阿Q吧 > 已知K型热电偶的测量端温度为300℃，冷端温度为20℃。查热电偶分度表得热电势：

已知K型热电偶的测量端温度为300℃，冷端温度为20℃。查热电偶分度表得热电势：

2025-03-28 18:36:10
推荐回答（1个）
回答1：

（1）选择B
（2）根据中间温度定律E(t,t0)=E(t,tn)+E(tn,to)可知
回路实际电势E(t,tn)=E(t,t0)-E(tn,to)=12.209mV-0.798mV＝11.411mV
故B是正确的

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