Počet záznamů: 1

Frequency Shifted Digital Holography for the Measurementof Vibration with Very Small Amplitudes

  1. 1.
    0357974 - UFP-V 2011 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
    Lédl, Vít - Václavík, Jan - Doleček, R. - Kopecký, V.
    Frequency Shifted Digital Holography for the Measurementof Vibration with Very Small Amplitudes.
    AIP Conference Proceedings 9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course. Vol. 1253. Melville: American Institute of Physics, 2010 - (Tomasini, E.), s. 415-419. AIP, 1253. ISBN 978-0-7354-0802-9. ISSN 0094-243X.
    [International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course/9th./. Ancona (IT), 22.06.2010-25.06.2010]
    Grant CEP: GA AV ČR 1QS100820502
    Výzkumný záměr: CEZ:AV0Z20430508
    Klíčová slova: small vibration amplitudes * frequency shifted * digital holography
    Kód oboru RIV: BH - Optika, masery a lasery
    http://link.aip.org/link/?APCPCS/1253/415/1

    A method for measurements of nanometer-scale vibrations based on frequency shifted time average digital holographic interferometry employing the principle of the phase shifting technique is presented. This approach allows a reduction of noise and results in a higher sensitivity. The method has been applied to study the normalized vibration amplitude and the structure of vibration modes of piezoelectric transformers and actuators. In addition, quantitative information on the vibration amplitudes has been obtained in some cases.
    Trvalý link: http://hdl.handle.net/11104/0196132