1、 KS I ISO 9614 3KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS 3: KS I ISO 9614 3: 2007(2012 ) 2007 8 31 http:/www.kats.go.krKS I ISO 9614 3: 2007 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2007 8 31 :2012 12 29 2012-0837 : : ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS I ISO 9614 3: 2007 (2012 )
2、 3: AcousticsDetermination of sound power levels of noise sources using sound intensityPart 3:Precision method for measurement by scanning 2002 1 ISO 9614 3, Acoustics Determination of sound power levels of noise sources using sound intensity Part 3: Precision method for measurement by scanning , .
3、1 1.1 . . . . 1/3 . , . C . , . , . , . 1.2 , . , . , . . KS I ISO 9614 3: 2007 2 2 . . ( ) . KS C IEC 60942: 2004, IEC 60651, IEC 61043: 1993, IEC 61260, GUM: 1993, . BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML 3 KS I ISO 9614 . A . B . 3.1 Lp 10 1 20 Pa . 2 . 3.2 , )(tlr , . )(tIr p(t) )(tur (1) p(t)
4、 : )(tur: t : 3.3 lr )(tIr: =TTttITI0d)(1limrr (2) T: KS I ISO 9614 3: 2007 3 I Ir, . I Ir3.4 In n In Ir n (3) nr . 3.5 LIn In . LIn 10 lg dB0nII (4) I0 ( 10 12 W m 2). 1 . 2 In , ( ) XX dB . pI0 (3.10 ) 3.6 3.6.1 Pi , . Pi iIn Si (5) iIn : i Si : i 1 i nIL XX dB . iIn . iIn I010XX/10 (6) 2 i nIL (
5、)XX dB . iIn . iIn I010XX/10 (7) 3.6.2 , P KS I ISO 9614 3: 2007 4 , . =NiiPP1 (8) N: 3.6.3 LW , , . dBlg100PPLW= (9) P0: ( 10 12 W) 1 . 2 P , ( )XX dB . 3.6.4 LW0 ( 0 23, B0 101 325 Pa), . dB15.27315.296325101lg150 +=BLLWW(10) : , , B: , , H 3.7 3.7.1 , . . 3.7.2 , 1 KS I ISO 9614 3: 2007 5 3.7.3 2
6、 “ ” . 3.8 ( ) 3.9 3.10 pI0 , Lp LI pI0 Lp LI(11) LI I . LIdBlg100II= (12) 1 . 2 pI0 IEC 61043 . 3.11 Ld Ld pI0 K(13) 1 . 2 K 10 dB . pI0 . 3.12 . . 3.13 3.13.1 KS I ISO 9614 3: 2007 6 3.13.2 3.13.3 Ts 3.14 3.14.1 1/3 3.14.2 t . 3.14.3 Inq pq2 , q 1, 2, 3, .Q q t 3 3.14.4 mIn 2mp m 1, 2, 3, . M (m 1
7、)T, mT , +=mQQmqqmIQI1)1(nn1(14) +=mQQmqqmpQp1)1(221(15) Q (m 1)T, mT Inq pq2 3 FT , T . KS I ISO 9614 3: 2007 7 4 4.1 C . . 4.2 3.12 . ( C.1 ) . 4.3 . , . , . , . . (: , ) . 1 . IEC 61043 . , . , GUM 95 % 1 . . , ( B ) . C.1 . 50 Hz , . , A 50 Hz 6.3 kHz 1/3 . 31 40 Hz 8 10 kHz , 50 Hz 6.3 kHz 1/3
8、A . KS I ISO 9614 3: 2007 8 , A 6 dB A . A , 10. b) . A , 10 dB A A . , A 10 dB A . A , 10 dB . 1 KS I ISO 96143 1/3 Hz dB 50 160 200 315 400 5 000 6 300 2.0 1.5 1.0 2.0 Aa1.0b 1 , 1 . 2 1 . ISO 7574 4 . 3 1 . , . , ISO 7574 1 .a50 Hz 6.3 kHz 1/3 b1/3 50 Hz 6.3 kHz “ ” 5 5.1 IEC 61043 . 5.2 5.5 . 5.
9、2 5.2.1 (C.1.4 ), . KS I ISO 9614 3: 2007 9 , . E . 5.2.2 (: , ) . 5.3 , . . , 1 m/s . D . 5.4 20 mm . . 5.5 . , . . , , . , . 5.6 . , (IEC 61043 ). 6 6.1 IEC 61043: 1993 1 . IEC 61043 . IEC 61043 , . KS I ISO 9614 3: 2007 10 , (3.14, 6.3 3 ). 6.2 6.2.1 1 2 ( ) IEC 61043 . 10. d) . , 6.2.2 6.2.3 . 6
10、.2.2 KS C IEC 60942: 2004 0 1, 0 L 1 L . 6.2.3 . . 180 , . . . 1/3 In , , 1.0 dB . 6.3 Ts 8.3.2 FT . t 0.5 s . FFT , 30 % ( 3 G ) . 7 7.1 , . , KS I ISO 9614 3: 2007 11 . / / . 7.2 . , . a) b) ( ) c) ( ) d) e) f) 8 8.1 . , ( 1 ). 0.25 m . (0.06 ) . , (5) (3.6.1 ). 1 5 1 ( ) () KS I ISO 9614 3: 2007 12 8.2 . . . 20 dB . . . . , . 1, 2 3 , Ns 20 . 2 . , 2 . x y 0.83 x/y 1.2 . . 1.5 . 1 2 . (1 2 ). , . 8.3 8.3.1 KS I ISO 9614 3: 2007 13 C , C.1 . 2 . , .