Extended products quality control unit
FIELD: measurement equipment.
SUBSTANCE: device comprises a speed sensor, an electrode sensor and a voltage source. It is also fitted with a microcontroller, an information input and output device, a microampermeter, an adjustable inductance coil, a greasing device, a resistance and a key, and the electrode sensor is designed as a capacitor comprising two semi-cylinders isolated from each other. The key is connected to the microcontroller the outputs of which are connected to the voltage source, the adjustable inductance coil, the greasing device and to the information input and output device, and inputs to the speed sensor, the microampermeter and the information input and output device. The resistance, the condenser, the adjustable inductance coil, the voltage source and the microampermeter are connected in series. The voltage source is a high frequency voltage source.
EFFECT: improvement of efficiency and decrease of error of determination of quality of extended products.
2 cl, 1 dwg
The invention relates to the field of nondestructive testing, in particular to control the integrity of lengthy products such as electrical conductors, metal products, fiber optic lines and communication cables, and can be used in electrical engineering, electrical power generation, mining, construction and other fields.
A device for control of long products by conducting eddy current flaw detector, comprising series-connected AC generator, eddy current differential transducer of the transmission type, the high-frequency amplifier, an amplitude-phase detector, phase shifter, a constant current source and the solenoid (see RF patent for the invention №2397486, IPC8G01N 27/90, publ. 20.08.2010).
The disadvantage of this device is the design complexity (over 25 items), poor protection from interference and high uncertainty due to the inhomogeneity of the magnetic properties of the controlled product.
The closest to the claimed technical solution is a device for control of faults in the insulation of the wire, comprising a speed sensor, a sensor electrode and a voltage source (see USSR author's certificate No. 1786414, G01N 27/68, publ. 07.01.1993 G.).
The disadvantage of the prototype is the low accuracy of the control of defects because of the peculiarities of Corot�tion of the discharge in the sensor-electrode and a low speed pulling.
The objective of the proposed technical solution is to increase the speed and quality control of long products, as well as reduce the error of determination of the defect.
The technical result is to control the homogeneity of the product throughout its duration.
The solution of a technical problem is achieved in that the device quality control of long products, including the speed sensor, the sensor electrode and the voltage source according to the invention is further provided with a microcontroller, the input device and information display, micro-ammeter, variable inductor, lubricating device, resistance and key, and the sensor electrode is made in the form of a capacitor of two isolated from each other of parts of the coupling, wherein the key is connected to the microcontroller, the outputs of which are connected to the voltage source, an adjustable inductor, the lubricating device and the input device and information display, and the inputs to the speed sensor, the microammeter and the input device and information display, and the resistance, capacitor, adjustable inductor, a voltage source and a microammeter connected in series.
As the source voltage using a source of high frequency voltage.
This device will allow Wops�city the reliability and quality checking lengthy products, and also reduce the accuracy of determining the extended defect of the product.
The invention is illustrated by drawings, which shows a block diagram of the device for quality control of long products.
The device consists of a key 1, a microcontroller 2, the input device and information display 3, the voltage source 4, an adjustable inductor 5, the resistor 6, the spreader 7, the speed sensor feed products 8, condenser 9 and microammeter 10.
Device quality control of long products works as follows.
Before you start, check the product disposed between the parts of the coupling capacitor 9. The total power carried by the key 1. In this case, through the input device and information display 3 to enter information about the product, which coupled with the information from the voltage source 4 and microammeter 10 allowed the microcontroller 2 to calibrate an adjustable inductor 5, so that the series-connected resistor 6, an adjustable inductor 5 and the capacitor 9 was in a state of stress response. After these operations are completed, the microcontroller 2 handed control signal to the lubricating device 7, which dispenser dielectric lubricating fluid that facilitates PR�velicianie investigational products through the parts of the coupling capacitor 9.
After switching started provorachivanija products through the parts of the coupling capacitor 9. The microcontroller 2 on the basis of the information of the voltage source 4 and microammeter 10 constantly monitored, the presence in the circuit of the voltage resonance. As soon as the operating mode of the device differed from the resonance, the microcontroller 2 stop feeding the product and signaled via the input device and information display 3) detection of the defect of the test object in the region between the parts of the coupling capacitor 9.
