天气预报 > 其他 > 万用表的认识
万用表的认识
更新时间: 2020-09-18 00:00:00  

万用表又称为复用表、多用表、三用表、繁用表等,是电力电子等部门不可缺少的测量仪表,一般以测量电压、电流和电阻为主要目。万用表按显示方式分为指针万用表和数字万用表,是一种多功能、多量程的测量仪表,一般万用表可测量直流电流、直流电压、交流电流、交流电压、电阻和音频电平等,有的还可以测电容量、电感量及半导体的一些参数等。

关键词: 认识

万用表的认识相关经验

天气预报

最新推荐

页面:/news/view-2643907/ | 耗时:0.6909 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=2643907 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2643907 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2643907 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1112096,1085616,1042943,1104855,1055235,1111590,1093379,1084779,1067227,1077208,1060503,1086408,1092129,1093799,1073832,1089058,1047309,986890,1076199,1115621,1086232,1095724,1056384,1044565,1095137,1079978,1097823,1099075,1072837,1065773) ORDER BY field (ArticleID,1112096,1085616,1042943,1104855,1055235,1111590,1093379,1084779,1067227,1077208,1060503,1086408,1092129,1093799,1073832,1089058,1047309,986890,1076199,1115621,1086232,1095724,1056384,1044565,1095137,1079978,1097823,1099075,1072837,1065773)