... 改良投影 modified projection 调制光束 modulated light beam 调制信号 modulating signal ...
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time-modulated light beam 时间调制光束
phase modulated light beam 调相光束
phase-modulated light beam 调相光束
modulated beam of light 调变光束
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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。
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