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Laser self-mixing fiber Bragg grating sensor for acoustic emission measurement

Journal Article


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Abstract


  • Fiber Bragg grating (FBG) is considered a good candidate for acoustic emission (AE) measurement. The sensing and measurement in traditional FBG-based AE systems are based on the variation in laser intensity induced by the Bragg wavelength shift. This paper presents a sensing system by combining self-mixing interference (SMI) in a laser diode and FBG for AE measurement, aiming to form a new compact and cost-effective sensing system. The measurement model of the overall system was derived. The performance of the presented system was investigated from both aspects of theory and experiment. The results show that the proposed system is able to measure AE events with high resolution and over a wide dynamic frequency range.

Publication Date


  • 2018

Citation


  • B. Liu, Y. Ruan, Y. Yu, J. Xi, Q. Guo, J. Tong & G. Rajan, "Laser self-mixing fiber Bragg grating sensor for acoustic emission measurement," Sensors, vol. 18, (6) pp. 1956-1-1956-12, 2018.

Scopus Eid


  • 2-s2.0-85048726875

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2503&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1501

Start Page


  • 1956-1

End Page


  • 1956-12

Volume


  • 18

Issue


  • 6

Place Of Publication


  • Switzerland

Abstract


  • Fiber Bragg grating (FBG) is considered a good candidate for acoustic emission (AE) measurement. The sensing and measurement in traditional FBG-based AE systems are based on the variation in laser intensity induced by the Bragg wavelength shift. This paper presents a sensing system by combining self-mixing interference (SMI) in a laser diode and FBG for AE measurement, aiming to form a new compact and cost-effective sensing system. The measurement model of the overall system was derived. The performance of the presented system was investigated from both aspects of theory and experiment. The results show that the proposed system is able to measure AE events with high resolution and over a wide dynamic frequency range.

Publication Date


  • 2018

Citation


  • B. Liu, Y. Ruan, Y. Yu, J. Xi, Q. Guo, J. Tong & G. Rajan, "Laser self-mixing fiber Bragg grating sensor for acoustic emission measurement," Sensors, vol. 18, (6) pp. 1956-1-1956-12, 2018.

Scopus Eid


  • 2-s2.0-85048726875

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2503&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1501

Start Page


  • 1956-1

End Page


  • 1956-12

Volume


  • 18

Issue


  • 6

Place Of Publication


  • Switzerland