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交变信号变化量的采样,为我们提供了一种廉价高效地进行高度高精度数据采集的方法,本文将简要介绍其原理与实用电路。信号的幅值采样过程可描述为:
The sampling of the amount of change in the alternating signal provides us with a way to conduct a highly accurate and cost-effective data acquisition inexpensively and effectively. This article will briefly introduce its principles and practical circuits. The signal amplitude sampling process can be described as: