Transactions of the Visualization Society of Japan
Online ISSN : 1346-5260
ISSN-L : 1346-5252
Volume 43, Issue 2
Displaying 1-1 of 1 articles from this issue
  • Hiroki MATSUMOTO, Hideki FUNAMIZU
    2023 Volume 43 Issue 2 Pages 1-8
    Published: 2023
    Released on J-STAGE: March 31, 2023
    JOURNAL FREE ACCESS

    This study deals with a visualization method for vibration mode using the time averaged pulse stroboscopic digital holographic interferometry. The stroboscopic light is generated by a light chopping blade which is synchronized with an oscillation wave. In the experiment, the displacement of a vibrating cantilever thin plate measured by holographic method with different strobe light duty ratios and pulse phases is compared with that measured by the LDV. The holographic method can measure the instantaneous vibration displacement of a cantilever thin plate with vibration phase in 1% duty ratio of pulse strobe light. In another duty ratio condition, the maximum vibration displacement is visualized when duty ratios of light chopping are between 25% and 50%, despite the pulse phase. Duty ratios between 25% and 50% are useful for visualizing vibrational modes with pulsed stroboscopic digital holographic interferometry.

    Download PDF (2955K)
feedback
Top