5

Abstracts. No. 5, 2018 year
 
ABSTRACTS
Tyrtyshnyy V., Chebykina S. (e-mail: ex-pribor@list.ru)
New concept of explosion-proof instrument housing

New designs of enclosures for an explosion-proof device are suggested, which make it possible to use effectively modern types of explosion protection and more clearly distinguish responsibility between the manufacturer and the consumer for possible device defects.

Keywords: instrument housing, explosion-proof instrument, instrument compartments, the types of explosion protection.

Vasyukov S.A., Miseyuk O.I., Murzin I.A. (e-mail: sa_vasyukov@mail.ru)
Application of capacitive touch sensors in access control systems

Automatic access in automotive systems use a 125 kHz radio frequency exchange, a set of active antennas and sensors built into car door handles. This requires large material costs and therefore, as a relatively cheap alternative often use the radio channel of car alarm. During operation, the main alarm unit interacts with the radio label of the owner, and the automatic disarming occurs as the result of the radio exchange. The disarming distance is extremely unstable due to the noisiness of the radio channel and the non-circular antenna diagram of the label. Stabilization of distance may be solved by installing buttons or sensors on the surface of the car body, when disarming occurs after the label is detected when the button is pressed. However, their installation is difficult and spoils the appearance of the car. It is suggested to use capacitive sensors installed on the inner surface of the car body, which triggered by touching the door. The issues of deformation of the car door due to small force influence are considered. The results of modeling are presented, which confirm the efficiency of the sensor. The requirements for the construction of a capacitive sensor for installation on the inner surface of the car door are developed and an example of such a design is given.

Keywords: capacitive sensor, surface deformation, car alarm, radio channel, transceiver.

Dolgikh G.I., Dolgikh S.G., Plotnikov A.A., Shvets V.A. (e-mail: lotos_toi@mail.ru)
Laboratory test bench based on two Michelson interferometers

The paper describes the design and operation principle of a laboratory bench based on two Michelson interferometers and used for solving of various applied problems arising in the process of developing and creating laser-interference measuring devices.

Keywords: laboratory bench, Michelson interferometer, laser-interference measuring devices.

Nadezhdin I.S., Goryunov A.G. (e-mail: kun9@list.ru)
Control system for electrical discharge of water purification plant based on MPC controller

The aim of this study is development of a control system for electrical discharge of water purification plant. The MPC controller is proposed to be used to control this plant. The developed control system allows to reduce the energy costs for the process of water purification.

Keywords: electrical erosion, water purification, mathematical model, control system, MPC controller.

Tatarintsev V.G. (e-mail: fgup@omsketalon.ru)
Block-modular design of resistance thermometers and thermoelectric converters production JSC RESEARCH-AND-INDUSTRIAL ENTERPRISE ETALON

The article describes thermal resistance transducers type TSP (TSM) 1107 and thermoelectric converters type THA (THK) 1107, which have a block-modular design, which allows to cover a significant part of the nomenclature of their analogues produced by JSC NPP Etalon, as well as analogs products manufactured by other manufacturers.

Keywords: the resistance thermometers, thermoelectric converters, modular design, protective equipment, national system of standardization.

Solovyev V.G., Nurmukhametov R.R. (e-mail: office@vniir.org)
Pille-ISS dosimeter modernization for dose control at extravehicular activity

The description and technical characteristics of Pille-ISS dosimeter are presented. Pille-ISS is developed by Centre for Energy Research Hungarian Academy of Sciences (MTA EK) and Institute of Biomedical Problems Russian Academy of Sciences (IBMP RAS). The dosimeter is used for dose mapping in Russian segment in International Space Station (RS ISS) and personal dosimetry, including extravehicular activity (EVA). The modernization of the dosimeter sensor is proposed, which allows more fully to take into account the contribution of electrons to the total dose, and also to directly measure the normalized doses to the skin and lens of the astronaut's eye at EVA.

Keywords: Pille-ISS, extravehicular activity, radiation safety, dose loads, modernization

Ermakov K.S., Kransutskaya A.A., Tumakova E.V. (e-mail: ermakovks@bk.ru)
Measuring support and diagnostics of the operation of electromechanical systems using the phase-chronometric method

We need methods and tools for diagnostics that have a unified approach to metrological and information support for the objects under study at all stages of the life cycle, to effectively solve the problems that arise when creating and using electromechanical systems. Phase-chronometric information-metrological support of the operation of the electromechanical system opens fundamentally new possibilities for controlling the degradation of the structure, assessing the current technical condition and the residual resource. In this paper, the phase-chronometric approach is considered for the diagnosis of electromechanical systems using the example of an asynchronous electric motor. The possibility of using an experimental setup for carrying out laboratory work and student research within the educational process is shown. Spectral analysis of frequencies is carried out. The frequencies were obtained with the help of a phase-chronometric bench in order to reveal the characteristic frequencies that are not multiple to the given frequencies of rotation of the motor shaft.

Keywords: phase-chronometry, electromechanical systems, spectral analysis.

Bakhadirkhanov M.K., Abdurakhmanov B.A., Zikrillaev Kh.F. (e-mail: bahazeb@yandex.ru)
About the state of germanium in silicon under the conditions of low-temperature diffusion

A new method of doping so-called low-temperature diffusion in which can significantly increase the rate of diffusion of impurity atoms with the developed low-temperature diffusion doping and subsequent annealing can be obtained nano and microstructures SiGe on silicon. It is established that controlling the heating rate between stages and selecting options stages in the diffusion process can obtain Si1xGex solid solution with the desired thickness and composition. So in a rather thin surface region (up to d = 5 mkm) silicon can get a continuous solid solution Si1xGex with a value x = 0...1.

Keywords: low-temperature diffusion, silicon, nanostructure.

Zelikovskiy Z. (e-mail: zinovy.zelikovsky@gmail.com)
Correction for the inequality of resistances of the current leads of the standard resistors

Comparison of standard resistors with four clamps is usually performed using substitution and rearrangement methods in electric bridges. The paper analyzes these two comparison methods accounting for resistances of the current and potential leads of standard resistors. The formulas are given for computing the correction for unequal resistances of the leads and the conditions are determined for minimization of this correction. A new method is proposed for estimation of the correction in case when the resistances of the leads are unknown. It is concluded that the rearrangement method is preferable to the substitution method for comparison of standard resistors.

Keywords: wheatstone bridge, tetrabridge-comparator, four-clamp standard resistor, resistance of the current and potential leads, comparison of standard resistors, method of substitution, method of rearranging, correction for the inequality of resistances of the leads.

Akhobadze G.N. (e-mail: ahogur@ipu.ru)
Wave Measurement and Metrological Analysis of Nonelectric Quantities

The paper introduces a metrological assurance principle for wave measuring nonelectric quantities. Using wave measurements of process parameters, issues related to indirect determination of physical quantities are analyzed. Evaluation of measurement parameters is utilized to demonstrate the need for choosing an optimal circuit design in information signal conversion and recording. Expressions for definition of accuracy and other metrological characteristics of secondary devices measuring different process parameters are given. An approach to enhancing the measurement result with increasing the experiment number combined with secondary signal processing is proposed.

Keywords: accuracy, signal, converter, measurement, generator, deviation, accuracy rating.

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