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Proceedings Paper

Optical detection of ultrasound: characterization of transducers
Author(s): Miguel A. Bello Jiménez; Ponciano Rodríguez Montero; Rogelio Amezola Luna; Alfredo A. Elias
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Paper Abstract

We show preliminary results of the implantation of a stabilized Michelson interferometer for the characterization of ultrasonic transducers. The detection system consists of a Michelson interferometer in which a feedback system has been integrated to set the interferometer at the linear region of detection and to compensate optical phase changes introduced by environmental vibrations; this allows us to work in the most sensible region of the system and obtain output signals proportional to the detected displacements (< 10 nm). The obtained results show that it is possible to detect ultrasonic displacements close to 0,2 nm in a bandwidth of 3 MHz using a He-Ne laser with an output power of 1 mW. Preliminary characterization of ultrasonic displacements generated by an ultrasonic transducer immersed in a water tank was performed using this interferometer.

Paper Details

Date Published: 10 February 2006
PDF: 8 pages
Proc. SPIE 6046, Fifth Symposium Optics in Industry, 604612 (10 February 2006); doi: 10.1117/12.674478
Show Author Affiliations
Miguel A. Bello Jiménez, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Ponciano Rodríguez Montero, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Rogelio Amezola Luna, Ctr. Nacional de Metrología (Mexico)
Alfredo A. Elias, Ctr. Nacional de Metrología (Mexico)

Published in SPIE Proceedings Vol. 6046:
Fifth Symposium Optics in Industry
Eric Rosas; Rocío Cardoso; Juan C. Bermudez; Oracio Barbosa-García, Editor(s)

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