easuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure (G01L)

G   Physics(393877)
G01   easuring; testing(233827)
G01L              easuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure (weighing g01g)(12540)
G01L7 - easuring fluid pressure(1477)
G01L21 - Vacuum gauges(326)

Selective bass post-filter // 2642553
FIELD: physics.SUBSTANCE: post-filter (440; 550; 740; 1040; 1140) of interharmonic noise attenuation adapted to receive an input signal which includes a preliminary audio signal decoded in accordance with one of several decoding modes, where post-filter activity is traditionally associated with particular coding modes, and to supply output audio signal. It comprises a control section intended for selective activation of the post-filter in one of the following modes: i) a filtering mode, where it filters the preliminary audio signal to produce a filtered signal and supply it as an output audio signal; and ii) a transmission mode, where it provides a preliminary audio signal as an output audio signal. Moreover, the mentioned control section is configured to transit to the transmission mode in response to a value of the post-filter signal, whereby a traditional decoding mode with filtration is applied without filtration, and the post-filter signal is included in the input signal.EFFECT: possibility of deactivating the post-filter depending only on post-filtering information and, accordingly, regardless of factors such as current coding mode.10 cl, 11 dwg

ultiparametric converter of parameters of technological environment for application in conditions of high pressure // 2642161
FIELD: measuring equipment.SUBSTANCE: device contains the basis, having a couple of indentations, has a pair of pillars, each pillar is located in the corresponding recess, connected appropriate isolating diaphragm and made interoperable with processing medium at high linear pressure. At least one linear pressure sensor assembly is mounted adjacent to one of the supports. This at least one linear pressure sensor assembly connects the corresponding insulating diaphragm to the line pressure sensor. The differential pressure sensor has a measuring diaphragm connected fluidly to the isolating diaphragms by the fluid flow. At least one additional sensor located in the converter module of the processing medium parameters for measuring the temperature of the processing medium. The electronic circuit is connected to a line pressure sensor, a differential pressure sensor and with at least one additional sensor to measure the electrical performance of each of these sensors. An electronic circuit is made with the ability to emit indicator processing medium on the basis of measured electrical characteristics of each of the linear gauge pressure, differential pressure sensor and at least one additional sensor.EFFECT: ability to conduct multi-parameter measurements of process media with high linear pressure in mediums with high static pressures.16 cl, 3 dwg
ethod for determining mechanical stresses in steel structures by magnetic control method // 2641511
FIELD: measuring equipment.SUBSTANCE: value of coercive force in the control point is measured at least 8 times in different directions. According to the measurement results a circular diagram of the coercive force values dependence from the orientation angle is plotted, the direction of extreme values of coercive force is determined and the direction of stresses is determined by them. The value of the coercive force is determined by the extreme values of the coercive force at the control point.EFFECT: increased determination accuracy of the stressed state of the steel structures.2 dwg

ethod of pressure evaluation in vacuum tank of servobrake // 2641364
FIELD: measuring equipment.SUBSTANCE: object of the invention is a method of evaluating the pressure (Pass) in vacuum tank (28) of vacuum servobrake (26) of motor vehicle (10), wherein the vehicle (10) comprises: a brake device (16); a servobrake (26); a pressure sensor (23). In carrying out the method, in the first step (E1), the braking pressure (Pmc) is cyclically calculated. In the second step (E2), the amplitude (ΔPmc) of pressure reduction is calculated. During the second step, the maximum (Pmc_max), and then the minimum (Pmc_min), obtained successively by the braking pressure, are stored in memory. Amplitude (ΔPmc) of the braking pressure reduction is calculated by determining the difference between the maximum (Pmc_max) and the minimum (Pmc_min). During the third step (E3), which begins after the completion of the second step (E2), the increase (Conso) of pressure in the vacuum tank (28) is evaluated as a function of amplitude (ΔPmc) calculated in the second step (E2).EFFECT: rapid and accurate evaluation of pressure in the vacuum tank.10 cl, 7 dwg
Laboratory line of production and research of carbon fibres // 2639910
FIELD: technological processes.SUBSTANCE: line includes two interconnected independent units: a thermal chamber for oxidative thermostabilization of polymer fibres up to 300°C, a through furnace for treatment of oxidized polymer fibres from 800 to 3200°C and an aggregate for possible finishing of the carbon fibre produced. The thermal chamber unit contains a thermostatically controlled sealed thermal chamber 1 with a temperature control system configured to control the temperature of the walls and the supply air according to a predetermined program in an automatic mode, a system 4 of fibre feeding, receiving and holding, equipped with a worm gear, a heated air supply system including an air pump 3 and a heater 2, a fibre tension measuring system comprising of a device 6 for fixing the deformation changes in the fibre, a roller 7 and a weight 8 for creating the required load. The through furnace unit of the oxidized polymer fibre heat treatment includes a heat treatment furnace body, divided into a precarbonization furnace 9 and a carbonization furnace 10, hermetically connected to each other, a system for fixing and controlling the temperature in the furnace, a system for removing and neutralizing the thermal destruction gases, a fibre feeding system containing a creel 11 and seven-rolls 13, a system for receiving fibre from the furnace, including the seven-rolls 13 and a receiving-winding device 12, a roll speed control system, a tension force measuring system and an inert gas supply system including a container 15. The apparatus for finishing the produced carbon fibre comprises of an impregnating bath 19, three-rolls 18 and a drying oven 20.EFFECT: study of the mechanism of thermostabilization, carbonization and graphitization, improvement of fibre characteristics.5 cl, 6 dwg

