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交流毫伏表和示波器测电压纹波哪个好 ,或者说测得的数值哪个更接近真实纹波的大小
当然是示波器好，纹波是指纹波的最大值
交流毫伏表应该显示的是有效值，而且对于纹波的显示也不直观
但是当用示波器测试纹波时，测试方法非常重要
要不然实际很小的纹波你在示波器中会得到很大的结果
