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Modeling and Solution of Signal Oscillation Mechanism of the Multi-Coil Sensor

School of Electrical Engineering, Chongqing University, Chongqing 400044, China
School of Robot Engineering, Yangtze Normal University, Chongqing 408100, China
Operation and maintenance department, State Grid Chongqing Electric Power Company, Chongqing 400010, China
Author to whom correspondence should be addressed.
Sensors 2019, 19(16), 3563;
Received: 24 July 2019 / Revised: 12 August 2019 / Accepted: 13 August 2019 / Published: 15 August 2019
(This article belongs to the Special Issue Magnetic Sensors 2020)
PDF [7549 KB, uploaded 15 August 2019]


The multi-coil sensor consisting of a series of sub-coils provides a reliable way to avoid signal distortion from excitation field. Compared with conventional coil sensors, the multi-coil sensor exhibits more complex signal conversion performance, and the conventional equivalent circuit cannot reveal the possible attenuated oscillation, which seriously degrades the detection reliability. Based on a novel equivalent circuit model, this research investigates the causes of signal oscillation and proposes and validates an effective solution, which contributes to the signal transmission characteristics of multi-coil sensors for engineering applications. View Full-Text
Keywords: multi-coil; sensor; signal oscillation multi-coil; sensor; signal oscillation

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Huang, J.; Wang, H.; Fu, Z.; Fu, W. Modeling and Solution of Signal Oscillation Mechanism of the Multi-Coil Sensor. Sensors 2019, 19, 3563.

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