This work is concerning with the use of the fringe projection technique to determine amplitude and frequency of a vibrating one-dimensional structure. Fringe projection on to a flat fixed end large cantilever, plastic made, excited mechanically by means of a loudspeaker is studied. By means of a CCD camera, images of the projected fringes are registered and subtracted to video ratio. As a result, a moiré pattern is obtained and seen on a monitor screen. It is shown that the vibration amplitude is obtained from the period of the moiré pattern, and the frequency by means of the synchronization (triggering) of the moiré images. The future of this investigation is to apply this technique to electricity transmission lines.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Determination of mechanical vibration properties of one-dimensional structures using a fringe projection method


    Contributors:


    Publication date :

    2005-01-01


    Size :

    325036 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Three-dimensional pattern recognition using fringe projection (Invited Paper) [4435-06]

    Ferreira, C. / Esteve-Taboada, J. J. / Garcia, J. et al. | British Library Conference Proceedings | 2001


    Phase wrap reduction using fringe pattern projection

    Arevalillo Herraez, M. / Burton, D. R. / Lalor, M. J. et al. | British Library Conference Proceedings | 1996


    Detection of defects in sheet metal by using fringe projection system

    Weckenmann,A. / Ernst,R. / Velgan,R. et al. | Automotive engineering | 2004



    Performance of fringe-projection systems for surface topography measurement

    Wykes, C. / Morshedizadeh, M. R. / Institute of Physics; Applied Optics Division et al. | British Library Conference Proceedings | 1990