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噪音测试标准# c5 o; c# k, B6 l4 I ?1 y
. j' d$ _; l; D6 J9 I8 O9 x$ \4 r2 r CISO 3743-1:19946 y& c) V2 K" O' C
Acoustics - Determination of sound power levels of noise sources -
" ^1 L$ G" r% ]& S( jEngineering methods for small, movable sources in reverberant fields -
: b9 Q& \5 A- `# e# t2 N4 C+ \ p* ~Part 1: Comparison method for hard-walled test rooms
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6 a) e$ j( Y7 VBS EN ISO 3743-2:1997 (BS ISO 3743-2:1994 + Amd 1)
) u7 H# C, R% T; ?" T+ vAcoustics - Determination of sound power levels of noise sources - 1 J& ?8 [1 t: p; H
Engineering methods for small, movable sources in reverberant fields -% e4 T! j" M1 ^3 Q- g% l/ C
Part 2: Methods for special reverberation test rooms
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( \% d9 k4 ^8 P6 c7 ]' EBS EN ISO 3743-1:1995 Incorporating Amendment No. 1
9 b8 k! P/ q% A. V. [. L& {5 nAcoustics — Determination of sound power levels of noise sources —6 t& b+ ?* y" n& |4 V8 x$ i" r
Engineering methods for small, movable sources in reverberant fields —9 S7 \9 Q: p/ t. Q7 p4 o- n1 x1 ~! K
Part 1: Comparison for hard-walled test rooms
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- W3 d; `4 y8 P. L( }1 Fhttp://www.angui.org/bbs/read.php?tid-12541-keyword-3743.html |
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