MODEL OF STABILIZATION OF EDDY CURRENT DISPLACEMENT SENSORS

Novikov Valentin Nikolaevich, adviser of the Director of KB-1, Scientific-research Institute of physical measurements (8/10 Volodarskogo street, Penza, Russia), preobrazovatel@niifi.ru
Ulyanin Niкolaу Sergeevich, leading electronics engineer, Scientific-research Institute of physical measurements (8/10 Volodarskogo street, Penza, Russia), preobrazovatel@niifi.ru
Tsypin Boris Vulfovich, doctor of technical sciences, professor, deputy head of the sub-department of rocket and space and aviation instrumentation, Penza State University (40 Krasnaya street, Penza, Russia), cypin@yandex.ru

531.714.2.084.2:621.3.014.4

10.21685/2307-5538-2018-3-8

Background. The aim of the work is to develop a model of stabilization of eddy current displacement sensors as part of the circuit of the electric fundamental frequency generator by automatically adjusting the parameters of the device.
Materials and methods. Circuit solutions are worked out in the simulator PSpice (MicroCAP). On the basis of the experimental
data obtained, a model for stabilizing the parameters of eddy current displacement sensors by means of feedback in the generator circuit and automatic adjustment of the circuit parameters depending on the operating modes of the device is developed.
Results. Canonical schemes of frequency generators in relation to eddy current displacement sensors are considered. Limits of reliable start and operation of frequency generators are defined. A model of the frequency generator based on the differential circuit of the amplifier is developed.
Summary. Considered to improve frequency stability of the generator, ceteris paribus, improving the stability of running of generators in self-oscillation mode, adjustment of parameters of work in terms of external influencing factors. The modeling of the key points of the scheme is carried out.

eddy current sensor, a displacement oscillator, the stability of the launch, stability and automatic adjustment