light chopper

基本解释

A bandgap voltage reference based on chopper technology was used to enhance the output voltage precision of white-light LED driver.
使用斩波技术，减小了带隙基准源中运放的失调电压所引起的误差，提高了基准源的精度。
Using the optical chopper to modulate the detected light to make it related to the reference squarewave signal is a common method of locking phase detection of weak signals.
其中利用光学斩光器对被测光进行调制使其与方波参考信号相关是对微弱光信号进行锁相检测的一种常用方法。
The amplifier input is a voltage proportional to the photocurrent signal produced by a photodiode, which is irradiated by a modulated light beam at the same chopper frequency.
放大器输入为电压信号，与光敏二极管产生的光电流信号成比例。调制光柱以断路器同样的频率照射光敏二极管。