MULTI-PARAMETER ELECTROMAGNETIC CONVERTER FOR CONTROL AND DIAGNOSTIC SYSTEMS

Keywords: spatially periodic field, electromagnetic transducer, magnetic permeability, specific electri-cal conductivity.

Abstract

The work presents the scientific and technical results of the study of the electromagnetic multi-parameter transducer for the cylindrical metal products parameters determining, whhich principle is based on the allocation of the amplitude and phase of the spatial harmonics of a nonuniform magnetic field presented in the form of a Fourier series.
The physic-mathematical model of an electromagnetic transducer with non-uniform distribution of an electromagnetic field for a conductor with a current located along the lateral surface of a cylindrical product at a distance d from the center of a metallic cylinder of radius a. The spatial problem of the distribution of a magnetic field variable in time is solved and expressions allowing calculating the functions for any spatial harmonic are obtained and it is possible to make a picture of the distribution of the field in any area (inside the product, between the product and conductor with current, as well as beyond this conductor).
Mathematical expressions are obtained to determine amplitude and phase of transducer’s signal n-th spatial harmonics, which are generated in the measuring windings located along the surface of the cylindrical object with the angular coordinate φ on a circle of radius d. Experiments have been carried out to confirm the adequacy of the transducer’s proposed model, which showed the difference between the calculated and experimentally obtained values of the EMF of the transducer output signal.

Author Biographies

Борис Митрофанович Горкунов, National Technical University “Kharkiv Polytechnic Institute”
doctor of technical sciences, professor
Сергей Геннадиевич Львов, National Technical University "Kharkiv Polytechnic Institute"
Candidate of Technical Sciences, Associate Professor
Николай Николаевич Сиренко, National Technical University "Kharkiv Polytechnic Institute"
Candidate of Technical Sciences, Professor
Шибан Тамер, National Technical University "Kharkiv Polytechnic Institute"
graduate student
Published
2019-04-19
How to Cite
Горкунов, Б., Львов, С., Сиренко, Н., & Тамер, Ш. (2019). MULTI-PARAMETER ELECTROMAGNETIC CONVERTER FOR CONTROL AND DIAGNOSTIC SYSTEMS. Electrotechnic and Computer Systems, (30(106), 218-225. https://doi.org/10.15276/eltecs.30.106.2019.23
Section
Design, Control and Diagnostics

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