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本帖最后由 zhangfc 于 2015-6-26 19:16 编辑
0 |+ u( l- @( V& w8 B" P; C让梦飞翔 发表于 2015-6-26 16:58
: ?2 C+ K' h* x9 F还没查到哪里有的买? " O9 C" e3 {& R
这个东西,我们实验室有。好像从顺德商检局或质监局买的。* q- r: N7 O4 N- g6 a
2 r7 J) B* F$ s# ?这玩意只能测220V以上的,120V左右的测不了。. D/ g" f- B0 u3 l( V
DSH-07162 i0 M9 M6 [9 r+ ?3 d
If the relevant standard does not contain contradictory requirements, a voltage probe
% d* }3 S+ `* x9 V9 Dhaving an input impedance of 100 MΩ or greater in parallel with an input capacitance of
; e# o( D1 {; R8 u `25 pF or less, shall be used for this test.3 W; b7 y* c7 c5 W8 O8 B
For other (automatic) equipment with special measurement techniques equivalent, f; S' z3 r- w7 O# ~. v# u$ X$ v2 z+ H
measures shall be taken to ensure comparable results.4 S2 i6 S9 N8 M' z
Explanatory Notes:
0 W: y* W/ z% j! F& E* Y% H9 tThis issue was raised at the 2008 CTL meeting after discussing the proficiency testing+ S# `7 j8 c: V: Y% j
program on plug discharge 2007/2008. Participants used several different probe& \# V/ L( k3 z3 {3 H
impedances, which caused inconsistent results. |
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