Paper
17 September 2014 Highly reproducible Bragg grating acousto-ultrasonic contact transducers
Author Affiliations +
Abstract
Fiber optic acousto-ultrasonic transducers offer numerous applications as embedded sensors for impact and damage detection in industrial and aerospace applications as well as non-destructive evaluation. Superficial contact transducers with a sheet of fiber optic Bragg gratings has been demonstrated for guided wave ultrasound based measurements. It is reported here that this method of measurement provides highly reproducible guided ultrasound data of the test composite component, despite the optical fiber transducers not being permanently embedded in it.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Indu Fiesler Saxena, Narciso Guzman, and Robert A. Lieberman "Highly reproducible Bragg grating acousto-ultrasonic contact transducers", Proc. SPIE 9202, Photonics Applications for Aviation, Aerospace, Commercial, and Harsh Environments V, 92021O (17 September 2014); https://doi.org/10.1117/12.2064603
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KEYWORDS
Transducers

Composites

Ultrasonography

Fiber Bragg gratings

Waveguides

Fiber optics

Nondestructive evaluation

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