Speed sensor pulling items 8 through the parts of the coupling capacitor 9 generated control signal to the microcontroller 2, which regulated the speed of adding the dielectric lubricating fluid.
The use of the proposed device for the quality control of long products will allow for comparison with the prototype to perform fast and reliable quality control without the use of complex circuits and high voltage, which will significantly improve the efficiency and reduce the error in determining the quality of long products.
1. Device quality control of long products, including the speed sensor, the sensor electrode and the voltage source, characterized in that it further provided with a microcontroller, input device and display in�ormatie, a microammeter, adjustable inductor, lubricating device, resistance and key, and the sensor electrode is made in the form of a capacitor of two isolated from each other of parts of the coupling, wherein the key is connected to the microcontroller, the outputs of which are connected to the voltage source, an adjustable inductor, the lubricating device and the input device and information display, and the inputs to the speed sensor, the microammeter and the input device and information display, and the resistance, capacitor, adjustable inductor, a voltage source and a microammeter connected in series.
2. The device according to claim 1, characterized in that as the source voltage using a source of high frequency voltage.
FIELD: measurement equipment.
SUBSTANCE: measuring vessel with a capacitance sensor installed in the form of a multi-electrode flat-parallel air capacitor, to which a measurement capacitor of available capacity is connected, filled with the investigated gas, and the value of temperature and pressure are recorded. High DC voltage is supplied to the capacitance sensor installed in the measurement vessel and to the measurement capacitor of available capacity. The outlet voltage is measured on the measurement capacitor, and moisture content of the investigated gas is determined according to the temperature moisture characteristic of the sensor.
EFFECT: increased sensitivity.
2 cl, 6 dwg
FIELD: measurement equipment.
SUBSTANCE: sensor of the device represents a thick-walled tube-dowel 1, made of a dielectric plastic material, on the outer cylindrical surface of which there are current electrodes 2 and 3, split by plastic dielectric gaskets 4 and on the reverse side. The tube-dowel with electrodes is inserted into a hole 6, previously drilled in the solid medium, and is spaced in it with a screw 10 screwed into it. Gaskets 4 and 5 are installed perpendicularly in a current line 8, flowing in the solid medium. A current recorder 9 is connected between current electrodes 2 and 3. A rotary lever-indicator 11 is fixed on the upper part of the dielectric tube perpendicular to the split of the tube-dowel.
EFFECT: increased accuracy of current density measurement in local volumes of solid media.
2 cl, 1 dwg
FIELD: textiles, paper.
SUBSTANCE: invention relates to textile industry and can be used in control systems of transporting the textile material during technological processing in the form of a tow. The method of detecting a seam of the textile material processed in the form of a tow comprises placing the movable textile material inside the induced coil of the oscillating circuit, amplification and detection of the high frequency voltage at the output of the generator and forming while reducing voltage at the output of the amplifier-detector of the pulse of required duration for safe operation of the actuator. And the seam of the textile material is provided with a conductive label, the amplitude of high frequency voltage is set from the conditions of the required sensitivity at the output of the generator, the voltage is converted at the output of the amplifier-detector and it is compared with the driving voltage, and the resulting difference of voltage is integrated, and the voltage is applied at the output of the integrator to stabilise the amplitude of high frequency voltage at the output of the generator, and the integration process is interrupted for the period of the formed impulse action. The conductive label is used, for example, as a metallised thread, which is used for sewing the textile material pieces in the continuous web.
EFFECT: increase in reliability of detection of the seam of textile material processed in the form of a tow and providing automatic compensation of external disturbing effects.
2 cl, 1 dwg
FIELD: textiles, paper.
SUBSTANCE: invention relates to the field of engineering for light industry and can be used to create the systems for detecting metal particles in textile materials, in nonwoven substrate in production of synthetic leather, felt, etc. The method of detecting metal particles in the displaced fibrous material consists in placing the displaced fibrous material in the working area of induced coil of oscillating circuit in which high-frequency oscillations are created using the generator. Further, amplification and detection of high-frequency output voltage of the generator is carried out. At that at the output of the amplifier-detector the impulse of the required duration for reliable operation of the actuating mechanism is formed. The output voltage of the amplifier-detector is compared with driving voltage. The resulting voltage difference is integrated, and the voltage is applied at the output of the integrator to stabilise the amplitude of high-frequency voltage at the generator output, and the integration process is interrupted for the duration of the impulse formed.
