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Pressure measuring device comprises a generator of electromagnetic oscillations with its output being connected to the element of electromagnetic oscillations input, an element of electromagnetic oscillations output connected to a detector input. An amplifier and an intensity metre are set in the device as well. The sensitive element is made as a stationary metal plate and a deforming metal plate placed at some distance from one another. |
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Strain gage pressure sensor based on thin-film nano- and microelectromechanical system Strain gage pressure sensor based on a thin-film nano- and microelectromechanical system. This pressure sensor is intended for use in high vibratory accelerations and wide range of transient temperatures of environment and target medium. The invention concept is as follows: a jumper cable 5 is made as four twisted copper silver plated current-carrying conductors insulated by fluorine plastic or polyimide with a lay length not exceeding the length of the jumper cable, and the common screen 12 as an armour of copper silver plated wires protected by a fluorine plastic or polyimide-fluorine plastic film 13. A cavity 9 between a terminal board 4, an expanded part 10 and walls of a bushing 6 is filled with polymer material with the coefficient of heat conductivity 10 times less than the coefficient of heat conductivity of the bushing material. The lateral side of a sleeve nut in the area adjoining to the butt end 14 of the sleeve nut 2 closest to the bushing 6 is made as a straight circular conical surface 15 limited from the bushing side by the butt end 14 of the sleeve nut 2 at one side and the sleeve nut 2 matching a hexagon 16 at the other side, at that the axis of the conical surface coincides with the longitudinal axis 17 of the sensor and an angle between the generatrix of the conical surface 15 and the longitudinal axis 17 of the sensor is equal to an angle of a tube hole 8 location in regard to the longitudinal axis 17 of the sensor. A sensory element 1 is made so that the lateral side square area 18 in its receiving cavity and membrane 19 meet the ratio SL=(10…14)SM, SM=(7…20)10-6 m2 - square area of the membrane. Besides, radius r0 of the conical surface 15 in the plane of the butt end of the sleeve nut 2 closest to the bushing 6 is made as per the claimed ratio and the sensory element 1 is made so that the lateral side square area 18 of its receiving cavity and membrane 19 meet the ratio SL=13,4 SM, SM=12.56·10-6 m2. |
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Liquid pressure sensor comprises a sensitive element, converting pressure into an electric signal, a power supply cable, a hollow receiver of pressure and a pneumatic line of compressed gas supply communicating with the pressure receiver, which at the inlet is equipped with stop valves and connections for connection of a reference meter of gas pressure and source of compressed air. |
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Set of invention relates to watermark implantation to data signals. Proposed device to be incorporated with input info representation comprises data adder to be grant watermark and extra data to input info representation to get input info representation with watermark and extra data. Extra data to be added comprises descriptive data describing implantation of at least one watermark into input info representation. |
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Unit of protection of separating membrane of pressure sensor against pressure overload Unit of a separating membrane comprises a body, on which a separating corrugated membrane is attached in a non-detachable manner along the periphery. Corrugations of the separating membrane correspond to corrugations on the body under it and form a working gap with the body, filled with the separating non-compressible liquid. The working gap is connected with the cavity of the sensor with the help of two holes on the edge corrugation. On the corrugated surface of the body there are two radial grooves that connect the gap under the central area of the membrane with holes that connect the working gap with the sensor cavity. |
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Method to record the fact of hydraulic medium overpressure and recording of its maximum value is based on using dependence between compression force and elastic deformation of a spring. The recording of the overpressure fact is carried out by means of damage of the control membrane with a stem driven by a piston under action of hydraulic medium pressure force. The position of the stem after fixation of the fact certifies maximum pressure, which influenced all elements of the hydraulic system. There is a device that realises the above method for recording of the hydraulic medium overpressure. |
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Circuit breaker of power supply on pressure Circuit breaker of power supply on pressure comprises a housing, in which an elastic element with a rod is located, as well as an electrical contact mechanism, a power spring, an adjusting gear, and it is additionally provided with a locking mechanism and transfer mechanism which are located between the elastic element and the electrical contact mechanism and are connected to the latter via the push rod. |
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Device for detecting overpressure and collision in shock absorber Detection device includes hollow housing (11), in which piston (14) is tightly installed and provided with possibility of being moved with sliding. The piston receives pressure in the chamber through inlet (12) of the housing interconnected with that chamber. The piston is retained in the position of pressure overcoming by means of retention device (21). The latter has the possibility of releasing the piston when the specified pressure threshold is achieved or exceeded. The piston is moved in forced manner under action of pressure to indication position. The piston is rigidly attached to pin (27) projecting out of the housing inlet. The pin has the possibility of forced movement with force overcoming of the retention device. |
