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Proceedings Paper

A new temperature compensation method for guided wave-based structural health monitoring
Author(s): Yishou Wang; Lei Qiu; Limin Gao; Shenfang Yuan; Xinlin Qing
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Paper Abstract

A new temperature compensation technique combining optimal baseline selection and the filter based on Adaptive Linear Neuron Network was developed to enhance the robustness and effectiveness of guided Lamb wave-based damage detection. This paper focuses on three main issues for practically implementing the proposed method: (a) Establishment of temperature compensation standard; (b) Parameters design of compensation filter; (c) Determination of temperature gradient of baseline signals. Experiments were conducted on two stiffened composite plates to demonstrate the feasibility of proposed method under a temperature range from -40°C to 80°C for compensating temperature effects. Results showed that a reasonable temperature step for providing good temperature compensation can be up to 20°C in a baseline dataset.

Paper Details

Date Published: 17 April 2013
PDF: 10 pages
Proc. SPIE 8695, Health Monitoring of Structural and Biological Systems 2013, 86950H (17 April 2013); doi: 10.1117/12.2009526
Show Author Affiliations
Yishou Wang, Beijing Aeronautical Science and Technology Research Institute (China)
Dalian Univ. of Technology (China)
Lei Qiu, Nanjing Univ. of Aeronautics and Astronautics (China)
Limin Gao, Beijing Aeronautical Science and Technology Research Institute (China)
Shenfang Yuan, Nanjing Univ. of Aeronautics and Astronautics (China)
Xinlin Qing, Beijing Aeronautical Science and Technology Research Institute (China)


Published in SPIE Proceedings Vol. 8695:
Health Monitoring of Structural and Biological Systems 2013
Tribikram Kundu, Editor(s)

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