Control device for internal combustion engine // 2638228
FIELD: engines and pumps.SUBSTANCE: control device for internal combustion engine comprises a detonation control system, a cooling system and an electronic control unit. The detonation control system is arranged to calculate the value of ignition angle correction according to the presence or absence of detonation in the internal combustion engine so that the amount of ignition angle correction is updated in the direction of increase when detonation occurs and updated in the direction of decrease when no detonation occur. The detonation control system is configured for calculating the ignition angle based on the value of the ignition angle correction and igniting the spark plug of internal combustion engine at the ignition angle obtained by ignition angle delay in response to detonation occurrence. The cooling system is designed for cooling the internal combustion engine. The electronic control unit is arranged to supply a control value corresponding to the target value of the cooling parameter to the cooling system. The cooling system performs cooling of the internal combustion engine according to the control value. The electronic control unit is configured to adjust the control value based on the ignition angle correction value so that when the ignition angle correction value is increased, the correction value for correcting the control value is increased by the correction value in the direction in which the cooling capacity of the cooling system is increased. The cooling system of the internal combustion engine includes a first cooling system which primarily cools the cylinder block of the internal combustion engine, and a second cooling system which primarily cools the inlet periphery. The first cooling system and the second cooling system, respectively, include coolant flow channels independent from each other. The electronic control unit is configured to supply the control value to the second cooling system.EFFECT: prevention of detonation occurrence by controlling both the ignition angle and temperature of cooling water.10 cl, 11 dwg

ethod and device for measuring and elimination of rotational variability of pressure profile in area of shaft press with coating of squeeze press // 2638106
FIELD: machine engineering.SUBSTANCE: several sensor groups are arranged circumferentially on certain distance from each other in each transverse position on the sensitive shaft of the squeeze press to measure and eliminate or virtually eliminate effects of rotational variation that may exist on the sensitive shaft. These strategically located sensors are designed to measure the pressure applied to the cloth that passes through the squeeze press. The average of the measurement results of several sensors spaced apart from each other along the circumference, provides efficient elimination of any rotational variability that may exist in the transverse position on the sensitive shaft.EFFECT: increasing accuracy of measuring the pressure profile in the pressing zone and making more precise adjustments to reduce the variability of the pressure profile in the pressing zone, possibility to predict faults of the coating or bearings, resonance frequencies and other shaft abnomalities.25 cl, 15 dwg

ethod of measurement of supersonic flow pulsations and device for its implementation (options) // 2638086
FIELD: measuring equipment.SUBSTANCE: method includes measuring the pulsations of the supersonic flow by the receivers of pressure pulsations. Their sensing elements make flush with the surface of the device installed in the diagnosed supersonic flow, the output of the received signals from the sensor to the recording equipment with analogue-to-digital conversion with recording and mathematical processing in the computer system. The method is implemented by the device and its options. According to the invention, the device is installed in the diagnosed supersonic flow so that the surface of the device with pressure pulsation sensors are under different angles of inclination relative to the direction of the incoming flow, the instant readings of all the pressure pulsation sensors are recorded analogue-to-digital conversion of the readings is done. The mathematical processing is done using the method of separation of mode-decomposition of the resultant field of pulsations of the supersonic flow using the conversion factors of disturbances of the shockwave and separated swirling, entropy and acoustic modes of the supersonic flow pulsations are obtained. One of the options of the device for measuring the supersonic flow pulsation includes pressure pulsation sensors, which make flush with the surfaces of the device mounted on the holder in the diagnosed supersonic flow. According to the invention the device is made of four plates with sharp front edges, installed on the cross-shaped holder at different angles of inclination to the flow with the arms in a horizontal and vertical plane at distances, excluding the interaction of shock waves generated in each plate flowover, with the pressure pulsation sensors being placed on each plate of the device.EFFECT: improvement of accuracy of measurement of gasdynamic parameters, reliability and information content of the methods of research of the flow structure.4 cl, 6 dwg
Device for determining the zero moment point position, while walking without ankle flexion // 2638083
FIELD: measuring equipment.SUBSTANCE: device for determining the zero moment point position (ZMP), when a person walks without ankle flexion, represents two rectangular sole forms with fastenings to the person leg. Along the sole edges there are 4 strain gauges, the sensitive parts of which are located between two rubber substrates. The strain gauges are connected by the flexible wires busbar to the microcontroller board. The signal from each sensor is read and converted into the digital information for the further transfer to the computer, where the human THM trajectory at walking is calculated for the purpose of further using the data obtained, while creating the mathematical model of the anthropomorphic walking bipedal robot movement to teach the anthropomorphic robot to walk.EFFECT: accuracy increase of the zero moment point position determination, when the person walks without the ankle flexion.4 dwg

ethod for graduating multicomponent force and torque sensors and device for its implementation // 2637721
FIELD: machine engineering.SUBSTANCE: invention relates to graduation of the force/torque sensors (FTS) with a number of components from one to six. The goal is achieved due to the fact that FTS which mounting flange is connected with cables (at the ends of which there are loads of known mass) through intermediate components (stiffness which is chosen in such a way as to exclude the impact of tensile force on the mounting flange of FTS) moves behind its sensitive flange by the drive system (DS), providing spatial displacement. Thus, the angles of cable inclination and the force or torque acting on the FTS change. The angles of cable inclination are recorded by high-precision angle sensors. In order to tension the cables a drive system can be used instead of loads to ensure the creation of a stable tension force for the cables.EFFECT: calibration automation of force/torque sensors due to the use of BBS and ensuring the universality of the device, which allows to specify a load in the form of segregates of the main force and torque vector and in all allowable load range of the graduated force/torque sensor, as well as to create complex loading.3 cl, 10 dwg

Compensation of linear pressure effect on working range for diaphragm pressure sensor // 2637394
FIELD: measuring equipment.SUBSTANCE: differential pressure sensor (56) for measuring the differential pressure of the process fluid includes a sensor body (114. 116) having a sensor cavity (132, 134) formed in it by a cavity profile. Diaphragm (106) the sensor cavity deflects in response to the applied differential pressure. The diaphragm (106) has a diaphragm profile. The gap formed between the profile of the cavity and the profile of the diaphragm varies depending on the differential pressure. At least one of the profiles of the cavity or the diaphragm varies depending on the linear pressure, to compensate for changes in the gap caused by deformation of the sensor body, thereby reducing errors in the differential pressure measurements caused by the linear pressure.EFFECT: compensation of inaccuracies when measuring differential pressure caused by the linear pressure.21 cl, 16 dwg

easurement of corrosion rate // 2636408
FIELD: measuring equipment.SUBSTANCE: corrosion rate measurement system (130) is provided. It includes the first membrane (160) of the first material made tending to be exposed to a corrosive material susceptible to corrosion and deflecting in response to corrosion. The second membrane (162) is made tending to be exposed to corrosive material and deflecting in response to corrosion. The pressure sensor (134) is operatively connected to at least one of the first and second membranes (160, 162) and is configured to measure the deflection of at least one of the first and second membranes (160, 162) as a function of pressure and corrosion degree of at least one of the first and second membranes (160, 162).EFFECT: improving the accuracy and reliability of the obtained data.22 cl, 11 dwg

