The Objective Speckle Of Stickling Foil And Its Applications

Han Jinhu; Tu Meirong

doi:10.1117/12.941686

17 February 1987 The Objective Speckle Of Stickling Foil And Its Applications

Han Jinhu, Tu Meirong

Proceedings Volume 0814, Photomechanics and Speckle Metrology; (1987) https://doi.org/10.1117/12.941686
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

Objective speckle of sticking foil is a new approach to apply the objective speckle method into various materials for in-plane displacement measurememts. Specimen surface has been treated by sticking a thin layer of aluminium foil and scratching a random grating by relatively easy technique in order to form high reflectance and fine optical details. After double exposes by direct recording system without using lenses, the holographic film possesses a broad spatial spectrum range and displacement information. Full-field contour maps are obtained with clear lines of equal displacement, high sensitivity, and large adju-stable measurement range. It is available for practical engineering problems and for both plane and developable curved surfaces.

Citation Download Citation

Han Jinhu and Tu Meirong "The Objective Speckle Of Stickling Foil And Its Applications", Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); https://doi.org/10.1117/12.941686

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