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Working pressure indicator of industrial pressure gauge Device represents a one-piece plastic elastic channel in the form of an open spiral, which is fixed on front part of the pressure gauge above the dial glass under the rim of upper part of the pressure gauge housing. The indicator consists of a radial guide, along which pointers move. Each pointer has a shank projected onto an end part of the pressure gauge housing. Radial guide is interconnected with a radial support of the indicator, which is located along internal outline of the dial glass, and pressed to the glass with the rim of upper part of the pressure gauge housing. A locking device of the indicator consists of a latch and a cut-through and performs the latching function of the elastic spiral-shaped channel of the indicator to a circle of regular shape. Radial guide of the indicator is closed through a shield serving to indicate the required information on this product. |
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Method to monitor technological process of brake testing Method consists in measurement of pressure parameters in a braking line, and the following operations are carried out in series: operator's identity is confirmed, base station time and measurement start time are synchronised. Then integrity of the braking line is monitored in accordance with the technological regulations with input of the produced data into the microcontroller's memory and transfer of all information along a radio channel to the base station in real-time mode. Besides, update of software and microcontroller operation parameters is provided from a keyboard and along a radio channel from the base station. Also braking pressure parameters are measured in the line. Braking pressure parameters may be measured in the tail part of the train and simultaneously in the head part of the train, with simultaneous transfer of data to the base station, besides, measurement selection is also dependent on the technological regulations. |
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Invention discloses a time scale deformation loop computer for inclusion in the design of an audio signal decoder in order to generate a decoded audio signal presentation based on an encoded audio signal presentation, which performs the function of receiving encoded information on deformation coefficients, extracting therefrom a sequence of deformation coefficient values and calculating deformation loop node values, starting from the initial value of the time scale deformation loop. The ratio of the time scale deformation loop node values to the initial time scale deformation loop value, assigned to a reference time scale deformation loop node, is defined by deformation coefficients. The time scale deformation loop computer calculates the value of the given node point of the deformation loop which is separated from the initial deformation loop node by an intermediate deformation loop node, based on the product of coefficients which are, on hand, the ratio of the value of the initial point of the deformation loop to the value of the intermediate node point of the deformation loop and on the other hand, the ratio of the value of the intermediate node point of the deformation loop to the value of the given deformation loop node. |
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Hydrostatic downhole densitometer Hydrostatic downhole densitometer comprises a body with two differential pressure sensors, which separate the inner cavity of the body into three chambers, two of which arranged at the body ends serve to receive pressure of environment, and a chamber arranged between differential pressure sensors is filled with a liquid with available physical properties. The chamber between differential pressure sensors is hydraulically connected with the environment via a hole in the side wall of the body with the help of a medium separator located inside the body with a movable partition. |
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Universal indicator of working pressure of electric-contact manometer Device which indicates working pressure of an electric-contact manometer consists of a rim with a mounting groove; crosswise around the rim there are wedge-like incisions, a radial guide in form of an annular closed section, indicator pointers and a worm drive clamp; the rim is meant for mounting the pointer on the manometer using the worm drive clamp which is mounted in the mounting groove; the radial guide lies on the front edge of the rim and serves for radial displacement of the indicator pointer on its annular closed section; behind the radial guide on the outer side there is a radial groove, and on the inner end surface there are crosswise notches; the indicator pointer on the rear side has a cross-sectional sampling, in the lower part of which there are fixing teeth, and in its top part there is a spring-loaded element in form of a beam; in working state, the indicator pointer moves on the section of the radial guide which is in its cross-sectional sampling, while the spring-loaded element wound up into the radial groove, and the fixing teeth are in a state of engagement or during movement skip the crosswise notches; the indicator pointer is mounted on the radial guide through the narrowing of its section in the lower part of the working pressure indicator; for universal use of the device on manometers of different types, on the inner surface of the rim, on edges of segments formed by the wedge-like incisions, there are cut lugs. |
