Guided Wave Focusing Mechanics in Pipe
2005 ◽
Vol 127
(3)
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pp. 317-321
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Keyword(s):
Guided waves can be used in pipe inspection over long distances. Presented in this paper is a beam focusing technique to improve the S∕N ratio of the reflection from a tiny defect. Focusing is accomplished by using nonaxisymmetric waveforms and subsequent time delayed superposition at a specific point in a pipe. A semianalytical finite element method is used to present wave structure in the pipe. Focusing potential is also studied with various modes and frequencies.
Keyword(s):
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2014 ◽
Vol 06
(05)
◽
pp. 1450059
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2012 ◽
Vol 226-228
◽
pp. 1906-1909
2005 ◽
Vol 127
(4)
◽
pp. 471-478
◽
Keyword(s):
2016 ◽
Vol 231
(11)
◽
pp. 2080-2088
2005 ◽
Vol 127
(3)
◽
pp. 322-327
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