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本文介绍的是一种利用光路中声光器件的等幅驱动信号与多普勒信号中的交流分量同步计数法,直接测出流体的平均速度,而不必设置通常采用的多档滤波器。
This paper introduces a method of synchronizing the equal-amplitude drive signal and Doppler signal in the light path of an acousto-optic device to directly measure the average velocity of a fluid without setting the commonly used multi-stage filter.