Pressure sensor with mineral-insulated cable // 2636272
FIELD: measuring equipment.SUBSTANCE: pressure-measuring system (10) is created. The system (10) comprises the pressure measurement probe (16) sliding in the process fluid medium and having the pressure sensor (50) with the electrical specification, which varies along with the process fluid medium pressure. The mineral-insulated cable (18) has the metal sheath (30) with the far end, which is attached to the pressure measurement probe, and with the near end. The mineral-insulated cable (18) comprises plenty of cords (34, 36) that pass in the metal sheath (30) and are separated from one another by the dry electroinsulated mineral (58). The safety member encircles the pressure sensor and protects the pressure sensor from the process fluid medium. The metal sheath near end is capable of the pressure tight attachment to the tank (14) with the process fluid medium.EFFECT: opportunity to work in very high temperatures, absence of necessity to use the glass, metal seal.28 cl, 6 dwg

ethod and device for fiber-optical measurement of temperature and/or tension based on brillouin scattering // 2635816
FIELD: measuring equipment.SUBSTANCE: device is proposed for a fiber-optical measurement of temperature and/or tension based on Brillouin scattering, comprising at least one laser light source (1) configured to emit laser radiation, an optical fiber (5) into which laser radiation is introduced and from which the Brillouin signal generated on the basis of the Brillouin scattering is derived. The device also comprises sensors detecting the outputted Brillouin signals, data processing means determining the local temperature and/or tension of at least the portions of the optical fiber (5) based on the detected Brillouin signals, at least one optical polarisation separator (10, 11) beam separating the derived Brillouin signals into two components (12, 13) with a different polarisation, at least one optical combiner (16, 17), adding a laser radiation to the Brillouin signal.EFFECT: improved accuracy of the data.13 cl, 3 dwg
ethod for measuring pressure inside ice cover // 2634097
FIELD: measuring equipment.SUBSTANCE: method for measuring pressure is used to determine the pressure which is average over the entire ice thickness in situ. Such data can be used to determine the characteristics of ice strength, to predict its destruction, to ensure the safe stay of people and equipment on ice and to predict the impact of ice on the shore, the bottom and hydraulic structures, as well as to design and construct hydraulic structures on the shelf of freezing seas and to ensure ice navigation. In the method for measuring the pressure inside the ice cover, two identical cylindrical sensors are involved, one of which is frozen in ice, and the other is freely positioned in a well drilled near the frozen sensor. In order to improve the temperature contact with the enclosing ice, the gap between the walls of the well and the sensor is filled with a temperature-conducting liquid. The signals from the frozen and free sensors are supplied to the signal converter unit, where they are digitized, the signal from the freely installed sensor is inverted and summed with the signal from the frozen sensor. The summed signal is supplied to the recorder. Thus, the intrinsic temperature deformation of the cylindrical sensor, connected to the temperature changes in the ice, is removed.EFFECT: expanded functionality of monitoring the stress-strain state of the ice field or fast ice and increased accuracy of measurements to predict fracture or hummocking of the examinated ice field as a result of external influences.1 dwg
Pressure sensor // 2634089
FIELD: measuring equipment.SUBSTANCE: proposed pressure sensor comprises a sensor body (2) made at least partially of an electrically insulating material with a first surface (2a) and a second surface (2b) located opposite to each other and a cavity (3) closed on at least its one axial end by a membrane part. The pressure sensor (1) comprises a circuit device (5) supported by the sensor body (2) and including: an arrangement of a first electric circuit containing corresponding tracks made of electroconductive material applied on the first surface from its external surface with respect to the cavity, wherein a plurality of components of the first circuit are connected to the first electric circuit including detection means for detecting bending or deformation of the membrane part; an arrangement (7) of a second electrical circuit comprising corresponding tracks (10, 11) made of electrically conductive material applied to the area of the second surface (2b), at that the arrangement (7) the second circuit is connected to at least one component (8; 8') of the second circuit having an active part (8) intended for fluid action and at least one first connection output (8b) and one second connection output (8B); and connection means electrically connecting the arrangement of the first electrical circuit to the arrangement (7) of the second electrical circuit and extending in the axial direction of the sensor body (2). The tracks (10, 11) of the arrangement (7) of the second electrical circuit include at least one first track (10) forming a plurality of first contact pads (10a) and one second track (11) forming a plurality of second contact pads (11a) for connecting the first output (8b) and the second output (8b) of the second circuit component (8; 8'), respectively. The first and second tracks (10, 11) are prepared in advance with provision of possibility of connection of the first output (8b) and the second output (8b) component (8; 8') of the second circuit with any of the first contact pads (10a) and with any of the second contact pads (11a), respectively, and/or to the first pad (10a) and to the second contact pad (11a) of any of the plurality of pairs of the first and second contact pads (10a, 11a), respectively.EFFECT: creating a sensor having flexible structure that does not maintain residual deformation under the action of controlled medium.16 cl, 20 dwg

Packaging of photonic crystalline sensors intended for extreme conditions // 2633675
FIELD: physics.SUBSTANCE: metallization of the sensor chip is performed on the toroidal pattern. Herewith the toroidal pattern corresponds to the diameter and thickness of the kovar tube walls. The center of the sensor chip is combined with the central axis of the kovar tube end face. The sensor chip is soldered to the kovar tube end face to form the sensor chip assembly. The fiber metallization is carried out. The metal sleeve is assembled with the metallized fiber by soldering the metallized fiber inside the metal sleeve. The metal sleeve is introduced inside the kovar tube of the sensor chip assembly. The end of the metallized fiber is combined with the sensor chip of the sensor chip assembly. The outer surface of the metal sleeve is soldered to the inner kovar tube surface of the sensor chip assembly.EFFECT: ability to operate under adverse environmental conditions.34 cl, 5 dwg

