transducer

名词 transducer:

1. an electrical device that converts one form of energy into another

1. 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
2. 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。