|
|
CTL中有这么一句话：/ T+ \$ K- e3 |
Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”, “T”# `; B2 T( G$ L
and “ J”, premium grade, are recommended.
. S/ p6 M% U" K) W* W/ |6 }Switching power supplies present an electrically noisy environment for test instrumentation. When
! H, E: ]8 x' y2 g8 P W- y, v8 _measuring temperatures on and within switching power supplies, thermocouples are in the immediate3 }) Q' k- h/ ^ ]
vicinity or in intimate contact with component sources of the electrical noise. Type J thermocouples are& B; e- Z1 `9 n" f: L9 T' ]$ L5 e
made of material that is magnetic. Type K thermocouples are made of material that is slightly magnetic.; e' w" a* ~+ F' {4 H; H8 |
Type T thermocouples are made of non magnetic materials. As a result Type T thermocouples are' h/ x0 z0 n- V/ l! \3 D: H
affected less by the high frequency magnetic fields present and give more accurate results.
8 }3 b, @$ u7 k* N: L- K# G
& B" i) B I2 a1 V4 K3 h; ?' w) h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