23 March 2015 Data fusion for compensation of temperature variations in Lamb-wave based SHM systems
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Abstract
Temperature variations affect Lamb wave propagation and therefore in this way they can severely limit application of baseline signals in SHM systems. Various techniques are proposed in the paper to solve this problem. New method based on an interpretation of multiple signals acquired in distinct points of the structure is introduced and compared with other widely used approaches. Data fusion is used to merge a number of methods into one with a substantially increased efficiency.
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Ziemowit Dworakowski, Lukasz Ambrozinski, Tadeusz Stepinski, "Data fusion for compensation of temperature variations in Lamb-wave based SHM systems", Proc. SPIE 9438, Health Monitoring of Structural and Biological Systems 2015, 94381S (23 March 2015); doi: 10.1117/12.2085124; https://doi.org/10.1117/12.2085124
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