discriminator

名词 discriminator:

1. a person who differentiates
   同义词：differentiator

dis.crim.i.na.tor

n.（名词）
One that discriminates.
鉴别者，辨别者
Electronics A device that converts a property of an input signal, such as frequency or phase, into an amplitude variation, depending on how the signal differs from a standard or reference signal.
【电子学】 鉴别器，鉴频器：一种将输入信号的某一特征，如频率或相位转变为幅度变化装置，其变化大小因信号与标准或参考信号的不同程度而异