接触电流︰小于等于2a。
利用钴基非晶薄带环形磁芯的巨磁阻抗效应研制了新型非接触电流传感器。
The novel non-contact type current sensor based on giant magneto-impedance (GMI) effect in Co-based amorphous ribbon toroidal core was studied.
方法：在人工唾液中体外模拟异种合金瞬间咬合接触时的回路，浸泡初记录各偶对的电位及15个瞬间接触电流值。
Methods The circuits of instantly different metallic contact were simulated in artificial saliva, and electrical potential of every couple and 15 currents of instant contact were measured.
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