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CTL中有这么一句话:& c# C1 i% E8 ]: I
Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”, “T”
8 c) x; M/ i+ ]and “ J”, premium grade, are recommended.
2 P8 [9 a( R/ u/ WSwitching power supplies present an electrically noisy environment for test instrumentation. When
5 I' T/ j' b3 V5 m/ Gmeasuring temperatures on and within switching power supplies, thermocouples are in the immediate
( z0 w. w. c6 G9 A+ [vicinity or in intimate contact with component sources of the electrical noise. Type J thermocouples are0 ~. b0 n% F; V% m6 t" ]4 ?
made of material that is magnetic. Type K thermocouples are made of material that is slightly magnetic.
/ _" D- |4 ~) Z1 s8 j/ k5 dType T thermocouples are made of non magnetic materials. As a result Type T thermocouples are
4 D8 G K: [, u! i! zaffected less by the high frequency magnetic fields present and give more accurate results.
* J, p) i" p4 W- F6 H; t
% f0 [, E% W, \% S- Y也就是说实验室尽量要用T type热电偶? |
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