EFFECT: increase in reliability of detection of metal particles in the displaced fibre material and providing automatic compensation of external disturbing actions.
FIELD: textiles, paper.
SUBSTANCE: invention relates to the field of engineering for light industry and can be used to create systems to detect metal particles in textile materials, in nonwoven substrate in production of synthetic leather, felt, etc. The method of detecting metal particles in the movable fibrous material consists in placing the movable fibrous material into the workspace of induced coil of the oscillating circuit in which using a generator the high-frequency oscillations are generated. Then, amplification and detection of high-frequency voltage at the output of the generator is carried out. And at the output of the amplifier-detector the impulse of the required duration is formed for safe operation of the actuator. From the conditions of the required sensitivity the amplitude of high-frequency voltage is set at the output of the generator, the voltage is converted at the output of the amplifier-detector and it is compared with the driving voltage. The obtained voltage difference is integrated and the voltage at the output of the integrator is used for stabilisation of the amplitude of high-frequency voltage at the output of the generator. And the process of integration is interrupted at the time of formation of the impulse for the time interval, the value of which is defined as a functional dependence on the linear velocity of the fibrous material, and the process of integration is renewed at the end of the pulse and the time interval of interruption of the integration process, and at the time of bringing the circuit into operation state the actuation of the actuator is blocked for the time interval, obviously longer than the duration of damped transitory processes in most inertial node of the circuit.
EFFECT: increase in reliability of detection of metal particles in the movable fibrous material and providing automatic compensation of external disturbing effects.
SUBSTANCE: method of determining chlorobenzene in natural and waste water using gas chromatography and equilibrium vapour analysis includes determining chlorobenzene on a chromatographic capitally column in a carrier gas current which is nitrogen; generating and detecting the investigated ions formed in a flame with a flame-ionisation detector. The method also includes preparing a basic solution using a more viscous ethylene glycol solvent, hence the basic solution is well preserved for 2 months at temperature in the range of -2°C to -10°C; preparing calibration solutions for chlorobenzene concentration in the range of 0.0003-0.02 mg/dm3; sample preparation, calibrating the chromatograph by perforating the vapour phase of the prepared concentrations; plotting a calibration curve; sample preparation for the analysed water samples; perforating the vapour phase into the evaporator of the chromatograph. The obtained data are processed using ChemStation software which comes in a set with the MAESTRO 7820A chromatographic kit, and qualitative identification and quantitative content of the determined substance is obtained.
EFFECT: improved consistency and accuracy of analysis, shorter duration of the method and easier analysis in environmental monitoring conditions.
6 tbl, 2 dwg
SUBSTANCE: system consists of two peristaltic pumps, a loop-containing injector, a flow amperometric cell with includes a biosensor, a potentiostat. As the biosensor, the electroanalytic system contains a lactate biosensor. The injector loop includes an accumulative column.
EFFECT: increase of selectivity and sensitivity of determination, reduction of the limit of lactate detection.
2 cl, 2 dwg, 1 tbl
FIELD: measurement equipment.
SUBSTANCE: scope of application: for carbon monoxide detection in air. Invention consists in the following: manufacturing method includes obtaining nanocrystalline wide gap semiconducting oxides MeO (SnO2, ZnO, In2O3), obtaining sols of quantum dots of narrow gap semiconductors CdX (X=Se, Te, S) and oxides impregnation with sols of quantum dots followed by drying for formation of heterocontacts MO/CdX.
EFFECT: providing possibility of decrease of semiconductive sensor materials temperature to the room temperature upon detection of carbon monoxide in air and providing high sensitivity and low energy consumption of sensor.
FIELD: instrumentation technology.
