Fully remote generation and detection of ultrasonic waves for cure monitoring in epoxy materials using an Nd:YAG laser and optical fiber interferometer

David J. Booth; Biswanath Mitra

doi:10.1117/12.316968

21 July 1998 Fully remote generation and detection of ultrasonic waves for cure monitoring in epoxy materials using an Nd:YAG laser and optical fiber interferometer

David J. Booth, Biswanath Mitra

Author Affiliations +

Proceedings Volume 3330, Smart Structures and Materials 1998: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials; (1998) https://doi.org/10.1117/12.316968
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

A fully remote all-optical technique for the generation and detection of ultrasonics in epoxy material. A sensitive wide-bandwidth optical fiber interferometer is used to remotely detect the arrival of these waves at the rear surface of the material. By monitoring the arrival time of these waves, the acoustic velocity can be determined. The technique has been used to monitor the acoustic velocity throughout the complete curing cycle of a rapid cure epoxy material.

Citation Download Citation

David J. Booth and Biswanath Mitra "Fully remote generation and detection of ultrasonic waves for cure monitoring in epoxy materials using an Nd:YAG laser and optical fiber interferometer", Proc. SPIE 3330, Smart Structures and Materials 1998: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (21 July 1998); https://doi.org/10.1117/12.316968

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