Dynamic Computer Aided Video Holometry

G. M. Brown; G. H. Smith

doi:10.1117/12.962729

25 April 1990 Dynamic Computer Aided Video Holometry

G. M. Brown, G. H. Smith

Proceedings Volume 1162, Laser Interferometry: Quantitative Analysis of Interferograms: Third in a Series; (1990) https://doi.org/10.1117/12.962729
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

Currently, high spatial density/high resolution data bases of the deformation of structures are available using Computer Aided Holometry (CAH) for (1) static deformation, (2) periodic motion and (3) dynamic deformation at widely separated instances of time. However, many practical structures are nonlinear and there exists a need to measure how a surface moves as a function of time. This paper presents a high frame rate, shifted phase video holographic method for measuring surface motion as a function of time. The theory, hardware, simulation results and limitations are discussed.

Citation Download Citation

G. M. Brown and G. H. Smith "Dynamic Computer Aided Video Holometry", Proc. SPIE 1162, Laser Interferometry: Quantitative Analysis of Interferograms: Third in a Series, (25 April 1990); https://doi.org/10.1117/12.962729

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