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CTL中有这么一句话：
( ?) r9 F0 \$ `* [5 N( P Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”, “T”
, E$ E& i$ c1 V1 e5 J0 j* w( E and “ J”, premium grade, are recommended.
% x# ^- d7 b' O8 L Switching power supplies present an electrically noisy environment for test instrumentation. When
; }3 R: K. z7 {5 r! t4 O& J+ y measuring temperatures on and within switching power supplies, thermocouples are in the immediate
7 m: j6 J2 v& ~. [2 n vicinity or in intimate contact with component sources of the electrical noise. Type J thermocouples are
5 A: A% @9 r) H- [6 G, m" H7 \ made of material that is magnetic. Type K thermocouples are made of material that is slightly magnetic.
# Z# B' M O' H Type T thermocouples are made of non magnetic materials. As a result Type T thermocouples are! x- U4 m8 w) W. ]6 M
affected less by the high frequency magnetic fields present and give more accurate results.* [: O5 f- ?& P& v- Y1 v1 J" i# h. [
9 w1 g" F2 i Q8 F. {, L
也就是说实验室尽量要用T type热电偶?
) q. A+ N$ P( }$ j+ Q9 F |
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发表于 2017-3-9 16:01
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