There are a peak and six secondary peaks of AMF on the plane of contact plate and a peaked tent appeared on the mid-gap plane under eddy current field when current is zero.

 
  • 在電流過(guò)零時(shí),縱向磁場(chǎng)在觸頭片中心形成一個(gè)最高峰,在最高峰周?chē)纬?個(gè)次高峰;
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