特集論文
アレイ型TMR磁気センサモジュールによるリチウムイオン電池の漏洩電流検出
2017 年 137 巻 8 号 p. 481-486
詳細
2017 年 137 巻 8 号 p. 481-486
A TMR magnetic sensor array module with multi-channel synchronous detection ICs is proposed for detecting the extremely low leakage current in lithium-ion batteries. The sensor array consists of a multiple-element, highly sensitive, self-biased TMR magnetic sensor GIGS® using an SmCo thin-film magnet. The 10ch demonstration module was successfully detected a low current of less than 3.6 mA in a laminated lithium-ion battery. The module noise in an RF shielded room was about 44 nT/√Hz at 100 Hz.
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