SUBSTANCE: change of control of gas mixtures with different preset concentrations of the controlled component on the sensor element of the gas analytical sensor is carried out in dynamic mode at constant and equal, equal to the predetermined, consumptions from different sources of control gas mixtures with different preset concentrations of the controlled component. Change of gas mixtures with different preset concentrations of the controlled component on the sensor element of the gas analytical sensor and achievement of stabilisation of the output signal of the sensor, corresponding to the level of concentration of the controlled component on the sensor element of the gas analytical sensor is provided at equal parameters of the control gas mixtures and for minimum time which is easily calculated and taken into account in determining the operation speed of the gas analytical sensor. This ensures accuracy of determining of the operation speed of the gas analytical sensor. Use of the dynamic mode of feeding the first gas mixture, as well as change of the first gas mixture to the second gas mixture during the testing of the gas analytical sensor enables to stabilise faster the predetermined concentration of the controlled component on the sensor element of the gas analytical sensor and thus to ensure the constancy of pressure and composition of gas mixtures on the sensor element of the sensor, which increases the accuracy of evaluation of its operation speed. With this mode of feeding the gas mixtures the performance data of the gas reducers on the sources of feeding the control gas mixtures remain dynamic and do not affect the process of feeding the stable gas mixture at program switches of the valves.
EFFECT: increase in reliability of determining the operation speed of the gas analytical sensor by feeding to the sensor element of the gas analytical sensor of control gas mixtures stable in composition and pressure in dynamic mode.
3 cl, 4 dwg
FIELD: veterinary medicine.
SUBSTANCE: strip of filter paper with the width of 20 mm is attached on the filter, mounted in the ventilation system of the test livestock building, for a period of 4 hours. 1% sterile glucose solution is prepared on physiological solution, which is used as a nutrient medium. The strip of filter paper is placed in 10 ml solution of glucose and thermostated at the temperature 37±1°C for 2 hours. Then the electric conductivity of the solution is measured. The conclusion about the necessity in sanitary-hygienic processing of livestock buildings is made when the electric conductivity value is 287.3 mcS/cm, which corresponds to maximum allowable concentration of microorganisms in the air of the working area or below.
EFFECT: invention enables to determine reliably the microbiological environment in the buildings and to make the prompt conclusion about the necessity of sanitary-hygienic processing of livestock buildings.
FIELD: thermal and nuclear power stations; meter calibration in extremely pure water of condensate type and power unit feedwater.
SUBSTANCE: for pH-meter calibration ammonia whose concentration varies by 1.5 - 2 times is dosed in working medium. Electric conductivity and temperature of working-medium H-cationized sample are measured. Measurement results are processed in computer with aid of set of equations characterizing ionic equilibrium in source sample and H-cationized samples. Calculated pH value is compared with measurement results.
EFFECT: enhanced precision and reliability of meter calibration in extremely pure waters.
1 cl, 1 dwg, 1 tbl
FIELD: mechanical engineering.
SUBSTANCE: device has housing provided with three cylinders made of a dielectric material. The housing receives the cylinder with a piston.
EFFECT: improved design.
FIELD: agriculture and soil science; evaluating water-physics properties of soils.
SUBSTANCE: porous probe communicating with water-filled tank is driven into soil, cathode is inserted in probe and anode, in soil. Voltage is applied to electrodes from dc power supply and soil moisture potential preventing water transfer from tank to soil is determined by measuring current between them.
EFFECT: reduced single measurement time due to eliminating escape of significant amount of water from measuring instrument.
1 cl, 1 ex
FIELD: investigating or analyzing materials.
SUBSTANCE: device comprises measuring section made of dielectric pipe whose inner diameter is equal to the inner diameter of the pipeline, two electrodes which form a capacitor made of segments of the dielectric pipe, mounted diametrically opposite, and connected with the electronic unit. The electronic unit has a self-excited oscillator whose frequency-generating circuit includes the capacitor and device for processing frequencies with the indicator. The electrodes are arranged inside the dielectric pipe of the measuring section. The transverse length of each electrode can be greater than half inner diameter of the pipeline. The longitudinal length of each electrode may not exceed half length of the dielectric pipe.
EFFECT: enhanced sensitivity.
2 cl, 1 dwg
FIELD: analytical methods.
