Send to:

Choose Destination
See comment in PubMed Commons below
Appl Opt. 2005 Jan 20;44(3):337-43.

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

Author information

  • 1Ecole Nationale SupĂ©rieure d'IngĂ©nieurs du Mans, rue Aristote, 72085 Le Mans 9, France.


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.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk