标题: 热电偶的选型 [打印本页] 作者: ubuntufan 时间: 2017-3-9 16:01 标题: 热电偶的选型 CTL中有这么一句话：& n( I, l/ z; b0 O! K) J+ s
Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”, “T”; r( L3 {& X ?3 t) Z% K
and “ J”, premium grade, are recommended. - g' N1 Z3 W0 n, a% c Switching power supplies present an electrically noisy environment for test instrumentation. When2 M) r/ v0 j( R( N) @
measuring temperatures on and within switching power supplies, thermocouples are in the immediate & f9 k. u9 ?" w& \2 g P; H" m vicinity or in intimate contact with component sources of the electrical noise. Type J thermocouples are1 P, e1 C, v' G# h4 T2 w( U
made of material that is magnetic. Type K thermocouples are made of material that is slightly magnetic. % ^( c/ |' F+ _ Type T thermocouples are made of non magnetic materials. As a result Type T thermocouples are6 m3 J: _0 K ?- A
affected less by the high frequency magnetic fields present and give more accurate results., u _8 e( ]2 s
$ D9 s6 n1 M3 k4 T" h
也就是说实验室尽量要用T type热电偶? . ^/ I; O% K& y3 u8 s作者: Nezof 时间: 2017-3-9 17:06
一般KJ较多，影响不是很大的作者: shijiaqingnian 时间: 2017-3-22 16:51
我们实验室是J型的作者: qiclaire 时间: 2017-4-25 14:27
见得比较多的是K和J型作者: 软脚蟹 时间: 2017-11-23 15:02
开关电源的实验室确实用T的较多作者: ryan2014 时间: 2018-10-27 09:01
K和J型，哪个便宜用哪个作者: 叶大人 时间: 2020-7-11 09:45
家电实验室一般用K、J型号的
