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an pei biao tou nei zu de jian yi ce liang fa
Author(s): 
Pages: 41
Year: Issue:  3
Journal: Family Electronics

Keyword:  表头内阻直接测量万用表电阻档线路多圈电位器简易测量电流档读数流值设计表;
Abstract: <正> 在业余设计表头线路时,需知道表头的内阻,由于大多数表头上没有标注这个参数,因此,需要对该内阻进行测量。但是,测量表头内阻时,一般不允许用万用表电阻档直接测量。若用万用表直接测量表头的内阻,常因表头内阻较小,稍不留意就会损伤、甚至烧坏表头,同时
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