KS B ISO 10375-2008 Non-destructive testing-Ultrasonic inspection-Characterization of search unit and sound field《无损检测 超声波探伤 探测仪和声场特性》.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS B ISO 10375 KS B ISO 10375:2008 2008 8 25 http:/www.kats.go.krKS B ISO 10375:2008 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : : 2002 10 21 : 2008 8 25 2008-0437 : : ( 025097270) (http:/www.kats.go.kr). 10 5 , . KS B ISO 10375:2008 Non-destructive testing

2、 Ultrasonic inspection Characterization of search unit and sound field 1997 1 ISO 10375, Non-destructive testing Ultrasonic inspectionCharacterization of search unit and sound field , . 1 . , . , 0.5 15 MHz . 2 . . ( ) . KS B ISO 2400: 2002, 3 BW (%) CN D (mm) dFL (mm) FD (mm) FL (mm) f (MHz) fl ( 3

3、 dB, 6 dB) fu ( 3 dB, 6 dB) fc (MHz) KS B ISO 10375:2008 2 fp (MHz) l1, l2 (mm) N0 (mm) PN Sr (dB) Tk , (mm) TPD (s) v (m/sec) Vin , , (v) Vout (v) x z (mm) (mm) ( ) ( ) ( ) () ( ) 4 . , , , . , . fv= (1) v : (km/sec) : (mm) f : (MHz) a) 5 MHz . . f 5 MHz 5106Hz . vlong 5.92 km/s 5.92106mm/s mm18.11

4、051092.566long= ( ) b) 5 MHz . . f 5 MHz 5106Hz . vtrans 3.26 km/s 3.26106mm/s KS B ISO 10375:2008 3 mm65.01051026.366trans= ( ) . . . . , . 4.1 1 . , , , , . 50 MHz . 50 , 50 . . : mm a) b) c) 1 (Tk 0.75N0 1.5N0, N0 ) . . 4 mm 2.5 mm . . IIW R 100 Z50 4 mmTkKS B ISO 10375:2008 4 50 mm . 2 . : mm Tk

5、 2 ( , .) . . , . . 0.02 mm . 1.6 3.2 m . 3 . , 4mm TkKS B ISO 10375:2008 5 : mm Tk N0 3 ( Tk 0.75N0 1.5N0, Tk N0) , z . . KS B ISO 2400 IIW . 100 mm . IIW 100 mm . . 45 75 50 mm , IIW . 80 1.5 mm . IIW (: ) . x . IIW 100 mm . 2 IIW . 4 IIW . . . . TkTkKS B ISO 10375:2008 6 : mm 4 ( , x , z , , ) 4.

6、2 , , . . PN . . 20 %( 14 dB) TPD . s . 5 7 . CN , CN . , 1.5 mm IIW , 50 mm ( ) x45R 100 60806070zKS B ISO 10375:2008 7 5 ( PN 7, CN 3.5) 4.3 ( ) . N0 FL . (FFT) . , . fp . 6 fl fu 50 %( 6 dB) . . 2lucfff+= (2) . (%) 100cluW=fffB (3) BW fu fl(MHz) . 100 %20 %( 14 dB) 20 % TPDKS B ISO 10375:2008 8 6

7、 7 IIW . 100 mm . 8 . . 1 7 . fp 3.4 MHz fl fu( 6 dB) fl 2.6 MHz fu 4.2 MHz fc . MHz4.322.46.2c=+=f . 8 . 2 (%) . %47%1004.36.22.4W=B . fu fl 4.2 MHz 2.6 MHz 1.6 MHz 100 %50 %(6 dB) flfpfcfuKS B ISO 10375:2008 9 7 (4.3 1 ) ( ) , , , MFG mm (RG & LG) IIW R 100 Tk(0.75 1.5) N0 N0 fc CN PN : 5052UA 7L1

8、2 /div.: : : /div.: : KS B ISO 10375:2008 10 8 (4.3 2 ) 4.4 ( ) , , , MFG mm (RG & LG) IIW R 100 Tk(0.75 1.5) N0 N0 fc CN PN : 5052UA 7L12 /div.: : : /div.: : KS B ISO 10375:2008 11 “ ” . , , . . . (Fresnel Zone) 9 . (Fraunhofer Zone) 9 . D N0 . 420DN (4) N0: D : : fc 9 ZEMANEK J.,J. Acoust. Soc. Am

9、., 49, pp. 181191(1971) 1 10 mm, 5 MHz . . v 1.48 km/s 1.48106mm/s 0.3 mm mm3.833.041020=N ll . 435.120lN (5) (Fresnel ) 3dB Z/N0D (Fraunhofer) 6 dBKS B ISO 10375:2008 12 2 10 mm10 mm, 5 MHz . 4. a) 1.18 mm l: 10 mm mm6.2818.141035.120=N fc . . fl fu . . . 71 %( 3 dB) ( ) . ( D) =D 51.0sin1(6) 3 10

10、mm ( 3 dB) . 5 MHz 0.3 mm ( 1 ). ( 3 dB) . =88.0103.051.0sin1 2 , 1.8 . ll . =l 44.0sin1(7) . . . (l1, l2) l1 l2 3 dB . =21211144.0sin44.0sinll(8) . ( ) . . 4.5 KS B ISO 10375:2008 13 . f1 fu 50 %( 6 dB) . 71 %( 3 dB) 50 %( 6 dB) . ( , 71 % 3 dB ( , 50 % 6 dB) (9) (6), (7), (8) . 5 mm10 mm, 5 MHz .

11、l1 ( 6 dB) . l1 5 mm 4. a) 1.18 mm =6518.144.0sin11 l1 ( 6 dB) 12 . l2 . l2 10 mm 1.18 mm =31018.144.0sin12 l1 ( 6 dB) 6 . . 1, 2 (鋼球 ) . . . 10 . 10 , , . . FL . FD( ) ( , 100 %) () 50 %(6 dB) KS B ISO 10375:2008 14 50 %( 6 dB) . 50 %( 6 dB) dFL . 11 . . , (side-drilled holes) , , , , . ISO 12715(N

12、on-destructive testing Ultrasonic testing Reference blocks and test procedures for the characterization of contact search unit sound fields) . 11 , 4 mm100 %50 % 50 % 6 dB 0 dB 6 dB , 19 mm, 5 MHz Z(mm) (volts) KS B ISO 10375:2008 15 4.6 . . ( , ) () () . . 4.7 Sr , , . Vin Vout . dBlog20inout10r=VV

13、S(10) . . 5 . 12 . 12 . Vout 5 div.100 mV/div. 500 mV 510 1V Vin 5 div.2 V/div. 10 V dB26)3.1(2010105log20110r=S KS B ISO 10375:2008 16 12 (4.7 ) (N0 , FL , S , Tk 50 W) IIW N0 FL R 100 VinVoutVinVoutTk fc KS B ISO 10375:2008 17 KS B ISO 10375:2008 . 1 1.1 . 1.2 2002 ISO 10375 (2008 ) . 2 a) 2003 20

14、08 7 8 KS A 0001( ) . b) , . c) , . 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS B ISO 10375:2008KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Non-destructive testing Ultrasonic inspection Characterization of search unit and sound field ICS 19.100

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