Open AccessExperimental study on the damage monitoring of a Pi-type pipeline based on ultrasonic guided waves
Author(s) -
Xingsheng Lao,
TianQi Dai,
Yong Liu,
Shiwei Yao
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2085/1/012015
Subject(s) - ultrasonic sensor , pipeline (software) , acoustics , interference (communication) , approximation error , amplitude , pipeline transport , transducer , materials science , ultrasonic testing , channel (broadcasting) , structural engineering , environmental science , engineering , physics , optics , electrical engineering , mathematics , statistics , mechanical engineering , environmental engineering
Aiming at the damage of the prefabricated counter bore at the elbow of the scribble pressure pipeline, a test system is established based on the ultrasonic guided wave technology, and the end echo interference is eliminated by arranging a multi-channel sensor array to achieve accurate positioning of the pipeline damage and return the measured damage Comparing the wave amplitude value with the 3% DAC curve to calculate the pipe damage cross-sectional loss rate, the test results show that the average relative error between the monitored damage cross-sectional loss rate and the actual cross-sectional loss rate is 3.46%, and the average relative error of damage location is 2.05%.