该衰减电路是一种降低静电计交流响应的低通滤波器，使我们可以准确地进行直流弱电流的测量。

A damping circuit is a type of low pass filter that reduces the electrometer's ac response so the low DC current can be measured accurately.

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对于这些应用来说，采用一种可变的衰减电路足以降低交流干扰，以便进行有意义的测量工作。

For these applications, a variable damping control may reduce the AC pickup enough to make meaningful measurements.

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