If the signal frequency to be measured is low, wide strobe gate is required for high measurement precision.
当被测信号频率较低时，需要很宽的选通门才能得到较高的测量精度。
The mix-lookin detection technique for high frequency signal measurement with low frequency look-in amplifier is presented.
本文提出一种利用低频锁相放大器测量高频信号的混频-锁相检测技术。
The mix-lookin detection technique for high frequency signal measurement with low frequency look-in amplifier is presented.
本文提出一种利用低频锁相放大器测量高频信号的混频-锁相检测技术。
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