safty-001 发表于 2014-3-28 17:45

请教各位大虾，EIA-364-70B下面这段怎么理解？与图示好像不一样

3.2.1.1.1 Thermocouples that are attached to metallic surfaces of current-carrying contacts shall
be oriented with the bimetal junction perpendicular to the direction of current flow to prevent
errors caused by voltage gradients when using direct current；see figure 5.

wu1321001109 发表于 2014-3-30 23:02

为了避免电流对热电偶测量的影响，注意将热电偶跟电流方向垂直，避免热电偶与电流方向平行
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