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测量电解电容器,如果用指针式万用表,具体办法如下,以MF-47型表为例,如图: 测量之前先看看电容器的容量大小,再选择合适的档位。如果所测量容量在100微法以下,将档位拨至测量电阻档R*k。测量几百~1k微法以下,拨至R*100。测量1k微法以上,拨至R*10档。测量电解电容器与它的工作电压没有关系,容量越大指针向右摆动角度越大,如果指针数值为零且不归位,说明电容器则已击穿、短路。好的电容器测量时,指针应该迅速向右摆动,摆动角度越大,则容量越大,然后慢慢向左归位,最后停止不动,这时,表针越接近无穷大,说明电容器绝缘度越好,质量就越好。电阻值越小说明电容器漏电。