Difference between revisions of "怎样考取低压电工证理论篇"

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怎样考取低压电工证理论篇 (view source)

Revision as of 10:14, 19 August 2024

148 bytes added ,  19 August
→‎辨异
== 辨异 ==
; 仪表
: 电动式 仪表由固定的线圈,可转动的<b>线圈</b>及转轴、游丝、指针、机械调零机构等组成.可直接用于交、直流测量,且精确度高.
: 电磁式 仪表由固定的线圈,可转动的<b>铁芯</b>及转轴、游丝、指针、机械调零机构等组成.可直接用于交、直流测量,且精确度高.
: 磁电式 仪表由固定的<b>永久磁铁</b>,可转动的<b>线圈</b>及转轴、游丝、指针、机械调零机构等组成.
 
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