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Proceedings Paper

Ultrasonic gas accumulation detection and evaluation in nuclear cooling pipes
Author(s): Lingyu Yu; Bin Lin; Yong-June Shin; Jingjiang Wang; Zhenhua Tian
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Paper 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.

Paper Details

Date Published: 6 April 2012
PDF: 11 pages
Proc. SPIE 8345, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012, 83454U (6 April 2012); doi: 10.1117/12.915200
Show Author Affiliations
Lingyu Yu, Univ. of South Carolina (United States)
Bin Lin, Univ. of South Carolina (United States)
Yong-June Shin, Univ. of South Carolina (United States)
Jingjiang Wang, Univ. of South Carolina (United States)
Zhenhua Tian, Univ. of South Carolina (United States)


Published in SPIE Proceedings Vol. 8345:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
Masayoshi Tomizuka; Chung-Bang Yun; Jerome P. Lynch, Editor(s)

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