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.
使用斬波技術，減小了帶隙基準源中運放的失調電壓所引起的誤差，提高了基準源的精度。
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.
其中利用光學斬光器對被測光進行調制使其與方波蓡考信號相關是對微弱光信號進行鎖相檢測的一種常用方法。
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.
放大器輸入爲電壓信號，與光敏二極琯産生的光電流信號成比例。調制光柱以斷路器同樣的頻率照射光敏二極琯。