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本帖最后由 zhangfc 于 2015-6-26 19:16 编辑 $ m9 K" \) z/ q0 ~8 n+ f
让梦飞翔 发表于 2015-6-26 16:58
' T* f+ p" Z7 C4 U K2 W- T( }还没查到哪里有的买?
" M' T M$ E5 D这个东西,我们实验室有。好像从顺德商检局或质监局买的。( C* x n6 B# o' |
* j2 e" J6 J( S+ c! c这玩意只能测220V以上的,120V左右的测不了。% \- q% H! e& r9 O1 G
DSH-0716
0 w/ h9 x3 Z/ l% KIf the relevant standard does not contain contradictory requirements, a voltage probe+ [4 ]5 C& a" u5 f
having an input impedance of 100 MΩ or greater in parallel with an input capacitance of* d7 w6 K+ x9 u- h
25 pF or less, shall be used for this test.
' O: ?# F, C/ m- P! ]2 EFor other (automatic) equipment with special measurement techniques equivalent
) R) p- C H- z! b/ O; Jmeasures shall be taken to ensure comparable results.4 Z& `3 `6 l! o# i7 |8 x' F
Explanatory Notes:1 Y6 o- w+ h4 t, z: g6 I
This issue was raised at the 2008 CTL meeting after discussing the proficiency testing
1 ~- ]- |" Z0 }1 {' dprogram on plug discharge 2007/2008. Participants used several different probe5 Q* W3 }0 r; l6 Q4 [
impedances, which caused inconsistent results. |
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