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- Title
STUDY ON THE ACOUSTIC EMISSION FEATURES OF LEAKAGE DETECTION ASSISTED BY WAVE GUIDE RODS.
- Authors
WANG Xin-hua; JIAO Yu-lin; NIU Yong-chao; YANG Jie
- Abstract
Through theoretical derivation of elastic waves in wave guide rods, a mathematical expression for extent calculation of acoustic emission signal propagated in the wave guide rods is constructed. The expression is tested and further studied based on which the paper proposes a method of online testing and positioning accurately the inner source of leaks in high-pressure heater by adopting measurement technology assisted by wave guide rods and source-positioning technology of acoustic emission. This method solved the leakage detection issue of high-pressure and high-temperature heater under special working conditions.
- Subjects
ACOUSTIC emission; LEAK detectors; WAVEGUIDES; STRUCTURAL rods; ELASTIC waves; HEAT transfer
- Publication
International Journal of Heat & Technology, 2015, Vol 33, Issue 2, p143
- ISSN
0392-8764
- Publication type
Article
- DOI
10.18280/ijht.330223