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Pressure metre with screened hall effect sensor Pressure metre, comprising at least one pressure hall effect sensor (11), at least one associated magnet (6), movable relative to it in accordance with the pressure subject to measurement, and at least one protective screen (13), made of a ferromagnetic material, which surrounds the sensor (11) and the magnet (6), at the same time a screen (13) has one side (13') closest to the sensor (11), in which a deepened section (17) is formed, in direction of the sensor (11), to amplify a magnetic flow. At the same time the pressure metre additionally comprises a body (102) of a base equipped with an input (100) for fluid medium and a chamber (110), which communicates with the input (100), a membrane (2), which supports the magnet (6), which tightly seals the chamber (110), and a cap (7), arranged around the specified membrane (2) to support the specified screen (13). |
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Method of encoding and decoding audio signal and device for realising said method Spatial information associated with an audio signal is encoded into a bit stream which is transmitted to a decoder or is recorded on a data storage medium. The bit stream contains a different syntax associated with time, frequency and spatial regions, and also includes one or more data structures (e.g., frames) which contain ordered sets of time intervals for which certain parameters are used. The data structures can be fixed or variable. A data structure type indicator may be inserted in the bit stream to enable the decoder to determine the data structure type and activate the corresponding decoding process. The data structure includes position information which can be used by the decoder to identify the correct time interval for which the given set of parameters is used. The position information of the time interval may be encoded using a fixed number of bits or a variable number of bits based on the data structure type indicated by the data structure type indicator. For variable type data structures, position information may be encoded by a variable number of bits based on the position of the time interval in the ordered set of time intervals. |
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Shutoff separating device for pressure gauges Shutoff separating device for pressure gauges includes housing (1) with the first (2) and the second (3) chambers, with nozzles (10) for connection of the device to the pipeline and for connection of working pressure gauge. Valves (4), the movement of which is controlled with flywheels (5), are installed in chambers. The first pair of mutually perpendicular holes (12) attaches the pipeline cavity and the first chamber. The second pair of mutually perpendicular holes (13) attaches the first chamber and working pressure gauge. In housing there is an inclined hole (14) at an angle of 20° to the housing axis, which attaches the second pair of mutually perpendicular holes and the second chamber. One of the holes of the first pair of mutually perpendicular holes and inclined hole are passages in seats of valves. In the housing there is a threaded hole for connection of a test pressure gauge or gauge of working medium discharge from the device. Threaded hole is connected to the second chamber. |
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Fast algorithms for computation of 5-point dct-ii, dct-iv, and dst-iv, and architectures More efficient encoder/decoder is provided in which an N-point MDCT transform is mapped into smaller sized N/2-point DCT-IV, DST-IV and/or DCT-II transforms. The MDCT may be systematically decimated by factor of 2 by utilising a uniformly scaled 5-point DCT-II core function as opposed to the DCT-IV or FFT core functions used in many existing MDCT designs in audio codecs. Various transform factorisations of the 5-point transforms may be implemented to more efficiently implement a transform. |
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Indicating pressure gauge with induction sensors Pressure gauge has a cylindrical housing, an elastic sensitive element with a mechanism for circular movement of the pointer with a blind and protective clear glass. The pointer with a semi-circular plate of indicator blind is integrated with a support arm and a balance beam. The support arm lies perpendicular to both the diameter D of the indicator blind and the chord L of the balance beam-counterweight. Induction sensors lie on pointers of limit pressure values at radii R1 and R2 from the axis of the tube. One induction sensor lies at a distance shorter than the radius R1 and the second induction sensor lies at a distance greater than the radius R2. The value of the radius R3 of the indicator blind is greater than the value of the larger radius R2 and during rotation of the indicator blind, induction sensors of limit pressure values are covered. In the first pointer of limit pressure values at a distance of the larger radius R2, there is a semi-circular cut into which the semi-circular protrusion of the second induction sensor enters when limit value pointers are superimposed. The limit value pointers structurally have a limit of 180 degrees in setting the range of separation of pointers. |
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Method of improving flight safety of aircraft Method involves measuring full and static pressure in the nose and tail parts of the aircraft, determining pressure difference in the tail and nose parts, comparing with a permissible value and determining flight safety based on the value of deviation from the permissible value. |
