Application Of Moire Method To Measurement Of High Speed Deformation

Takao Tsuno; Yoshio Nakamura

doi:10.1117/12.955186

14 September 1977 Application Of Moire Method To Measurement Of High Speed Deformation

Takao Tsuno, Yoshio Nakamura

Proceedings Volume 0097, 12th Intl Congress on High Speed Photography; (1977) https://doi.org/10.1117/12.955186
Event: 12th International Congress on High Speed Photography, 1976, Toronto, Canada

Abstract

The purpose of the investigation is measurement of a diffusing surface, normal to a certain reference plane, changing rapidly with time. In this paper are, in the first place, described basic study, based on geometrical optics, of Moire topography using an incoherent or a coherent light source in two procesess. The contents are below; (1) generating the best quality of equispacing fringes on the surface, (2) formation of Moire contour lines and height difference between the most adjacent lines. Next is shown a time resolved Moire topography consisting of casting fringe system using Xe-flash as a light source and a high speed framing camera et al, with a ten microseconds of time resolution and about 150 microns of contour sensitivity. As a typical application when a thin plate was received an impact force, the deformations of the surface are shown in a series of contour lines pictures.

Citation Download Citation

Takao Tsuno and Yoshio Nakamura "Application Of Moire Method To Measurement Of High Speed Deformation", Proc. SPIE 0097, 12th Intl Congress on High Speed Photography, (14 September 1977); https://doi.org/10.1117/12.955186

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