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本帖最后由 zhangfc 于 2015-6-26 19:16 编辑
5 V Q* V" B; o) f/ {让梦飞翔 发表于 2015-6-26 16:58
+ R; Z: x* ~# C' A& h2 W还没查到哪里有的买? 2 L8 y- H* ]- b V
这个东西,我们实验室有。好像从顺德商检局或质监局买的。* |: b, M S# p+ Y2 B. \& e
# }. V7 l; p. S
这玩意只能测220V以上的,120V左右的测不了。: H* Y7 ~3 B' z/ m
DSH-0716- h9 Y, P" k$ [: `4 G: U
If the relevant standard does not contain contradictory requirements, a voltage probe( X9 w J! O i4 U1 c, s
having an input impedance of 100 MΩ or greater in parallel with an input capacitance of; P5 `% J' X. h% r- a" t3 Q
25 pF or less, shall be used for this test." h8 X$ f1 F# q3 O2 J& g
For other (automatic) equipment with special measurement techniques equivalent
9 P5 o+ b4 K, jmeasures shall be taken to ensure comparable results.
. e6 h; t7 x/ C6 @Explanatory Notes:
: @9 v" U/ z6 }. r' l% q+ bThis issue was raised at the 2008 CTL meeting after discussing the proficiency testing! o! r1 o6 z/ c& e/ z
program on plug discharge 2007/2008. Participants used several different probe
# H7 w2 ]7 I9 h# ~. b% z8 e! w& Zimpedances, which caused inconsistent results. |
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