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CTL中有这么一句话：4 K' N' v1 j' |) r c2 R% e4 o
Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”, “T”
1 \9 S; Y$ u' G% D7 a and “ J”, premium grade, are recommended.
$ p: `6 }2 Q" H- U" j, ?7 _# O Switching power supplies present an electrically noisy environment for test instrumentation. When
F! _# {! ^* t B2 `+ l+ W measuring temperatures on and within switching power supplies, thermocouples are in the immediate
& s& }# p# ~& r) c, V/ ` vicinity or in intimate contact with component sources of the electrical noise. Type J thermocouples are4 W f2 |7 a5 w. v: V6 d
made of material that is magnetic. Type K thermocouples are made of material that is slightly magnetic.* H) i, y" |7 v1 x, b7 R
Type T thermocouples are made of non magnetic materials. As a result Type T thermocouples are
\/ [ f/ H; C; }0 m/ T affected less by the high frequency magnetic fields present and give more accurate results.% M; @4 y s. e! P0 o# O
) R; [0 l a, c 也就是说实验室尽量要用T type热电偶?
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