14 December 2016 Detection of acoustic emission signals in the polymer composite material by adaptive fiber-optic sensors
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Proceedings Volume 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics; 1017613 (2016) https://doi.org/10.1117/12.2268226
Event: Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 2016, Khabarovsk, Russia
Abstract
The paper presents the results of an analysis of the acoustic emission signals recorded both by piezoelectric and adaptive fiber-optical sensors. Fiber-optical sensors have been embedded into the polymer composite material during their manufacture. Fiber-optical sensors are designed on the base of adaptive interferometer that uses a dynamic hologram formed in the photorefractive crystal. It has been shown that the sensitivity of adaptive interferometer allows the detection of acoustic emission signals generated by the Hsu-Nielsen source. Peculiarities of material sound velocity determination with use of acoustic signals detected by distributed fiber-optical sensors are discussed.
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Oleg V. Bashkov, Roman V. Romashko, Valeriy I. Zaykov, Alexander E. Protsenko, Michail N. Bezruk, Han Htoo, "Detection of acoustic emission signals in the polymer composite material by adaptive fiber-optic sensors", Proc. SPIE 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 1017613 (14 December 2016); doi: 10.1117/12.2268226; https://doi.org/10.1117/12.2268226
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