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本帖最后由 zhangfc 于 2015-6-26 19:16 编辑
, J# R. T$ `! @让梦飞翔 发表于 2015-6-26 16:58 & K( E p% u! C: T
还没查到哪里有的买? # `. M8 s( G, `9 @+ p
这个东西,我们实验室有。好像从顺德商检局或质监局买的。" Y/ M7 g, m! f0 T& r
$ W$ z3 f) i' c: F7 ~这玩意只能测220V以上的,120V左右的测不了。+ \5 E- N) U( f. i
DSH-0716
$ C$ J' h- F, ^/ u- zIf the relevant standard does not contain contradictory requirements, a voltage probe: v; ^, H% S; M# x! f/ M
having an input impedance of 100 MΩ or greater in parallel with an input capacitance of; W$ O2 V; y$ A
25 pF or less, shall be used for this test.
& Z4 l! e' |( L' ]! rFor other (automatic) equipment with special measurement techniques equivalent
6 F! [ n1 z2 tmeasures shall be taken to ensure comparable results.
, o- c! @6 ]7 N: j6 L/ ]Explanatory Notes:
9 C* Q; U0 k" f2 f, hThis issue was raised at the 2008 CTL meeting after discussing the proficiency testing( f2 A4 S) j+ M3 H7 t
program on plug discharge 2007/2008. Participants used several different probe+ k, W* L- a( T5 D
impedances, which caused inconsistent results. |
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