2019
Статьи / главы в тематических сборниках
Asia-Pacific Conference on Fundamental Problems of Opto-and Microelectronics 2017. – International Society for Optics and Photonics
USA, SPIE
Т. 11024
Bashkov O.V., Romashko R.V., Khon H., Bezruk M.N., Zaikov V.I., Bashkov I.O. Registration of acoustic emission waves in anisotropic composite plates by fiber-optic sensors //Asia-Pacific Conference on Fundamental Problems of Opto-and Microelectronics 2017. – International Society for Optics and Photonics, 2019. – Т. 11024. – С. 110240O.
This paper presents the results of the analysis of acoustic emission signals registered by using fiber-optic sensors during the propagation of ultrasonic waves in a polymer composite material. Fiber-optical sensors for acoustic emission were constructed according to the scheme of an adaptive holographic interferometer. Unlike piezoelectric sensors, fiber-optic sensors are distributed type sensors. This imposes certain features on the detection of signals in plates in which fiberoptic sensors are embedded. It is established that the difference of the spectrum of acoustic emission signals registered in different directions of wave propagation. The local maximums of the spectrum are determined by the mode of wave propagation in the plate in different directions and the location of fiber-optic sensors.