UDC 620.179.14
DEVELOPMENT OF MATHEMATICAL MODEL OF THE OUTPUT SIGNAL FORMATION OF FERROPROBE UNDER SINGLE-POLARITY PULSE EXCITATION
V. S. Bezkorovainyi, Ph.D. (Tech.), Associate Professor, department, LNU. V. Dalya, Lugansk;
orcid.org/0000-0002-8737-7318, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Y. V. Livсov, postgraduate student, LNU. V. Dalya, Lugansk;
orcid.org/0000-0001-8747-7132, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
V. V. Yakovenko, Dr. Sc. (Tech.), full professor, Head of «Electromechanics» Department, LNU. V. Dalya, Lugansk;
orcid.org/0000-0003-3837-035X, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
N. A. Shatova, Ph.D. (Tech.),Associate Professor, Electromechanics department, LNU. V. Dalya, Lugansk;
orcid.org/0000-0001-8747-7132, orcid.org/0000-0002-3487-8191, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
The article considers a mathematical model of the forming output signal of ferromodulation sensor using single-polarity pulse excitation. One of the main requirements upon applying ferroprobes as sensors of mechanical quantities (rotational speed, gears integrity, etc.) is noise immunity in the presence of a high level of electromagnetic interference. The aim of the article is to obtain conversion function of the sensor that allows you to determine the parameters of output signal and their dependence on the amplitude of excitation pulse, as well as on magnetic and geometric parameters of the cores. The results of numerical experiments indicate the possibility to increase conversion coefficient of the sensor with unipolar pulsed excitation. As a result, we make the conclusion that unipolar pulsed excitation of ferromodulation sensor can significantly simplify the circuit of excitation generator and the circuit of signal processing.
Key words: sensor, core, magnetic permeability, field winding, differential equation, conversion function, winding, signal polarity.