1、 KSKSKSKS KS C IEC 61895SKSKSKS KSKSKS SKSKS KSKS SKS KS KS C IEC 61895: 2005 2005 12 30 C IEC 61895: 2005 ( ) ( ) ( ) ( ) : : 2005 12 30 2005 1167 : : ( ) ( 02 509 7267 70) . 7 5 , . C IEC 61895: 2005 1 1. 1 2. 1 3. 1 4. 3 5. 4 5.1 4 5.2 5 5.3 7 5.4 8 5.5 9 5.6 10 5.7 10 5.8 10 5.9 10 5.10 10 5.11
2、10 5.12 11 5.13 12 5.14 , , 12 5.15 13 6. 14 6.1 14 6.2 14 A( ) 17 A.1 17 A.2 17 A.3 17 A.4 18 20 i ICS 17.140.50 KS C IEC 61895: 2005Ultrasonics Pulsed Doppler diagnostic systems Test procedures to determine performance 1999 1 IEC/TS 61895 Ultrasonics Pulsed Doppler diagnostic systemsTest procedure
3、s to determine performance . 1. . . , (EMC) . . . . 2. . . KS C IEC 61102: 2004 0.5 15 MHz IEC 61206: 1993 Ultrasonics Continuous-wave Doppler systems Test procedures IEC 61390: 1996 Ultrasonics Real-time pulse-echo systems Test procedures to determine performance specifications 3. . 3.1 6 dB 6 dB 3
4、.2 20 dB 20 dB 3.3 ( ) 3.4 ( 僞信 號, aliasing) . . . . 3.5 C IEC 61895: 2005 3.6 B ( ) , . 3.7 . . (high-pass filter) . 3.8 3.9 ( ) , IEC 61206 1.3.1. 3.10 ( ) , IEC 61206 1.3.2, . 3.11 3.12 . 3.13 ( ) , (wave) IEC 61206 1.3.3, . 3.14 , IEC 61206 1.3.5. 3.15 IEC 61206 1.3.4, 3.16 IEC 61206 1.3.6 3.17
5、3.18 , IEC 61206 1.3.8 3.19 B 3.20 , . 3.21 ( A.2 ) 3.22 , ( A.2 ). , A.2 . 3.23 . . 3.24 IEC 61206 1.3.9 3.25 , 2 C IEC 61895: 2005 . 3.26 , . 3.27 , . , IEC 61206 1.3.12. 3.28 , IEC 61206 1.3.13. 3.29 , 90 ( ) 90 . . 3.30 (PRF ) 3.31 . . 3.32 , . . 3.33 3.34 IEC 61390 3.29 3.35 ( ) (電離 ) (線量 ) SI
6、. 3.36 3.37 , . 3.38 . 3.39 ( ) (3.18 ) 3.40 , 3.41 3.42 B 4. c 3 C IEC 61895: 2005 L Lmax f0 fvm , , 5. 5.1 5.1.1 . ( ) . . ( ) , . . . A . B / . . . . B , . . B . . . . , B , . . (PRF), , . . FFT(Fast Fourier Transform, ) . , , . , ( , ) . . . 5.1.2 . 4 C IEC 61895: 2005 , . , . . , 1 . . 5.2.4 , . . 1 5.2.4 5.9 5.4.3.1 5.4.1 5.11 5.4.1 5.4.3.2 5.4.3.3 5.6 5.8 5.7 5.12 5.13 , , 5.14 5.1.3 . , . . . . . 2 3 ( A ). 5.1.4 / . , . . 5.2 , 5.2.4 5.3 5.15 . , . , . ,
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