传感器利用注入结电流直接调频的半导体激光(LD)产生外差干涉，从而实现了干涉相位的线性检测。

A heterodyne interference is caused by a frequency modulation of a laser diode (LD) with a ramp injection current, and a linear phase detection is realized.

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这种叫做反向偏置的状态不利于电流穿越结。

This condition, known as reverse bias, is not conducive to current flow through the junction.

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镀层结构中有结金，消耗掉部分电流。

Coating structure with the knots gold, off part of the current.

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