Pressure sensor for pressure measurement, in particular, in the exhaust system of internal combustion engine // 2633421
FIELD: engine devices and pumps.SUBSTANCE: pressure sensor (11) comprises a sensor housing (13) with at least one pressure measuring cell (DZ) installed therein with an associated sensor electronics (ASIC), and at least one pressure measuring cell (DZ) connected to pipeline (9; 10; 12) for measuring medium, in particular, with the measuring pipeline for the exhaust gas as a pipeline for the measuring medium. According to the invention, a thermostatic device (14) is provided for the sensor (11) in order to increase the measurement accuracy. Thermostatic device (14) is formed due to the fact that the thermostatic fluid (17) is guided through the sensor housing (13). Temperature in the sensor housing (13) is held at a constant temperature level by controlled heating, preferably by electrical heating (18) and/or by adjusting the volumetric flow of thermostatic fluid (17).EFFECT: creation of high-precision pressure sensor in the exhaust system of internal combustion engine.15 cl, 2 dwg

Bench for modeling aerodynamic load on opening aircraft elements // 2633089
FIELD: physics.SUBSTANCE: bench for modeling the aerodynamic load on the aircraft elements contains a base, on which the opening actuator is rigidly fixed with the opening elements equipped with a loading drive. The opening actuator is in the form of an opening hydraulic cylinder that interacts with the dynamometer through the pusher, which drives the opening actuator, which controls the opening elements. The loading drive is made in the form of pneumatic cylinders installed in the aerodynamic center of each of the opening elements, the rods of which are provided with the wheel supports supported on the base and directing a constant force along the whole path of the opening elements.EFFECT: increasing the accuracy of modeling the impact of aerodynamic loading by applying a load with a constant direction relative to the aerodynamic surface of the opening element, regardless of the opening element bending caused by the action of the aerodynamic load.3 dwg

Device for measuring differential pressure in plug fan // 2633003
FIELD: ventilation.SUBSTANCE: device includes: a bell-mouth equipped with a gateway for air inlet into the plug fan; a differential pressure cover that is connected to the bell-mouth to transfer a change in inlet pressure in the pipe; also a differential pressure measuring unit for determining the change in inlet pressure transmitted through the pipe. In accordance with the present invention, the differential pressure is measured on the plug fan suction inlet side, where the air flow is the most stable, preventing the device from resisting the air flow so as to prevent turbulence, thereby providing an accurate measurement of the differential pressure.EFFECT: increased accuracy of differential air flow pressure measurements in the fan.5 cl, 7 dwg

Digital torque wrench // 2632053
FIELD: measuring equipment.SUBSTANCE: digital torque wrench for tightening threaded connections is provided with second and third memory units and program switch, information outputs of the second memory unit are connected to second inputs of a first digital comparator, the information outputs of the third memory unit are connected to the second inputs of a second digital comparator, the address inputs of the second and the third memory units and interface port with personal computer are connected to outputs of the program switch, and the first memory unit is provided with additional address inputs connected with outputs of the program switch.EFFECT: expansion of process capabilities of the wrench by swift changing of wrench settings when tightening threaded connections with different torque and obtaining information on the quality of threaded connections tightening performed by an operator during the shift.1 dwg

Device for control of residual mechanical voltages in deformed ferromagnetic steels // 2631236
FIELD: measuring equipment.SUBSTANCE: device contains a magnetizing, bias and measuring system. The magnetizing system is made in the form of a U-shaped magnetic core of a soft magnetic material with magnetizing windings at its two poles. The contacts of the bias system are spring-loaded, fixed on a U-shaped magnetic circuit and are located in the interpolar space in the same plane as the ends of the poles of the U-shaped magnetic circuit of the plane facing the surface of the controlled article. The coil of the measuring system is placed on one of the poles of the U-shaped magnetic circuit, the measuring system is equipped with a Hall sensor located in the central part of the interpolar space of the U-shaped magnetic circuit, connected to the U-shaped magnetic core and the signal-sampling device.EFFECT: increasing the accuracy and reliability of control by measuring the internal magnetic field in the controlled article, increasing the location of the control, expanding the scope of the device by controlling the residual stresses in various directions of large-sized ferromagnetic products while reducing the weight and size of the device and simplifying the preparatory operations before monitoring.3 dwg, 1 tbl

atrix of optimal mixing and using decorrators for space sound processing // 2631023
FIELD: physics.SUBSTANCE: device for generating an audio signal having two or more audio channels. The device comprises a pre-processing unit and a signal processor. The pre-processing unit is configured to calculate the first covariance of the audio signal. The processor is configured to generate an output audio signal by applying a mixing rule to the two audio channels. The processor is configured to determine the mixing rule based on the first covariance of the input audio signal and based on the second covariance of the output audio signal. The second covariance is different than the first covariance. Mixing is performed in such a way as to minimize errors in the sound reproduction. The mixing rule depends on the input audio signal and the display matrix. Herewith the diagonal value of the first covariance matrix determines the energy of the input audio channels. The diagonal value is the inter-channel correlation between the input channels.EFFECT: improving the sound quality.25 cl, 15 dwg
Pressure strain-gauge sensor // 2631016
FIELD: measuring equipment.SUBSTANCE: pressure strain-gauge sensor contains a square flat diaphragm made of monocrystalline silicon with a support frame and four longitudinal resistance strain-gauges. The resistance strain-gauges are located on the planar surface of the diaphragm, containing 12 identical square sockets with a side not less than the length of the resistance strain-gauge and with depth not more than half the thickness of the diaphragm. Four sockets are located in the center, and eight others - in pairs at the edges of the diaphragm symmetrically to its middle axes. The gap between the sockets is the same and equal to the width of the resistance strain-gauges, which are located between the sockets, two - in the center, and two - at the edges of the diaphragm, forming a bridge circuit.EFFECT: increased sensitivity of the pressure strain-gauge sensor.5 dwg
Device for testing electromagnetic gravity force of magnetic rail brake // 2630711
FIELD: transportation.SUBSTANCE: device for testing the magnetic gravity force of a magnetic rail brake contains a steel rail, a force measuring rail unit, a guide channel, an elastic force measuring device and a pulling mechanism. The steel rail consists of segmented steel rails, the channel body of the guide channel extends vertically between the segmented steel rails, the limiting plate is fixed to the inner wall of the channel body, both of the force measuring rail unit and the elastic force measuring device are arranged inside the channel body, and the lower force measuring rail unit is connected to the elastic force measuring device and the pulling mechanism by means of an intermediate connecting rod.EFFECT: increasing the reliability of the magnetic rail brake.6 cl, 4 dwg

