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复合材料手动扫描超声特征成像检测-材料工程.PDF
34 /20034
Manual Scan Ultrasonic Feature Imaging
T esting of Composite Material
, , ( , 100084)
ZH NG Rui , CHENG Yi-fang , FU De-yong
(Tsinghua University, Beijing 100084, China)
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: T G115.28 5: : 1001-4381 (2003) 04-0034-05
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Abstract Themanual featured scan ultrasonic imaging system for compositematerials is developed
T he establishment of full-wave acquisition of ultrasonic testing signal makes the system a full-infor-
mation processing ability of the waveform features for any testing point. Moreover, various testing
methods of feature-scan imaging are established: -scan and parameter measurement, B scanning,
C-scan imaging, phase feature imaging, equivalent feature imaging, half-wavelength ultrasonic
chromatography and ultrasonic spectrum analysis. testing experiment of a carbon fiber composite
specimen has been done and the result displays the interior quality status of the specimen accurate-
ly.
Key words: ultrasonic testing; acoustic imaging; manual scan; signal processing
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