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本帖最后由 zhangfc 于 2015-6-26 19:16 编辑
: i, j- G% _1 o" P让梦飞翔 发表于 2015-6-26 16:58 
1 U! p# w0 [9 i还没查到哪里有的买?
- Z, c7 v. g- S* ^+ C, e这个东西,我们实验室有。好像从顺德商检局或质监局买的。# t, {# g e9 M9 l" z& O$ |+ d: S
( j+ G0 \4 w4 ~5 k0 Q. |% i这玩意只能测220V以上的,120V左右的测不了。- u( v4 Z7 L& d( C% p% E
DSH-0716+ L* e* X& T }% i" ~% o& g
If the relevant standard does not contain contradictory requirements, a voltage probe
) [& a5 y# g: xhaving an input impedance of 100 MΩ or greater in parallel with an input capacitance of
1 ~5 y) x$ t" \/ q6 h0 E25 pF or less, shall be used for this test.
* X9 _7 F- k& O4 B e5 RFor other (automatic) equipment with special measurement techniques equivalent$ {4 V2 B* [( o, M: n* e) j1 L) ~
measures shall be taken to ensure comparable results.7 w" {+ h* A! B8 e$ r
Explanatory Notes:% Q' I# ^9 ^- C9 d8 {+ I- i
This issue was raised at the 2008 CTL meeting after discussing the proficiency testing
) n5 F: `. |; ~* g2 f& `program on plug discharge 2007/2008. Participants used several different probe b6 O7 o9 c# H8 R* G" l
impedances, which caused inconsistent results. |
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