transducer

转换器,传感器

They use a bridge to measure the impedance of the transducer.

他们用电桥来测量传感器的阻抗。

A transducer designed for a given range of input voltages that produces a larger range of output voltages.

扩展器在某一给定范围的输入电压内产生较大输出电压的转换器