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Solder sealing of case filled by fluid In compliance with this invention, sealing element is placed in case filling neck, clamped and soldered. Note here that said sealing element represents cylindrical insert to be fitted in filling opening with clearance to be taken up by clamping along ledge cone, said ledge being made along case opening. Then, cylindrical insert end face is soldered to conical ledge top. |
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Gas-filled vessel threshold pressure indicator Proposed indicator represents a pressure-operated valve with adjustable operation level and comprises signal generator and transmitter integrated into gas acoustic emitter with its pressure-operated valve outlet communicated with emitter inlet. Said pressure-operated valve incorporates the device to it to be mounted on gas-filled vessel gate valve and gate valve unlocking device. Mike is used as said receiver. |
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Accuracy-optimised encoding with supression of lead echo Method of encoding multichannel audio signals involves generating a first output signal (x'mono) which represents coding parameters which characterise the main signal (xmono). The main signal (xmono) is a first linear combination of signals (16A, 16B) of at least a first and a second channel. The method also involves generating a second output signal (Pside), which represents coding parameters which characterise a side signal (xside). The side signal (xside) is a second linear combination of signals (16A, 16B) of at least a first and a second channel in the coding frame. Generation of the second output signal also includes scaling the side signal (xside) on the energy loop of the main signal (xmono). |
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Field device of production process with energy limited battery assembly Field device (200) of production process has housing (202) with wall (204). Wall has feedthrough hole (207) between battery compartment (208) and compartment (206) of electronics. Feedthrough connector (230) seals the feedthrough hole and includes power connector (234, 236) connected to electronics (212) of field device of production process. Feedthrough connector includes polarisation cover which envelopes power contacts available from battery compartment for connection. Battery assembly (216) includes battery housing with connector (244) of battery, which includes poured base of connector, which protrudes into polarisation cover, and electric contacts which come into contact with power contacts in polarisation cover, and includes battery (242) and power limiter (240) connected to battery connector which is engaged with power connector for supply of power to electronics of field device of production process. Seal (250) seals the connection of polarisation cover and base of connector. |
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Multi-position vortex gas pressure control Multi-position vortex gas pressure control includes supply and discharge gas pipelines, vortex tube, control assembly, and hot circuit channel. Control assembly represents slide valve consisting of cylinder in the wall of which the holes are made throughout the length, the number of which is equal to number of operating positions of control, which are equipped with dosing branch pipes, closed from above and from below with covers. Covers are equipped with gas supply branch pipe connected to supply gas line and with balancing branch pipe. Hollow plunger is arranged inside cylinder of slide valve. Elastic element is located inside plunger. Vortex tubes have finning of outer surface of housing and connected through cold tubes to dosing branch pipes of slide valve, and through hot tubes to outlet header. Header is connected through balancing pipe to balancing branch pipe, thus forming hot circuit channel, and to discharge gas line. |
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Device has a damping part and a load receiver. The device also has a control unit, a cylindrical housing divided by a partition wall into two chambers linked by an orifice. In the lower chamber there is a piston fitted with a spring, and the other chamber houses the said load receiver made in form of coal column in an airtight housing having a membrane and an adjustment screw. The control unit can record changes in resistance of the coal column. |
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Pressure transducer having multiple reference pressure sensors Pressure transducer has an input for a first pressure of process liquid, designed for receiving a first pressure of the process liquid; an input for a second pressure of process liquid, designed for receiving a second pressure of the process liquid; a differential pressure sensor linked to the first and second pressure of the process liquid; a first pressure sensor linked to the first pressure of the process liquid; a second pressure sensor linked to the second pressure of the process liquid. The pressure transducer also has a circuit which is functionally connected to first and second pressure sensors, as well as the differential pressure sensor. The circuit can measure the first and second pressure of the process liquid, as well as differential pressure, and transmit data depending on the measurement results over a process communication circuit based on the measured first and second process pressure. |
