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Crack detection in underground pipelines using piezoelectric sensors

Nozarian, M. M ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1166/asl.2013.4844
  3. Publisher: 2013
  4. Abstract:
  5. Regarding the structural health monitoring of pipelines, early detection of cracks may be one of the possible ways to prevent future failures. Among the detection methods which have been known, one is to measure the vibration signals generated due to the hydraulics of pipe. This article discusses application of thin film piezo sensors mounted directly on the pipe. The vibration induced strain is transuded into electric voltage by the piezoelectric sensor. The recorded signals are used for PSD analysis which indicates that this method can be used as an accurate and cost effective detection. Moreover the promising results from the respective experiments on pipes indicated that second natural frequency is an efficient criterion for detection of cracks
  6. Keywords:
  7. Frequency ; Piezoelectric ; Pipeline ; PVdF ; Vibration
  8. Source: Advanced Science Letters ; Volume 19, Issue 3 , 2013 , Pages 770-774 ; 19366612 (ISSN)
  9. URL: http://www.ingentaconnect.com/content/asp/asl/2013/00000019/00000003/art00013?token=00561cc6f49f7f4ed918405847447b49766c7a3138425e7467477633757e6f3f2f2730673f582f6b65ad91