Description
差模干扰：也称串模干扰，就是串联与信号源回路之中的干扰。它串联在信号源回路中，与被测信号相加后输入系统。产生差模干扰的因素主要有分布电容的静电耦合、空间的磁场耦合、长线传输的互感、50HZ的工频干扰，以及信号回路中元件的参数变化等。
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