Detecting acoustic-emission signals with fiber-optic interference transducers

O. V. Bashkov, R. V. Romashko, V. I. Zaikov, S. V. Panin, M. N. Bezruk, K. Khun, I. O. Bashkov

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Results of the analysis of acoustic-emission signals generated due to ultrasonic waves propagating in a polymer composite material and registered with piezoelectric and fiber-optic sensors are presented. The fiber-optic sensors were arranged into an adaptive interferometer based on using a dynamic hologram formed in a photorefractive crystal. Reducing the setpoint fading has made it possible to improve the noise immunity and sensitivity of the measurement system when using an adaptive interferometer on a photorefractive crystal. Optical fibers in the interferometer’s measurement system served as sensors of ultrasonic waves and were built into a polymer composite material when the sample was manufactured. The sample was a rectangular plate made of a multilayer fiberglass material. It has been discovered that the sensitivity of the adaptive interferometer makes it possible to detect acoustic- emission signals generated by a Hsu–Nielsen source. When determining the speed of sound in the polymer composite material, peculiarities of registering a group wave by fiber-optic sensors have been established that are due to the anisotropy of the medium the wave propagates in and the distributed character of sensor placement in the studied composite material. The wavelet transform has been used to separate the informative component of the wanted signal.

Original languageEnglish
Pages (from-to)415-421
Number of pages7
JournalRussian Journal of Nondestructive Testing
Volume53
Issue number6
DOIs
Publication statusPublished - 1 Jun 2017

Fingerprint

acoustic emission
Acoustic emissions
Interferometers
Fiber optics
Transducers
fiber optics
transducers
Fiber optic sensors
Photorefractive crystals
interference
interferometers
Polymers
sensors
Ultrasonic waves
Composite materials
composite materials
ultrasonic radiation
polymers
Sensors
Acoustic wave velocity

Keywords

  • acoustic emission
  • adaptive interferometer
  • fiber-optic sensor
  • Hsu–Nielsen source
  • photorefractive crystal
  • piezoelectric transducer
  • polymer composite material
  • signal
  • wavelet

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Bashkov, O. V., Romashko, R. V., Zaikov, V. I., Panin, S. V., Bezruk, M. N., Khun, K., & Bashkov, I. O. (2017). Detecting acoustic-emission signals with fiber-optic interference transducers. Russian Journal of Nondestructive Testing, 53(6), 415-421. https://doi.org/10.1134/S1061830917060031

Detecting acoustic-emission signals with fiber-optic interference transducers. / Bashkov, O. V.; Romashko, R. V.; Zaikov, V. I.; Panin, S. V.; Bezruk, M. N.; Khun, K.; Bashkov, I. O.

In: Russian Journal of Nondestructive Testing, Vol. 53, No. 6, 01.06.2017, p. 415-421.

Research output: Contribution to journalArticle

Bashkov, OV, Romashko, RV, Zaikov, VI, Panin, SV, Bezruk, MN, Khun, K & Bashkov, IO 2017, 'Detecting acoustic-emission signals with fiber-optic interference transducers', Russian Journal of Nondestructive Testing, vol. 53, no. 6, pp. 415-421. https://doi.org/10.1134/S1061830917060031
Bashkov, O. V. ; Romashko, R. V. ; Zaikov, V. I. ; Panin, S. V. ; Bezruk, M. N. ; Khun, K. ; Bashkov, I. O. / Detecting acoustic-emission signals with fiber-optic interference transducers. In: Russian Journal of Nondestructive Testing. 2017 ; Vol. 53, No. 6. pp. 415-421.
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