K型热电偶分度表上测量端温度为-0是什么意思?+0又是什么意思?

2025-03-15 17:51:38
推荐回答(4个)
回答1:

表示表上横排的十位数的温度是零上还是零下。测量端温度-050°C表示-50°C,热电动势=-1.889mV;测量端温度+050°C表示50°C,热电动势=2.022mV。

回答2:

我估计-0是从负方向到0,+0就是0到正数值,以前记得有做过这种题目,一般是都明确写了+0还是-0, 所以就没考虑是什么意思!

我理解的意思就是无限的从那一侧接近0°!

回答3:

首先要确定被测对象的温度范围,按分度表看,k型偶测温上限可达1300℃,长期使用一般在1000℃左右。热电偶的测量精度与分度关系不大,每种分度号都有其对应的精度等级。按国标一般分为三级,工业领域一般选用ⅱ级或ⅲ级即可。当然,也要看企业的工艺要求。此外,你还要确定热电偶保护管的材质以及整体尺寸。
一般选型的话这些基本足够,当然,如果想搞的详细些还是有很多其他方面因素。

回答4:

是冷端(参比端)在0度时,测到的测量端的温度。

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