Detection of laser-generated Rayleigh waves by recording their IR radiation

Alexander P. Kubyshkin; M. Paul; Walter Arnold

doi:10.1117/12.337541

20 January 1999 Detection of laser-generated Rayleigh waves by recording their IR radiation

Alexander P. Kubyshkin, M. Paul, Walter Arnold

Proceedings Volume 3688, 6th International Conference on Industrial Lasers and Laser Applications '98; (1999) https://doi.org/10.1117/12.337541
Event: 6th International Conference on Industrial Lasers and Laser Applications '98, 1998, Shatura, Moscow Region, Russian Federation

Abstract

The possibility of remote detection of ultrasonic waves by measuring the IR radiation from a surface, has been shown experimentally. This effect is based on the adiabatic propagation of the surface waves. Rayleigh waves were excited by a pulsed Nd:YAG laser on the surface of a steel sample at temperatures close to 1000 degrees C. The surface temperature was estimated independently by the direct measurement of the surface vibration using a laser heterodyne interferometer. Good correlation of the time-of- flight data of the Rayleigh wave propagation, as well as in evaluated and measured temperature deviation was observed. The possibility of application of this laser ultrasonic technique of material properties evaluation at elevated temperatures is discussed.

Citation Download Citation

Alexander P. Kubyshkin, M. Paul, and Walter Arnold "Detection of laser-generated Rayleigh waves by recording their IR radiation", Proc. SPIE 3688, 6th International Conference on Industrial Lasers and Laser Applications '98, (20 January 1999); https://doi.org/10.1117/12.337541

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KEYWORDS

Temperature metrology

Infrared radiation

Ultrasonics

Pulsed laser operation

Signal detection

Interferometers

Sensors

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