SUBSTANCE: electrodes of piezoelectric resonator are modified with menthol phenyl salicylate vaseline oil, recommended solvent being toluene, modifier film weight 5-20 μg, drying temperature 20-35°C, and drying time 40-48 h. The following gains in aromatic amine determination sensitivity are thus obtained: for aniline, from 282 to 368 Hz-m3/g; for o-tolidine, from 68 to 78 Hz-m3/g; for 9-nitroaniline, from 136 to 125 Hz-m3/g. Reductions in relative deviation are, respectively, 6.0 to 3.2%, 7.0 to 3.6%, and 6.0 to 4.3%, sensor response time is decreased by 5 times, regeneration time is decreased by 24 times, and aniline detection threshold is lowered from 0.84 to 0.11 Δ, g/m3.
EFFECT: increased sensitivity and accuracy of determination.
1 dwg, 2 tbl, 11 ex
FIELD: scanning probe microscopy.
SUBSTANCE: scanning probe microscope has sample holder, first platform, onto which case is mounted, and piezoscanner. Elastic membrane is placed between case and piezoscanner. There is unit for preliminary bringing sample and probe together, as well as housing and probe fixer. The second platform is introduced into the scanner, onto which unit for preliminary bringing sample and probe together. Base and sample holder is put together with cup by means of first hole and the second hole. Second hole is connected with inert gas source. Cup is made of chemically-proof material. Case is made to be air-proof. Locker of the probe is fastened to piezoscanner. Housing is mounted onto cup for interaction with airtight case. Aerostatic plain bearing is formed between housing and airtight case. Sample holder, cup, housing, airtight case, elastic membrane and probe locker form all together closed cavity of electrochemical cell.
EFFECT: simplified exploitation; widened operational abilities.
11 cl, 7 dwg
FIELD: measurement technology.
SUBSTANCE: detector can be used in concentration meters as positive and negative aeroiones. Aeroion concentration detector has bias voltage source and receiving probe. Detector additionally has two resistors connected in series, auxiliary electrode and electrometer for measuring output voltage that is proportional to measured concentration of aeroiones. Receiving probe has to be volumetric electrode made of metal grid inside which the auxiliary electrode is located. The latter is isolated from volumetric electrode.
EFFECT: improved functional abilities.
FIELD: mining industry.
SUBSTANCE: method includes mounting a sample between panels of capacitor converter of electromagnetic radiation, deforming thereof in loading device. Loading device has oppositely mounted in metallic body of loading device metallic rods, force detector and registration system. Compressing external force is applied to sample from first metallic rod through force detector body and it is destroyed due to reaction force of conic indenter of second metallic rod. Metallic body of loading device is a first plate of capacitor converter, second plate - second metallic rod, mounted in bushing of dielectric material, placed in metallic body. Stand has screen, frame, capacitor converter, loading device, force detector and registration system. Between ends of metallic rods force detector and sample are positioned. Second metallic rod is provided with conic indenter.
EFFECT: higher efficiency.
2 cl, 2 dwg
FIELD: analytical chemistry.
SUBSTANCE: sensor can be used for inspecting level of oxidants and antioxidants in liquid. Device for detecting absence or presence of reduction-oxidation reactive-capable analyzed matter in water sample has electro-chemical cell with sensor chamber, first and second electrodes, hole for introducing sample into sensor chamber and reagent placed inside sensor chamber. Electro-chemical cell is designed to be removable after usage in any unique experiment. Reagent is capable of subjecting to reduction-oxidation reaction directly with analyzed matter to generate electric signal indicating absence or presence of analyzed matter. Method of detecting level of reduction-oxidation reaction-capable matter is also proposed as well as method of measurement of sulfur dioxide in sample of vine and method of producing device mentioned before.
EFFECT: improved precision.
36 cl, 4 dwg
FIELD: measurement technology; criminology.
SUBSTANCE: main and ancillary electrodes are installed before procedure of getting imprints of dust trace. Voltage applied to main and ancillary electrodes is regulated within wide high-voltage range. Device for getting imprints of dust traces has electric charge storage, main and ancillary electrodes and connecting cable of ancillary electrode, mechanical unit driven into action by muscle force of expert. Mechanical unit is connected with mechanical energy/electric energy converter which is connected with electric charge storage. Main electrode is coated with insulating dielectric film and connected with electric charge storage.
EFFECT: improved exploitation characteristics; independence on external electric power sources; reduced chance of electric current shock.
2 cl, 2 dwg