@inproceedings{fc9eca11cab84036959c8075bbe49d9f,
title = "Ultrasonic gas accumulation detection and evaluation in nuclear cooling pipes",
abstract = "This paper presents a novel ultrasonic guided wave based inspection methodology for detecting and evaluating gas accumulation in nuclear cooling pipe system. The sensing is in-situ by means of low-profile permanently installed piezoelectric wafer sensors to excite interrogating guided waves and to receive the propagating waves in the pipe structure. Detection and evaluation is established through advanced cross time-frequency analysis to extract the phase change in the sensed signal when the gas is accumulating. A correlation between the phase change and the gas amount has been established to provide regulatory prediction capability based on measured sensory data.",
keywords = "Cross time-frequency analysis, Gas accumulation, Nuclear cooling pipe, Ultrasonic sensing",
author = "Lingyu Yu and Bin Lin and Shin, {Yong June} and Jingjiang Wang and Zhenhua Tian",
year = "2012",
doi = "10.1117/12.915200",
language = "English",
isbn = "9780819490025",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012",
note = "Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012 ; Conference date: 12-03-2012 Through 15-03-2012",
}