A new transducer holder mechanism for pipe inspection

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

A new transducer holder mechanism has been designed and fabricated for pipe inspection by cylindrical guided waves. Commercially available ultrasonic transducers have been used to generate compressional ultrasonic waves in the coupling medium. Those waves are converted to cylindrical guided waves in the pipe by the new coupling mechanism. A number of advanced coupling mechanisms developed recently for large plate and pipe inspection require the presence of a coupling fluid between the ultrasonic transducer and the pipe or plate specimen. These mechanisms can be used for inspecting horizontal pipes and plates. The new coupling mechanism presented in this article uses solid material as the coupler and can be used equally well for inspecting horizontal as well as inclined or vertical pipes. The new coupling mechanism has been designed to generate efficiently different Lamb modes in the pipe. The new design has been used to inspect different kinds of anomalies in copper and aluminum pipes. The preliminary results show that a number of Lamb modes, when generated properly by the new coupling mechanism, are very sensitive to the pipe defects. These experimental results along with the new design of the coupling mechanism are presented in this article.

Original languageEnglish (US)
Pages (from-to)303-309
Number of pages7
JournalJournal of the Acoustical Society of America
Volume110
Issue number1
DOIs
StatePublished - 2001

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holders
inspection
transducers
ultrasonics
ultrasonic radiation
couplers
anomalies
aluminum
Waves
copper
fluids
defects

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

A new transducer holder mechanism for pipe inspection. / Guo, D.; Kundu, Tribikram.

In: Journal of the Acoustical Society of America, Vol. 110, No. 1, 2001, p. 303-309.

Research output: Contribution to journalArticle

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