Test The High Building Vibration And The Deformation During Earthquake by High Speed Camera With Moire Fringe Technique

Rong-Seng Chang; Chin-Wu Lin

doi:10.1117/12.944485

2 November 1984 Test The High Building Vibration And The Deformation During Earthquake by High Speed Camera With Moire Fringe Technique

Rong-Seng Chang, Chin-Wu Lin

Author Affiliations +

Proceedings Volume 0497, High Speed Photography, Videography, and Photonics II; (1984) https://doi.org/10.1117/12.944485
Event: 28th Annual Technical Symposium, 1984, San Diego, United States

Abstract

To measure the building vibration and deformation during earthquake or tvphone by high speed camera or video camera with the telephoto lens is the simple, low cost method, and it can give us the two dimensional information as well. With the grid pattern painted on the building and pass this image through another grid plate to the camera will generate a moire pattern on the film. The change of the shape of moire pattern will give us the vibration and 3 D deformation information to a very high degree of precision order. The factors of film deformation, air fluctuation are also discussed.

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Rong-Seng Chang and Chin-Wu Lin "Test The High Building Vibration And The Deformation During Earthquake by High Speed Camera With Moire Fringe Technique", Proc. SPIE 0497, High Speed Photography, Videography, and Photonics II, (2 November 1984); https://doi.org/10.1117/12.944485

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