A Comb Transducer Model for Guided Wave Mode Control

Rose, Joseph L.; Pelts, S. P.; Cho, Y.

doi:10.1007/978-1-4615-4791-4_132

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…It would be particularly useful if the size of defects, in addition to location, could be indicated by this method. This issue is being explored by Rose et al (2000) in terms of appropriate modes and frequencies and should also be analyzed for geothermal piping. Ravenscroft et al (1998) reported on a technique that uses creeping (lateral) and head waves for screening of piping and other geometries.…”

Section: Long Range Guided Wave Testingmentioning

confidence: 99%

Non-Destructive Testing Methods for Geothermal Piping.

Berndt¹

2001

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SUMMARYNon-destructive testing is a key component of optimized plant inspection and maintenance programs.Risk based inspection, condition based maintenance and reliability centered maintenance systems all require detection, location and sizing of defects or flaws by non-destructive methods. Internal damage of geothermal piping by corrosion and erosion-corrosion is an ongoing problem requiring inspection and subsequent maintenance decisions to ensure safe and reliable performance. Conventional manual ultrasonic testing to determine remaining wall thickness has major limitations, particularly when damage is of a random and localized nature. Therefore, it is necessary to explore alternative non-destructive methods that offer potential benefits in terms of accurate quantification of size, shape and location of damage, probability of detection, ability to use on-line over long ranges, and economics. A review of non-destructive methods and their applicability to geothermal piping was performed. Based on this, ongoing research will concentrate on long range guided wave and dynamic methods.

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Section: Long Range Guided Wave Testingmentioning

confidence: 99%