|
|
CTL中有这么一句话：- }; W. B) B3 O9 e; s
Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”, “T”; x' q7 }5 w9 B* |7 L
and “ J”, premium grade, are recommended.
) K& j$ \' g+ F% @% x( d8 HSwitching power supplies present an electrically noisy environment for test instrumentation. When
' P7 Z! I9 y& i9 |3 q) c- Mmeasuring temperatures on and within switching power supplies, thermocouples are in the immediate, o+ `! `. A" t8 p
vicinity or in intimate contact with component sources of the electrical noise. Type J thermocouples are
0 S& F1 a$ X: m5 a- z: {made of material that is magnetic. Type K thermocouples are made of material that is slightly magnetic.
! F: O9 a* T: C) T: V/ O; }Type T thermocouples are made of non magnetic materials. As a result Type T thermocouples are
" W% l' y) r, ~. W# r* f) maffected less by the high frequency magnetic fields present and give more accurate results.
8 S( i8 j: V! V! I* U) Y$ t" `7 p: q5 c/ k: u6 Q- K
也就是说实验室尽量要用T type热电偶? |
|
[复制链接]
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 )
窥视卡
雷达卡
发表于 2013-8-29 09:03
显身卡