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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 27 — Sep. 20, 2005
  • pp: 5763–5772

Full-field vibrometry with digital Fresnel holography

Julien Leval, Pascal Picart, Jean Pierre Boileau, and Jean Claude Pascal  »View Author Affiliations


Applied Optics, Vol. 44, Issue 27, pp. 5763-5772 (2005)
http://dx.doi.org/10.1364/AO.44.005763


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Abstract

A setup that permits full-field vibration amplitude and phase retrieval with digital Fresnel holography is presented. Full reconstruction of the vibration is achieved with a three-step stroboscopic holographic recording, and an extraction algorithm is proposed. The finite temporal width of the illuminating light is considered in an investigation of the distortion of the measured amplitude and phase. In particular, a theoretical analysis is proposed and compared with numerical simulations that show good agreement. Experimental results are presented for a loudspeaker under sinusoidal excitation; the mean quadratic velocity extracted from amplitude evaluation under two different measuring conditions is presented. Comparison with time averaging validates the full-field vibrometer.

© 2005 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.2880) Holography : Holographic interferometry
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.4630) Instrumentation, measurement, and metrology : Optical inspection

History
Original Manuscript: January 4, 2005
Revised Manuscript: April 27, 2005
Manuscript Accepted: April 28, 2005
Published: September 20, 2005

Citation
Julien Leval, Pascal Picart, Jean Pierre Boileau, and Jean Claude Pascal, "Full-field vibrometry with digital Fresnel holography," Appl. Opt. 44, 5763-5772 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-27-5763

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