Pressure difference meter equipped with sensor // 2630710
FIELD: measuring equipment.SUBSTANCE: process variable meter for measuring technical fluid pressure includes: a primary input that is configured to supply primary process pressure and a secondary input configured to supply secondary process pressure; a differential pressure sensor that connects to the primary and the secondary input and transmits an output signal associated with the difference between the primary and the secondary pressure; a primary pressure sensor that connects to the primary input and transmits an output signal associated with the primary pressure. The sensor of the primary pressure is in direct contact with the technical fluid; a flange including, at least, a plurality of primary and secondary inputs and a direct connection channel that combines the primary pressure sensor with the primary input, and a meter circuit configured to transmit the output signal based on the output signal of the differential pressure sensor by the meter and further providing extended functionality depending on the signal coming from the primary pressure sensor. The second version of the measuring instrument for the process variables as well as a method for measuring the process liquid pressure by means of such meters are also implemented.EFFECT: inventions allow the fluid pressure meters to function in the event that the insulation diaphragm is in an inoperative state.18 cl, 6 dwg

Fiber optic pressure sensor // 2630537
FIELD: measuring equipment.SUBSTANCE: fiber optic pressure sensor contains an optical fiber, a radiation receiver. Around the optical fiber there are electrically luminescent and radially polarized piezoelectric concentric cylindrical layers, internal and external electrodes with varying control voltage are introduced. The inner electrode is transparent and is installed between the optical fiber and the electroluminescent layer, and the outer electrode is mounted around the piezoelectric layer.EFFECT: increase in the working surface of the fiber, the determination of the distribution function of the inhomogeneous pressure along the entire length of the fiber, and the location of the zones of increased pressure.6 cl, 11 dwg

Vehicles parking brake systems test bench // 2630345
FIELD: test equipment.SUBSTANCE: testing method of the vehicle parking brake system by checking its immobility is that the test vehicle is mounted on the previously adjusted for the width of its wheels support of the bench, and it is adjusted. Then, the parking brake system is turned on and the bench frame with the vehicle is tilted to the required angle.EFFECT: safety of the vehicles parking brake systems testing by one executer.1 dwg
Combined device for determining strength properties of berries // 2630199
FIELD: agriculture.SUBSTANCE: combined device for determining the strength properties of berries refers to the field of horticulture, namely to control means for evaluating the physical and mechanical properties of berries. The device consists of a portable housing with control buttons, an alphanumeric liquid crystal display, a load cell connected to a measuring and computing device, as well as a berry gripper, a movable crushing plunger located inside the gripper and driven by a mechanical drive from the operator's finger through a spring-loaded rod. The gripper is mechanically connected to the load cell and is made in the form of a closed, hollow, thin-walled cylinder with a top and bottom windows in the side surface, made for placing and inserting the berry and the rod of the mechanical drive through them, respectively, and in the upper end part along the radius, symmetrically on the window side, a cone-shaped slot for introducing the berry fruit-stalk is made.EFFECT: simplifying the instrument design due to reducing the number of the gripping device components.2 dwg

Sensitive element // 2629918
FIELD: measuring equipment.SUBSTANCE: inventive sensing element comprises a resilient rod with a cutting depth of 1.5-2 diameters of a strain-gauge wire, both ends of which are provided with arms of equal length and arranged perpendicularly to the axis of the elastic rod, and a tensile resistive wire of compression and tension, unidirectionally located with interference in the grooves of the cutting, The cross-section of the elastic rod is made in the form of a rectangle with curvilinear sides convex outwards, with round bevels, and the cutting is performed on the facets of an elastic rod with the step of a large diameter of the strain-gauge wire, the levers being mounted on the greater curved side of the elastic rod, and the anchor ends of the strain-gauge wire are fixed on the smaller curvilinear side.EFFECT: increasing the accuracy of measurements of dynamic loads in a wide range, including loads of small magnitude.5 dwg

Block, sensitive to process fluid pressure, for pressure transmitters under high working pressure // 2629900
FIELD: machine engineering.SUBSTANCE: transmitter contains: a body; pipe flange, attached to the body, designed to accommodate the transmitter in the pipe opening; a measuring device, running from the flange and into the pipe through the opening. The measuring device has a support (40) of the pressure transmitter, which has a support (36) therein. The pressure transmitter (52) runs through and is installed in the opening (36). The pressure transmitter (52) has an electrical characteristic, which changes under the applied pressure. The insulator insert (50) is designed to be effected by the process fluid. The insulator insert has an insulating diaphragm (64), positioned to contact with the process fluid. The channel (66) is connected through the fluid to the insulating diaphragm (64) to pass the process fluid pressure from the insulating diaphragm (64) to the transmitter (52) by means of incompressible fluid. The support (40) of the pressure transmitter is connected to the insulator insert (50) and has a noncircular shape if observed along the opening axis.EFFECT: creation of a compact device sensitive to pressure, without physical contact of particles or solid substances in the process, having an insulating diaphragm.26 cl, 15 dwg
Fiber optical pressure sensor // 2628734
FIELD: measuring equipment.SUBSTANCE: fiber optical pressure sensor made on the basis of an optical fiber comprises a housing having a channel for supplying a working medium, terminating with a plug, and an optical fiber with two Bragg gratings and as a sensing element. The plug is made in the form of a membrane, on the reverse side of which racks are made, in which the optical fiber is rigidly fixed. The first section of the optical fiber with the Bragg grating is located between the racks, and the second section of the optical fiber with the Bragg grating is located on the reverse side of the rack.EFFECT: improving the measurement accuracy.2 cl, 3 dwg

