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噪音测试标准
4 t1 v; _9 B' h' E2 p) e
" S) C$ {8 l0 Z( cISO 3743-1:1994* K7 `' T# N& I6 O! }1 {/ E1 c- P
Acoustics - Determination of sound power levels of noise sources -
2 k# p8 L4 R0 {, yEngineering methods for small, movable sources in reverberant fields -
8 v/ l; m5 d) G0 i7 B& H) mPart 1: Comparison method for hard-walled test rooms! a, e, J$ G* A7 P
( M$ j! ]% {4 M0 r) g) X5 a$ r
BS EN ISO 3743-2:1997 (BS ISO 3743-2:1994 + Amd 1)4 W8 t- @5 m( w/ d, I& @) c( X
Acoustics - Determination of sound power levels of noise sources -
4 z/ A$ f. Z+ U6 ^7 |8 c( TEngineering methods for small, movable sources in reverberant fields -
6 k0 c3 y! A: w+ [4 I; s# NPart 2: Methods for special reverberation test rooms
$ e% {3 k4 l- q# _& Z
% d/ n; e7 l: ]8 b: y5 s c; pBS EN ISO 3743-1:1995 Incorporating Amendment No. 1
4 c) J! z0 e8 x ?9 f/ j9 {' [Acoustics — Determination of sound power levels of noise sources —2 n$ e5 X3 ^ j5 Z! S6 D6 x
Engineering methods for small, movable sources in reverberant fields —
5 n+ d: U% k# n1 `" q) LPart 1: Comparison for hard-walled test rooms- A, y( L( l+ R5 Y4 }) e$ o
1 c' M" D- T5 \. Z: B6 r
http://www.angui.org/bbs/read.php?tid-12541-keyword-3743.html |
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