A synthetic digital signal processing method of ultrasonic guided wave pipeline inspection
Proceedings of 2011 International Conference on Image Analysis and Signal Processing, IASP 2011(2011)
摘要
Long-range guided wave inspection is a new emerging technology for rapid pipeline inspection. In this paper, a digital signal processing method based on a synthetic technique and a direction control technique is introduced to process pipeline inspection signals. With this method, signals from different directions can be separated and structures including defects can be detected. Working with an instrument developed by Petrochina Pipeline R & D Center, this method is already used in inspection of in-service pipelines.
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关键词
acoustic signal processing,inspection,pipelines,structural acoustics,ultrasonic waves,defect structures,synthetic digital signal processing method,ultrasonic guided wave pipeline inspection,digital signal processing,pipeline inspection,synthetic,ultrasonic guided wave,
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