Thin film pressure sensor // 2628733
FIELD: measuring equipment.SUBSTANCE: claimed thin film pressure sensor comprises a sensing element, a union nut, inside which a cylindrical housing with switching elements is partially disposed, a cable entry, a cable bridge and a blinded bushing mounted on a cylindrical housing, on the side surface of which a nozzle with a hole located with the sharp angle to the housing. The nozzle is partially or completely made in the form of a local and smooth thickening of the sidewall of the bushing as it approaches the opening, and in the opening of the branch pipe, in the area of its thickening from the side of the inner cavity, an expanded portion is provided in which the fastening elements of the cable bridge are arranged. The cylindrical body is hermetically connected on one side along the end with the terminal block and on the other side with the sensitive element. The direction of the screw threaded contour of the threaded connection of the cylindrical body with the bushing is opposite to the direction of the screw threaded contour of the union nut. The bushing is mounted on a cylindrical body with the tightening torque, the value of which is determined by the relation MB=KMN, where K is the coefficient taking into account the ratio of the maximum permissible torque of the bushing with the cylindrical body, at which there is no change in the characteristics of the sensor, more changes in the characteristics of the sensor when the tightening torque of the union nut is applied, the maximum tightening torque of the union nut necessary to ensure a tight connection of the sensor to the object is calculated by the sensor for a particular size; MN is the maximum tightening torque of the union nut necessary to ensure a tight connection between the sensor and the object, and on the body in the area equidistant from the points of its connection with the sensor element and the terminal block, the ring stop is provided, the outer diameter dS of which is executed in accordance with the relation dB<dS<dN, where dB is the diameter of the thread of the bushing; dN is the inside diameter of the union nut.EFFECT: decrease in the error due to a wide range of non-stationary temperatures and increased vibration acceleration due to the possibility of an optimal placement of the cable jumper on the site due to the possibility of defect-free orientation of the threaded bushing branch when the sensor is mounted on the object and the sensor is removed from the object, improving the performance of the sensor with a minimum amount of experimental testing composition of products.3 cl, 1 dwg

ethod for determining stress condition of high pressure turbine blades // 2628304
FIELD: machine engineering.SUBSTANCE: in the method for determining the stress condition of a high-pressure turbine blade, including the determination of surface residual stresses, volumetric residual stresses, calculation of the total stress condition energy from the action of surface and volumetric residual stresses, and metallographic study of the material structure, determination of surface residual stresses, volumetric residual stresses and metallographic study of the material structure are carried out on one blade. The surface residual stresses are determined on samples of rectangular cross-section, cut along the axis of the airfoil from the output edge to the central axis both on the side of the back and on the side of the trough, the volumetric residual stresses are determined on samples of rectangular shape with strain gauges installed on them, cut from the input edge to the central axis both on the side of the back and on the side of the trough, the metallographic study of the material structure is carried out in the cross section of the remaining part of the blade airfoil, and the stress condition energy is calculated by adding the quantities of surface and volumetric residual stresses, measured by the depth of their occurrence.EFFECT: increased accuracy and reliability of the determination.2 dwg, 3 tbl
Device and method for controlling wireless sensor performability // 2627984
FIELD: physics.SUBSTANCE: device for controlling wireless sensor performability contains a reception block, a memory block, an analysis block and a control block. The interrogation block is adapted to request the readings from the wireless sensor and to store them in the memory block. The memory block is adapted to store the signals from the sensor. The analysis block is adapted to identify the noise component in the stored signals from the sensor and to calculate the value of the SD (standard deviation) of the noise component and to record this value in the memory block. The control block is adapted to detect changes in the received signals from the sensor as the difference between two successive signals from the sensor and the issuance of a fault signal, if changes in signals from the sensor do not exceed 6 SDs for a predetermined time Tcont. Moreover, the above-mentioned blocks are functionally connected to each other directly or indirectly via communication links. The method for controlling the wireless sensor performability is also stated.EFFECT: increasing the reliability and accuracy of the sensor failure detection.11 cl
Device and method for controlling sensor performability // 2627976
FIELD: physics.SUBSTANCE: device for controlling sensor performability contains a reception block, a memory block, an analysis block and a control block. The reception block is adapted to receive signals from the sensor and to store in the memory block. The memory block is adapted to store the signals from the sensor. The analysis block is adapted to identify the noise component in the stored signals from the sensor and to calculate the value of the SD (standard deviation) of the noise component and to record this value in the memory block. The control block is adapted to detect changes in the received signals from the sensor as the difference between two successive signals from the sensor and the issuance of a fault signal, if changes in signals from the sensor do not exceed 6 SDs for a predetermined time Tcont. Moreover, the above-mentioned blocks are functionally connected to each other directly or indirectly via communication links. A method for controlling the sensor performability is also stated.EFFECT: increasing the reliability and accuracy of the sensor failure detection.14 cl

Sensor for measuring tie strength // 2627860
FIELD: measuring equipment.SUBSTANCE: device consists of a metal case in the form of a parallelepiped with a mechanical design for an extensometer, from which support and fixing elements are provided on one side or on both sides, equipped with grooves along the perimeter. As support elements, three pins or rigid pins located at the tetraktis nodes with respect to the longitudinal axis of the case are used, one of them occupying the extreme position is movable and is extended by shifting forward and backward to return to its working position from the front. On the back surface of the case is a separate surface area, limited by pits, under the hook with a wrench, adjustable or not, with which alignment can be performed. In addition, a protective cover is provided, which is put on and attached to the sensor case by pressing.EFFECT: improving the measurement accuracy.4 cl, 17 dwg

