|
|
本帖最后由 zhangfc 于 2015-6-26 19:16 编辑
( m& C) J2 u) s. `让梦飞翔 发表于 2015-6-26 16:58 
) Q0 R) G1 U( d0 @4 O还没查到哪里有的买? " p( z' W" Z9 v
这个东西,我们实验室有。好像从顺德商检局或质监局买的。
8 {2 l4 n$ V# ?3 {. \/ b- h- e2 g3 s! \* I; f' o: _* w, f
这玩意只能测220V以上的,120V左右的测不了。0 W6 C2 U) f' F( b F
DSH-07169 F3 r: i. T: s/ @# O- b9 q
If the relevant standard does not contain contradictory requirements, a voltage probe p$ Y+ N# [2 P
having an input impedance of 100 MΩ or greater in parallel with an input capacitance of
: X( C! o8 Y9 c F' R25 pF or less, shall be used for this test.; Z! ~: b. w+ h6 M1 P; z
For other (automatic) equipment with special measurement techniques equivalent$ ?0 t; K% H/ {" N% A; k9 Y) N0 f
measures shall be taken to ensure comparable results.$ d1 X/ k2 [: I6 H1 P
Explanatory Notes:( s0 h$ ^9 }+ ~' r& [( G' v! k
This issue was raised at the 2008 CTL meeting after discussing the proficiency testing3 _. ~' ~+ s9 B3 ?, Z6 _2 r
program on plug discharge 2007/2008. Participants used several different probe
3 G. l8 r1 o8 V& O# cimpedances, which caused inconsistent results. |
评分
-
查看全部评分
|