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本帖最后由 zhangfc 于 2015-6-26 19:16 编辑 ! V c- v3 L- S2 T- c
让梦飞翔 发表于 2015-6-26 16:58 
$ a: y* ^/ r1 T/ D还没查到哪里有的买?
' o) g; x5 d/ }! Q这个东西,我们实验室有。好像从顺德商检局或质监局买的。; U" u# W5 P) p9 Z3 z! h9 G
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这玩意只能测220V以上的,120V左右的测不了。- n6 b2 ~6 }$ ~' N3 b
DSH-0716
, S2 [3 G [/ r/ WIf the relevant standard does not contain contradictory requirements, a voltage probe
- N, u' k8 p6 b8 n: |8 E3 S7 ]having an input impedance of 100 MΩ or greater in parallel with an input capacitance of! z& U9 s( |3 G; a7 m
25 pF or less, shall be used for this test.: D5 c) {0 m7 S
For other (automatic) equipment with special measurement techniques equivalent2 |3 O; v- }! `& o0 G) N; m
measures shall be taken to ensure comparable results.
4 i0 E3 \) ~" B) RExplanatory Notes:
9 `$ [! v. D8 G# YThis issue was raised at the 2008 CTL meeting after discussing the proficiency testing
+ J$ Y9 u( b, U! ]1 K; I( Qprogram on plug discharge 2007/2008. Participants used several different probe
. I; g- x: L+ w8 himpedances, which caused inconsistent results. |
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