ubuntufan 发表于 2017-3-9 16:01

热电偶的选型

CTL中有这么一句话：
Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”, “T”
and “ J”, premium grade, are recommended.
Switching power supplies present an electrically noisy environment for test instrumentation. When
measuring temperatures on and within switching power supplies, thermocouples are in the immediate
vicinity or in intimate contact with component sources of the electrical noise. Type J thermocouples are
made of material that is magnetic. Type K thermocouples are made of material that is slightly magnetic.
Type T thermocouples are made of non magnetic materials. As a result Type T thermocouples are
affected less by the high frequency magnetic fields present and give more accurate results.

也就是说实验室尽量要用T type热电偶?

Nezof 发表于 2017-3-9 17:06

一般KJ较多，影响不是很大的

shijiaqingnian 发表于 2017-3-22 16:51

我们实验室是J型的

qiclaire 发表于 2017-4-25 14:27

见得比较多的是K和J型

软脚蟹 发表于 2017-11-23 15:02

开关电源的实验室确实用T的较多

ryan2014 发表于 2018-10-27 09:01

K和J型，哪个便宜用哪个:lol

叶大人 发表于 2020-7-11 09:45

家电实验室一般用K、J型号的
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