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CTL中有这么一句话：
0 B" R/ [) [& U% V) O4 A' fThermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”, “T”6 D' N* p; F* e- T' w! {
and “ J”, premium grade, are recommended.
( m. r# C+ ~+ s3 s4 ?% JSwitching power supplies present an electrically noisy environment for test instrumentation. When; S4 z: \+ B( C$ |
measuring temperatures on and within switching power supplies, thermocouples are in the immediate
8 v/ M; d" H5 \9 ~" {+ g( S% D4 Bvicinity or in intimate contact with component sources of the electrical noise. Type J thermocouples are
1 t! N+ m9 X$ z+ Q2 b: omade of material that is magnetic. Type K thermocouples are made of material that is slightly magnetic.
; l7 w) V# T1 F4 w& w) _% DType T thermocouples are made of non magnetic materials. As a result Type T thermocouples are: W. V% D3 d, F; H- }
affected less by the high frequency magnetic fields present and give more accurate results. |* B/ \7 W, R; T8 |
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也就是说实验室尽量要用T type热电偶? |
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发表于 2013-8-29 09:03
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