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Method of diagnosing rolling stock brake main line and device to this end Invention relates to railway transport, particularly to devices designed to diagnose rolling stock brake main line and can be sued to detect faulty spots in braking system. In compliance with proposed method, signals are continuously recorded and stored in signal measurement circuits that contain data on time intervals of arrival of threshold pressure variations in the train head and tail ends arriving to said circuits. Then requested data on request signals are sent to computer to determine car number wherein the air leaks exist using the pre-registered calibration curve. Proposed device comprises first measurement circuit arranged in the train head end and second measurement circuit arranged in the train tail and, and computer. First measurement circuit comprises first pressure controller, first differentiator, first comparator, first radio modem and first recording unit. Second measurement circuit comprises second pressure controller, second differentiator, second comparator, second radio modem and second recording unit. Said recording unit can store data on time of arrival of brake wave from air leak source to train head and tail ends. Computer can generate synchro signal of recording units inquiry. |
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Working pressure pointer for electric-contact manometre Device which indicates working pressure of an electric-contact manometre consists of a radial guide with a guide channel, a holder which holds the radial guide on the housing of the electric-contact manometre and a rubber pointer. The radial guide serves for radial displacement of the pointer along the guide channel and is on the leading edge of the holder. The radial guide channel is made in form of a set of non-closed holes with smoothed mutual intersection mating. On the rear side of the radial guide there is a rear groove formed by a rear radial shoulder and the wall of the holder. The holder has the shape of a closed ring whose inner diametre is equal to the outer diametre of the housing. For rigid connection of the holder and the radial guide there are three reinforcing members. The pointer consists of an arrow, a neck and a cone. The neck of the pointer moves on holes in the radial channel. The cone with cut off chords is pressed in the rear groove. The pointer is fixed in the radial groove by passing the cone in the mounting opening at the beginning of the guide channel. |
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Thin-film pressure sensor has a detecting element and a coupling nut. A cylindrical housing with switching elements partially lies inside the coupling nut. The sensor also has a cable inlet, a jumper cable and a bottom threaded bushing on the lateral surface of which there is a connecting pipe with a hole which lies at an acute angle b to the housing, where the said bushing is on the cylindrical housing. The connecting pipe is partially or completely made in form of a local or gradual thickening of the wall of the bushing. In the hole of the connecting pipe, in the region of its thickening on the side of the inner cavity, there is an expanding area in which there are jumper cable fastening elements. The cylindrical housing is sealed on one side to the face with the terminal block and on the other side with the detecting element. The hole in the connecting pipe lies at an angle b to the longitudinal axis of the sensor, which is defined by a corresponding relationship. The jumper cable is fastened on the flat surface of a hexagonal coupling nut with minimum allowable radius of curvature and heat-compensation sections of the wire of the jumper cable. |
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Device for assembling and dismantling a probe has at least one valve housing which has a ball valve with an opening designed for moving the probe during assembling and dismantling. The device has an extractor designed for entering the inner instrument. The housing of the valve is joined to an access pipe. The inner instrument is designed for holding the outer part of the probe with possibility of releasing and for its control using holding apparatus. When in the fixed position, the holding apparatus holds the probe in the access pipe and in when in an open position, it facilitates longitudinal displacement of the probe in that pipe. The probe is detachably connected to the access pipe through a circular row of clamping apparatus which are made with possibility of movement between the inner and outer holding position in the radial direction of the release position. |
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Excess pressure sensor has a housing in which there are two linked cavities lying one above the other with separation and compensation membrane, a strain gauge electrically connected to an electronic unit through pressure seals. One of the cavities is linked to the detecting element of the strain gauge and is filled with low-compressible dielectric liquid. Also between the cavities there are profiled support surfaces for the membranes, bent towards each other, and a through-opening which is covered by on the side of the lower cavity by the compensation membrane which is pressed to the support surface by given excess pressure inside the volume under it. The separation membrane in the upper cavity, which receives the converted pressure, lies in a neutral position. |
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Pressure gauge with hydraulic pressure transmission Invention concerns pressure gauges with hydraulic pressure transmission, particularly for using in high temperatures. A pressure gauge includes a sensor unit (1) with a sensing body (3) which contains a measuring cell chamber (6) wherein there is a pressure measurement cell (5) provided. Said pressure measurement cell (5) can be pressurised through the first hydraulic chain filled with a transferring liquid, and a transferring unit for pressure transfer to the first hydraulic chain, and the transferring unit (2) has a second hydraulic chain filled with the transferring liquid that runs from a working membrane (12) through the transferring body (10) to the transferring membrane (13) which is tightly fixed on the transferring body (10); and the sensing body (3) is sealed to the transferring body, while the transferring membrane (13) connects the first hydraulic chain thereto, so pressure of the second hydraulic chain through the transferring membrane can be transferred to the first hydraulic chain. |
