该方法不仅能够对电压闪变信号进行不失真地包络检波，而且能够精确地检测电压闪变信号的时间和包络信号的频率分量及其幅度。
This method not only can achieve the distortionless envelope detection of voltage flicker, but also can detect the time, frequency and amplitude of the signal accurately.
为使检波器获得高灵敏度、低失真度，对检波器内的电磁场进行了系统的研究。
In order to design a high accuracy geophone with high sensitivity and low-distortion, the electromagnetic field in a geophone is studied systematically.
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