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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 3 — Jan. 20, 2005
  • pp: 337–343

Some opportunities for vibration analysis with time averaging in digital Fresnel holography

Pascal Picart, Julien Leval, Denis Mounier, and Samuel Gougeon  »View Author Affiliations


Applied Optics, Vol. 44, Issue 3, pp. 337-343 (2005)
http://dx.doi.org/10.1364/AO.44.000337


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Abstract

Features offered by the combination of time averaging and digital Fresnel holography are investigated. In particular, we introduce the concept of the zero-crossing phase of Bessel fringes, which allows a highly contrasted determination of the dark fringes in the hologram. We discuss some particularities of the digital reconstruction and show how time-averaged digital holography can be used to study vibration drifts. Experiment results are presented in the case of a loudspeaker under a sinusoidal excitation; digital and analogical holography are also compared.

© 2005 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.2880) Holography : Holographic interferometry
(100.2000) Image processing : Digital image processing
(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

Citation
Pascal Picart, Julien Leval, Denis Mounier, and Samuel Gougeon, "Some opportunities for vibration analysis with time averaging in digital Fresnel holography," Appl. Opt. 44, 337-343 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-3-337

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