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Excess pressure signalizer with pressurized contact chamber Invention relates to instrument making and can be used in pressure control systems to generate control signal when controlled parametre reaches preset value. Proposed signalizer comprises casing with pressure feed branch pipe and flapping membrane attached inside said casing. Note here that said casing, branch pipe, membrane and cover are arranged on common axis. Said cover sitting in the casing accommodates movable bush screwed therein and furnished with coaxially arranged glass cylindrical insulator. The latter houses the sleeve moving via the cover internal thread in tuning the signalizer. There is a current conductor, passed through said sleeve and having a terminal on its end face to interact with the separating membrane center when signalizer operates. Said current conductor is arranged in pressurized contact chamber. Note here that pressurized chamber inner space is pumped out via axial bore made in said current conductor and made tight by welding up the sleeve and current conductor. Note also that separating membrane is arranged between flapping membrane and terminal. In turning, separating membrane displaces relative to flapping membrane surface. Note that cover has a hole communicating flapping membrane inner surface and separating membrane outer surface with ambient air pressure. |
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Method for creation of pressure difference and device for its realisation Invention is related to method for creation of gas mixture pressure drop, and also to device for its realisation, and may be used for instance to perform tests on detection of error in different facilities of pressure difference measurement, also for their check-up, graduation and calibration. Suggested method is realised in the following manner. Measurement reservoir V1 is combined with both cavities of pressure difference measurement facility, measurement reservoir is filled up to initial pressure P1, one of pressure measurement facility cavity is isolated from measurement reservoir, dosing reservoir is filled once to pressure P2, permanent gas temperature is provided by balancing of initial temperature of working gas mixture in measurement and dosing V2 reservoirs with ambient air temperature, dosing reservoir is once connected to measurement one, and pressure balancing is expected in measurement and dosing reservoir. Device for method realisation includes measurement V1 and dosing V2 reservoirs of calibrated volumes, valves and connecting pipelines, which connect these reservoirs to each other and to pumping system to pressure source, cavities of pressure difference measurement facility, and manometre for measurement of initial pressure in reservoirs, which differs by the fact that additional elements are introduced in it - valve and connecting pipeline for connection of pressure difference measurement facility to measurement reservoir, measurement and dosing reservoir and other mentioned elements of device included into combined volumes are made of materials with high heat conductivity, besides shapes and dimensions of mentioned elements are selected based on condition for provision of quite fast balancing of initial temperature of working gas mixture with ambient air temperature. In order to reduce effect of adsorption-desorption processes that might result in variation of initial pressure in cavity of pressure difference measurement facility, additional buffer reservoir may be connected to this cavity. |
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Device for generating multi-channel output signal Invention relates to multi-channel decoding and particularly where there are at least two transmission channels. The device for generating a multi-channel output signal compensates for the centre channel so as to obtain improved main channels for restoration of left-sided output channels or right-sided output channels. The device comprises a channel compensation calculator which uses information related to the initial centre channel, which is available in the decoder, a coupler for coupling the transmission channel with the compensation channel, as well as a restorer for generating a multi-channel output signal. As a result of compensating the centre channel, the channel restorer (26) does not only use different main channels to restore the centre channel, but also uses main channels, different from transmission channels, to restore left and right sided output channels, which are under reduced or even completely neutralised effect of the initial centre channel. |
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Pressure sensor with external heater Present invention relates to pressure/vacuum sensors for use in various applications with high degree of purity. The sensor comprises a connector, case, sensor unit, external heater, placed such that it can heat the sensor unit, and a detachable connector unit, which has an inlet and outlet. The inlet is connected to the connector of the sensor. In some versions the sensor unit comprises a detector element made from brittle material, and no filling fluid medium is used in the detecting element. In the other version the invention comprises a set, which receives non-heated high purity vacuum sensors for use with heating. The set comprises a connector unit and a heater unit, which is connected to the connector unit. The heater unit comprises a heater jacket, which can be attached to the outer surface of the sensor unit. The heater jacket comprises a temperature sensitive element, connected to the connector unit. The connector unit can also include one or more indicators. |
