1、 1 (IEC 61672-1:2002, MOD) , ()INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION(ISC)171872010(IEC 61672-1:2002), - 1.092 . - 1.22009 . , , . -, , 1 - ( ) - , 42 3 , (- 10 2010 . 37). : ( 3166) 00497 ( 3166) 00497 AMBYKZKGMDRUTJUZUA - 4 IEC 61672-1:2002 Electroacoustics Sound level
2、 meters Part 1: Specifications (. -. 1. ) , . IEC/TC 29 Electroacoustics. (en). (MOD). , , - , 5 1718781 15 2011 . 1570- 171872010 - 1 2012 . ( ) - ., . , 2012 -, II 1718720101 .12 23 24 55 55.1 .55.2 .75.3 95.4 95.5 125.6 135.7 FS .135.8 .145.9 .155.10 165.11 165.12 .165.13 175.14 .175.15 175.16 18
3、5.17 185.18 .185.19 195.20 .196 ,.196.1 .196.2 206.3 .206.4 206.5 .206.6 217 .228 229 22 ()27 ()AU.28 () I () 29 ()(), 3131III 171872010 - 61672-1:2002:- 1.52001 60050-801, 60942, / , - ;- 1.2, 5.1.6, 5.2.3, 5.4.3, 9.2.1 ), 9.2.5 b) - , - . , - ;- 1.5 - , , - ;- 3.3 , A-weighted ( -weighted);- 3.4 ,
4、 F ( S);- 3.5 2 - , , 3, ();- 3.8- ;- 3 3.9 - 2 ;- 3.10 4, ;- , . .IV 171872010 1 Sound level meters. Part 1. Technical requirements1 1.1 , :- , -;- - , ;- , . . - - . , , .1.2 - - .1.3 , , - . - AU 1.1.4 1- 2- . 1- 2- . - 2- 1-.1.5 . . . , , . , -, , .1 171872010(IEC 61672-1:2002) 201211011.6 . , .
5、2 : 30804.4.22002 . - . 30804.6.22002 . - , . 308472002 . . - ( ), 1 , , . (), () . -,.3 2 4, 30804.6.2, :3.1 (reference sound pressure): - , 20 .3.2 Lp(sound pressure level), : - -.3.3 (frequency weighting), : ,- ( ) . A-weighted ( -weighted), ( ), ( ). Z, AU, FLAT.3.4 (time weighting function): -
6、, . - , , - F ( S).3.5 (time-weighted sound level), : - - -, , .1 , F S, -: LAF, LAS , LCF, LCS .2 , , - , .2 1718720103 ( ) - ( ). , - , , 3.3, .4 Lc116(t) t Lc116(t)=20lg (/) () /()/12120c116c120 c120c120c116pe d pAttc45c45c45c165c242c233c235c234c234c249c251c250c250c236c237c239c238c239c252c253c239c254c239,(1) c116 F S, ;c120 , c45c165, t;pA(c120) ;p0 . (1) - t.5 1 , (1).3.6 (maximum time-weighted soundlevel), : . :LAFmax, LASmax, LCFmax LCSmax F S.3.7 (peak sound pressure): .3.8 Lpeak(peak sound level),
