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Proceedings Paper

Vibro-acoustic modulation technique for micro-crack detection in pipeline
Author(s): Jingpin Jiao; Lei Zheng; Guorong Song; Cunfu He; Bin Wu
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Paper Abstract

For the poor sensitivity of traditional ultrasonic technique for micro crack detection, a kind of nonlinear ultrasonic technique, vibro-acoustic modulation technique, is used for micro crack detection in pipes. The influence of the frequency and amplitude of vibration on the modulation index (MI) is experimentally investigated. The experiment results prove that the vibro-acoustic modulation technique can be used for crack detection in pipes. The modulation index is influenced by the frequency and amplitude of vibration, therefore it is important to choose the appropriate parameters in order to get higher sensitivity in crack detection.

Paper Details

Date Published: 16 November 2011
PDF: 8 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 83213X (16 November 2011); doi: 10.1117/12.905550
Show Author Affiliations
Jingpin Jiao, Beijing Univ. of Technology (China)
Lei Zheng, Beijing Univ. of Technology (China)
Guorong Song, Beijing Univ. of Technology (China)
Cunfu He, Beijing Univ. of Technology (China)
Bin Wu, Beijing Univ. of Technology (China)


Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)

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