

Optimization of the sensitivity of the magnetoimpedance sensor of small magnetic fields by methods of sequential approximation and swarm of particles
https://doi.org/10.32446/0368-1025it.2023-11-38-44
Abstract
The use of multiparametric optimization of an unknown discrete function in the development of applied solutions for physical systems is considered. Such optimization is practically implemented in real time using modern data transfer protocols at high speed and continuously increasing computing power. To optimize the sensitivity of a modern magnetic sensor based on high-frequency magnetoimpedance in ferromagnetic microconducts, an iterative method of global maximum search, the particle swarm algorithm, has been applied. The output signal of the sensor depends non-linearly on both the internal magnetic properties of the microcircuit and the excitation mode, which requires a certain calibration to establish optimal excitation parameters. The sensor output signals for various excitation parameters and external magnetic fields were measured using an automated installation. The results of the search for the global maximum by the sequential approximation method and the particle swarm method presented in the paper demonstrate the effectiveness of the search algorithm used, the particle swarm algorithm turned out to be the most effective, since it found the global maximum more accurately. With different excitation parameters, the algorithm has always determined the maximum sensitivity when varying the three main parameters of the excitation signal: frequency, amplitude and constant component. The results obtained can be applied in the development of highly sensitive intelligent magnetic sensors and systems based on them.
Keywords
About the Authors
N. A. YudanovRussian Federation
Nikolay A. Yudanov
Moscow
M. A. Nemirovich
Russian Federation
Mark A. Nemirovich
Moscow
M. A. Andreiko
Russian Federation
Maxim A. Andreiko
Moscow
D. P. Makhnovsky
United Kingdom
Dmitriy P. Makhnovsky
Plymouth
V. V. Rodionova
Russian Federation
Valeria V. Rodionova
Kaliningrad
L. V. Panina
Russian Federation
Larissa V. Panina
Moscow
Kaliningrad
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Review
For citations:
Yudanov N.A., Nemirovich M.A., Andreiko M.A., Makhnovsky D.P., Rodionova V.V., Panina L.V. Optimization of the sensitivity of the magnetoimpedance sensor of small magnetic fields by methods of sequential approximation and swarm of particles. Izmeritel`naya Tekhnika. 2023;(11):38-44. (In Russ.) https://doi.org/10.32446/0368-1025it.2023-11-38-44