Valve and method for controlling valve // 2627755
FIELD: construction.SUBSTANCE: locking valve element can move between the closed position and the fully open position. There is a drive device designed to change the position of the locking valve element. There is a control unit that contains electronic memory adapted to receive and store the value of the limiting value of the valve opening degree. Said value of the limiting value of the valve opening degree characterizes the selected intermediate position between said closed position and said fully open position of the locking valve element. The control unit controls the drive device in such a way that it limits the movement of the locking valve element by the positions from said closed position to said selected intermediate position. There is a valve system containing such a valve, and a method of controlling the valve.EFFECT: simplifying the design and simplifying the control of the valve having the function of balancing.14 cl, 10 dwg
Piezo resonant-viscous vacuum gauge // 2627544
FIELD: measuring equipment.SUBSTANCE: measuring the gas pressure in the low and medium vacuum in the range of 0.001-1000 Torr for measuring adsorption and condensation of the gas components on the solid surface, regardless of changes in pressure and density of the gas. Essence: two heat-sensitive quartz resonators of the tuning-fork type and a semiconductor sensor are used in the proposed device. The resonator impedance is measured, depending on the gas pressure, the resonator frequency is measured, depending on temperature changes and the temperature measurement by the temperature sensor. The device contains electronic units for measuring impedance and frequency of the resonators, units for compensating the temperature and adsorption errors of the resonator impedance change signals and the adsorption errors of the resonator frequency change, a unit of transforming the resonator impedance change signals, depending on the gas pressure and the changes in the attached mass, the adsorption resonator mass. Displaying the gas pressure value and the relative change of the attached mass on the resonator is made using digital indicators.EFFECT: expanding the gauge measurement range, decreasing the signal measurement errors of the resonator impedance changes depending on the gas pressure, expanding the functional capabilities.2 dwg

ethod and sample for determination of strength of weld coupling of polymer pipes // 2627170
FIELD: machine engineering.SUBSTANCE: sample is cut from the weld coupling. It contains parts of the polymer pipes to be connected and a part of the coupling overlapping with the pipes and welded to them. The cut specimen is subjected to a tensile test carried out under predetermined conditions. The area of the tested weld joint in the sample does not exceed the minimum cross-sectional area of the sample outside the weld zone.EFFECT: possibility of a more accurate determination of the strength of the weld during socket welding of polymer pipes and the expansion of appliance arsenal.10 cl, 3 dwg
ethod of industrial production of precision piezoelectric sensing elements // 2626080
FIELD: measuring equipment.SUBSTANCE: each sensor is formed from three sensing elements of identical length. Each sensor element is cut out in the form of a rectangular bar of heat-treated single monocrystals of lanthanum gallotantalate. Each sensing element has a crystallographic orientation (22. 0), the length of the sensing element coincides with the direction corresponding to the effect of dynamic pressure. Sensing elements are manufactured in a single technological cycle in three stages. In the first stage, the lanthanum gallotantalate crystal is cut along the crystallographic polar direction X with a pitch which specifies the thickness of the sensing element into the preforms of the first type, having cutting planes of the crystallographic orientation (22. 0), and grinded to a predetermined thickness and roughness. In the second stage, the obtained preforms of the first type with cutting planes X are cut along the Y direction with a pitch which specifies the length of the sensing element along the axis <0.10> into the preforms of the second type. In the third stage, the resulting preforms of the second type with cutting planes Y are cut along the Z direction with a pitch which specifies the width of the sensing element along the axis <00.1> into the preforms of the third type. Before performing the second and third stages, the preobtained preforms of the first type and the second type are glued into blocks and the obtained blocks are subjected to double-sided grinding and polishing until a predetermined size of the sensing element is achieved along the direction <01.0> and the direction <00.1>. After performing the second and third cutting stages, the mentionted blocks of the preforms of the first and second types are unglued and washed in an organic solvent. In the third stage, the final product is obtained in the form of a series of sensing elements of identical length, each of which has a crystallographic orientation (22. 0).EFFECT: possibility of obtaining microminiature sensors with identical geometric dimensions with a minimum linear dimension spread on an industrial scale.5 cl

ethod of monitoring system operation of processing liquid food product // 2625236
FIELD: food industry.SUBSTANCE: processing system comprises at least one section (110, 120) through which the liquid foods during processing and cause sludge deposition in mentioned section (110, 120), and at least one sensor (112, 114, 122, 124) configured to detect a pressure difference in mentioned at least one section for monitoring the removal or precipitation of mentioned sludge. The processing system is configured to stop the passage of fluid when a certain pressure difference is a predetermined parameter. The processing system is configured to identify the product being processed by the system, and associating the predetermined pressure difference metric with mentioned product.EFFECT: maximum degree of purification in minimum time.25 cl, 4 dwg

Combined alarm pressure and temperature filter // 2625043
FIELD: machine engineering.SUBSTANCE: filter indicator contains a housing with a cylindrical chamber equipped with a spring-loaded cylindrical piston separating the chamber into two cavities and a magnet attached to the piston. In the case on the magnet side there are stationary and movable pressure differential signalling contacts, the movable contact being made magnetically controlled. The first chamber cavity is configured to be connected to the filter inlet, the second cavity on the side of the spring is configured to be connected to the filter outlet. The magnet is fixed on the opposite end of the piston from the spring. In the body, a second chamber is provided, provided with a membrane separating the second chamber into two cavities. The first cavity of the second chamber is configured to be connected to the filter inlet, and in the second chamber of the second chamber, there are fixed and movable signalling contacts of the inlet pressure, the movable contact being connected to the membrane. A thermistor is equipped with temperature alarm contacts is fixed in the housing.EFFECT: expansion of the functionality of the filter indicator.1 dwg

