17 September 1997 Phase-shifted double single-pulse additive stroboscopic TV holography for the measurement of high-frequency vibrations using low-bandwidth phase-modulation devices
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Proceedings Volume 3098, Optical Inspection and Micromeasurements II; (1997) https://doi.org/10.1117/12.281156
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany
Abstract
We present a novel technique for the application of stroboscopic additive TV-holography to the measurement of vibrations using temporal phase-shifting. Based on a previous concept - contrived and developed by the same authors - that used two illumination pulses within each vibration cycle and interpulse phase modulation at the same rate that the vibration of the object, this new technique implements and analogous phase modulation scheme but between two swiftly alternating bursts of single pulses with different phase within each video frame, rather than using true double-pulses, thus allowing quantitative measurements to be performed with stroboscopic illumination keeping the characteristics of stability and temporal resolution of the double-pulse additive stroboscopic technique but with the additional benefit of reaching high vibration frequencies with low bandwidth phase modulators.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jose M. Alen, Jose M. Alen, Angel F. Doval, Angel F. Doval, J. Bugarin, J. Bugarin, Benito Vasquez Dorrio, Benito Vasquez Dorrio, Jose Carlos Lopez Vazquez, Jose Carlos Lopez Vazquez, Antonio Fernandez, Antonio Fernandez, Jesus Blanco-Garcia, Jesus Blanco-Garcia, Mariano Perez-Amor, Mariano Perez-Amor, J. L. Fernandez, J. L. Fernandez, } "Phase-shifted double single-pulse additive stroboscopic TV holography for the measurement of high-frequency vibrations using low-bandwidth phase-modulation devices", Proc. SPIE 3098, Optical Inspection and Micromeasurements II, (17 September 1997); doi: 10.1117/12.281156; https://doi.org/10.1117/12.281156
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