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Interface with temperature regulation for interfacing with processing installation Present invention relates to field devices, as well as to interfaces for interfacing a field device and a processing installation. A field device is connected to a process installation using at least one interface element for interfacing with the process installation. The interface element can be a flange of the field device, a collector or a flange of the process installation. The interface element is fitted with a temperature sensor and apparatus for receiving a heat source. In one version of the invention the heat source is one or more electric heaters. In the other version the heat source is a line for heat-transfer fluid medium, passing through the interface element. A controller is connected to the temperature sensor and can regulate heat applied to the interface element based on the temperature of the latter, measured using the temperature sensor. |
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Source-controlled multi-mode wideband codec is suggested with variable rate in bits, having operation mode that provides possibility of interaction with adaptive multi-rate wideband codec, at that suggested codec provides for at least one coding mode with full rate, which provides for possibility of interaction having the first structure of bits distribution based on one of codec coding types, and at least one type of coding by means of comfort noise generation for coding of inactive speech frame, having the second structure of bits distribution based on type of coding of pause descriptor renewal frames by codec. Methods are also suggested for digital coding of sound with application of source-controlled codec for interaction with codec and transformation of codec signal frame. |
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Pressure measuring sensor-relay Invention relates to instrument engineering, in particular to devices converting movement of sensing elements caused by gas or fluid impact into electric signals. Pressure measuring sensor-relay comprises an electronic unit and a measuring unit made as upper and lower bases with a feeding connector in which a sensing element with rigid centre in the form of metal convoluted diaphragm is fixed. Loose plates with concentric bulges and dimples identical to the diaphragm riffles are set between the upper base and the diaphragm and between the lower base and the diaphragm. |
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Manometer pressure sensor for use in hazardous conditions Invention can be used to measure pressure in hazardous conditions. Methods and devices for manometer pressure perception using a manometer pressure sensor that comprises a casing and a manometer pressure sensing element including first pressure inlet and second pressure inlet. The first pressure inlet is connected to the atmospheric pressure. The second pressure inlet is connected to the inner section of the explosion-proof device with the help of fluid medium in the flame arrester placed in the sensor casing. |
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Threshold data unit of pressure Invention can be applied in hydraulic and gas systems with overload pressures considerably exceeding working pressure. Threshold data unit of pressure contains case, immobile adjustable contacts and sensitive body interreacting through rod and spring with the mobile current-carrying contact. On rod the groove is executed. The mobile current-carrying contact is disposed on spin axis supplied with the lever, rigidly anchored on it with possibility of introduction of the lever in a groove of the rod providing transformation of progress of sensitive body in circumrotatory motion of the mobile current-carrying contact. The sensitive organ is executed in the form of piston drawn in by spring with flange and stage pusher, and the pusher step is executed on the length providing possibility of travel of the piston within admissible squeezing of its drawing in spring. In a piston body the sealing device isolating a vacuity with the mobile current-carrying contact from a working environment, and between a flange of the piston and the case - an additional sealing device is erected. The spring which is drawing in the piston, is chosen with effort, equivalent to an operation threshold. Transmission of interaction of sensitive organ with the mobile current-carrying contact is carried out through stage pusher. |
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Present invention pertains to measuring technology, and more specifically to manometers with an alarm unit, in which the pressure sensitive element is a tube Burdon spring. The manometer contains indicators of maximum and minimum permissible values of the pressure of the medium. The indicators comprise a single hermetic contact and magnet guide, moved using the guide, located on the pointer of the device. The device employs hermetic contacts in form of two-channel switches. |
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High-temperature pressure sensor unit Present invention pertains to process sensors, used in systems for controlling and monitoring manufacturing processes. The invention particularly relates to sensors which measure process conditions in high-temperature media. The pressure sensor unit for measuring pressure of process fluids (104) comprises a unit (120) of insulating membrane. The pressure sensitive element (130) is put at a distance from the unit (120) of insulating membrane, so as to provide for heat insulation. Pipe (122) runs from unit (120) of insulating membrane to the pressure sensitive element (130) and is designed for carrying an insulating filling fluid. The support of the sensor joins the pressure sensitive element of the pressure sensor to the unit of insulating membrane so as to join the insulated cavity of the unit of insulating membrane and the pressure sensitive element. |