Device for measuring aerodynamic pressure on tunnel constructions // 2624786
FIELD: measuring equipment.SUBSTANCE: device for measuring aerodynamic pressure on tunnel structures contains a body (1), on the front wall of which an elastic membrane is placed (2). Inside the case (1), a measuring device is installed in the form of a laser rangefinder (3) installed in the housing (1) in such a way that its beam (4) is perpendicular to the elastic membrane (2). The housing (1) of the device is connected to the tunnel lining (5). Data transfer to the computer is carried out via the output (6) from the laser range finder (3).EFFECT: expansion of the field of use of the device for measuring air pressure, namely the measurement of aerodynamic pressure on tunnel structures during the movement of high-speed trains.1 dwg
Device for determining resistance of geosynthetic materials to shocked dynamic load // 2623839
FIELD: chemistry.SUBSTANCE: in the device for determining the resistance of geosynthetic materials, a cylindrical part is placed between the guide rod and the impact cone, on which a ferromagnetic core in the form of a hollow cylinder is placed outside, the protective shield is made of a non-magnetic material inert to electromagnetic waves, and on its outer side an inductor is installed, the height of the ferromagnetic core corresponding to the length of the inductor, and the length of the inductor is 1.5 times greater than the height of the impact cone. The inductance coil is included in the measuring circuit, where it is electrically connected to the bridge measuring circuit, to the input of which the signal generator is connected, and to the output there is an amplifier-detector and a quadrator, a normalizing transducer and a measuring device connected in series.EFFECT: improving the speed and accuracy of the test process.2 dwg, 1 tbl

eter of output characteristics of spiral springs // 2623816
FIELD: measuring equipment.SUBSTANCE: meter of the output characteristics of the spiral springs further comprises magnetoelectric transducers mounted symmetrically and inverted orthogonally at the ends of the beam arms, each of which comprises a coil and a fixed coaxial permanent magnet. The windings of the coils are connected in series to the third and the fourth outputs of the electronic measuring unit, and the magnetic poles of each of the permanent magnets and coils are oriented with respect to each other in such a way that the interactions of the magnetic fields create moments aimed at balancing the torque of the beam generated by the spring under test, and the outriggers of the output shaft are fixed on the platform, on which the level in the horizontal plane of the platform, the stepping motor, the fixing module of the test spring are also installed, orthogonal to the rocker arm support. The platform is mounted on vibration-regulated suppression supports, a source of mechanical vibrations, the input of which is connected to the output of the vibration control unit.EFFECT: increasing the accuracy of measuring the output characteristics of spiral springs.6 cl, 1 dwg

Pressure sensor implemented on basis of nanotenzometers related to resonator // 2623694
FIELD: measuring equipment.SUBSTANCE: invention relates to a pressure sensor of a semiconductor material comprising a housing (1) forming the chamber (2) under a secondary vacuum, at least one resonator (3) located in the chamber and suspended by flexible bars (4), at least to one resiliently deforming diaphragm (3) closing the chamber, which also includes means for driving the resonator (7, 12), causing the resonator to vibrate, and means for tracking the vibration frequency of the resonator. The tracking means comprise at least one first pendant piezoresistive tensometer (9), one end of which is fixed to one of the bars and one end of which is fixed to the diaphragm. The resonator and the first tensometer form the alloyed zones, which are essentially identical in nature and in concentration.EFFECT: increasing the system sensitivity.21 cl, 3 dwg
Pressure drop measuring module with piezoresistive sensor protected from overload pressure // 2623683
FIELD: measuring equipment.SUBSTANCE: device contains a two-piece cylindrical body, on the opposing end surfaces of which there are separation membranes. Inside the body there is a three-piece cylindrical body. In the first part of the body there is a strain-resistive sensor, and in the cavity at the boundary of the middle and the third parts of the body there is the first elastic compensation membrane and the additional second elastic compensation membrane. The membrane is located above the membrane with a gap between them. The gap is formed by welding the peripheral surfaces of the membranes with end ledges on the middle part of the body, located at different levels. Both elastic membranes are located on one side of the sensor and are corrugated with corresponding corrugations. The piezoresistive sensor is connected to the separation membranes and elastic compensating membranes by the pressure feed channels.EFFECT: reducing the dimensions of the pressure measuring module while maintaining good performance.1 dwg

ethod of measurement of three load components in rail cross section under contact interaction with wheel of rail mobile composition // 2623665
FIELD: measuring equipment.SUBSTANCE: invention is designed for simultaneous measurement and recording of three components of the total load - vertical force, lateral force and tipping torque acting in the selected cross-section of the rail when it interacts with the wheel of the rolling stock. The method consists in increasing the accuracy of the measurement, the strain gauges glued in the four zones of the rail neck are connected to three measuring bridges, each bridge is connected to a separate measuring channel of the strain gauges, the calibration is carried out in accordance with the three-factor experiment plan by combinations of input factors - vertical force, Lateral force and tipping torque. The calibration coefficients are determined by multiplying the matrix of the experimental plan by the matrix of the right generalized inverse of the response matrix, the systematic measurement errors are determined as the difference between the applied and restored response values of the factors in the plan. The results of the measurement are presented as a combination of the response value of the input factor and the maximum value of the systematic error obtained with the calibration.EFFECT: increasing the accuracy of measurements and reducing the systematic error of measurements.4 dwg
ethod for determining pump pressure with electric motor // 2623195
FIELD: measuring equipment.SUBSTANCE: during the implementation of the method, the pressure at the supply line is measured, the instantaneous values of the currents and voltages of the induction motor stator are measured, the three-phase currents and voltages are converted into two-phase components of currents and voltages, and the estimated stator current components are determined. Then, the difference between the estimated values of the stator current components and the current values of the stator current components is calculated, the estimated values of the rotor flux linkage components are determined. Estimated values of stator current components and the rotor flux linkage components determine the electromagnetic moment of the induction motor. Using the estimated values of the rotor flux linkage components and the difference between the estimated values of the stator current components and the current values of the stator current components, the loading moment of the centrifugal pump is determined. Using the electromagnetic moment values of the induction motor and the loading moment of the centrifugal pump, the current angular velocity of the centrifugal pump impeller rotation is determined. The hydraulic capacity of the pump is determined. The actual flow rate of the pumping unit is determined based on the values of hydraulic power and rotor speed. The actual flow rate values of the pumping unit and the pressure on the supply line determine the pressure developed by the pump unit.EFFECT: increasing the accuracy of determining the fluid pressure of a centrifugal pump with an asynchronous electric drive.1 cl
 
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