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Invention can be applied in various manufacturing industries of products containing two interacting elements one of which is hard, and another is elastic. Product is connected to measuring (hydraulic) and signal (electric) circuits of the device. For this purpose the product is attached through electric-to-hydraulic pressure transducer (EHPT) and the pipeline to hydraulic ram containing technological fluid. To connect the product to signal circuit, electric circuit is looped with one terminal directly on hard component and with the other terminal connected to EHPT core on elastic component. Transducer contact bar is reset. Electric circuit is looped and contact is registered with the indicator. Then hydraulic ram piston actuates pressure of environment delivered to EHPT cavity. As soon as elastic component detaches from the bar under pressure, electric circuit is interrupted, and the indicator generates proper signal. |
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Pressure and temperature pickup relay Invention relates to instrument making and can be used in pressure and temperature control systems as a switching device generating an electrical signal in response to the controlled parameter reaching of a preset value. The pressure and temperature relay pickup comprises a casing housing an angular lever, its one arm being acted upon, via a rod on one side, by a bellows sensitive system and on the other side, by a range spring. The angular lever other arm is arranged to act on the switcher. The return zone adjustment device is made up of U-shape bracket accommodating a screwed-in threaded sleeve with a rod. The rod top end is linked with the extension spring, while its lower part slot receives the angular lever end. |
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Apparatus comprises a case wherein a substrate is disposed having a sensing element and electric leads. The case has a first cavity, enclosing said sensing element and communicating with a first pressure inlet channel, a second cavity, being hermetically separated from the first cavity and enclosing at least said electric leads, and a third cavity, being hermetically separated from the first and second ones and communicating with a second pressure inlet channel. The case consists of a first case-shaped part and a second one. In the area of mutual adjustment between the first and the second case-shaped parts there is a sealing hermetically separating the first cavity of the case from the second one. The sealing has a circular portion disposed in the area of mutual abutment between the first and the second case-shaped parts, and an inner portion providing a strip-type connection between the opposite sides of this circular portion and sealing an intermediate portion at the joint between the strip and a partition that is provided in the second case-shaped part and separates the first cavity of the case from the second one. |
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Air pressure measurement device Air pressure measurement device is a barometer containing measuring unit and absolute reference scale with indication element, supplied additionally with a reduced scale with a scale factor equal to that of the absolute scale. Reduced scale zero is set at the absolute scale magnitude corresponding to the Standard Atmosphere pressure value at the altitude of barometer location. Additionally, the reduced scale is can be shifted against the absolute scale in the direction of indication element of the device. |
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Pressure measuring transducer unit with steady leakage to sensor casing Invention pertains to the measuring unit of a pressure transducer with a steady leakage to the sensor casing. The pressure unit (200) consists of assembly (202) of sensors with pipes (210, 212), running from pressure sensor (204) to insulator elements (206, 208) of the fluid media. The pressure sensor is located in the cavity (216) in the casing (214) of the unit. The casing of the unit consists of support elements (218, 220), joined with insulator elements of the fluid media, so as to provide for a barrier for draining fluid media in the cavity. Inlet holes (230, 232) with threads on the outer surface of the lower part of the casing of the unit connect the fluid media to the insulator elements of the fluid media through ducts (236, 238) in the casing of the unit. |
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Pressure relay comprises housing, diaphragm, and lid arranged at a single axis. The housing is made of a rotation body. The lid is provided with outer bushing that receives the inner bushing provided with a glass insulator. The conductor made of a hollow rod passes through the inner bushing. The contact provided at the face of the rod cooperates with the surface of the diaphragm when the relay is set in operation. The position of the contact is determined by the separating diaphragm whose peripheral part is secured to the lid. The central part of the diaphragm is in a contact with the face of the thread stop made of a bushing. The space of the separating diaphragm together with the contact inside it is evacuated through the axial opening in the conducting rod and is sealed by means of welding. |
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Air pressure gage is shaped into a part of sphere (1) whose axis (2) is set along the flow and comprises central opening (3) and peripheral receiving openings (4)-(7) for measuring direction and value of the gas flow and receiving openings (8)-(11) for measuring Mach number and static pressure arranged in the face surface of the receiver. The receiver has disk (12) that abuts against the bottom face surface. The area of the disk exceeds the area of the bottom face surface, and the receiving openings for measuring the Mach number and static pressure are made in the surface of the disk. |
Another patent 2528517.