1 March 1988 Objective Speckle Method Using Stick-On Foil And Its Applications
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Abstract
Objective speckle from a stick-on foil is a new approach to applying the objective white light speckle method to in-plane displacement measurements. By a relatively easy technique a thin aluminum foil is mounted onto the specimen surface and a random grating is scratched onto it, yielding high reflectance and fine optical details. After double exposure by a direct recording system without using a lens, the resulting holographic film possesses a broad spatial spectrum and displacement information. Full-field contour maps of equal displacement can be obtained that are of good contrast and high sensitivity and that have a large adjustable measurement range. The method can be applied to practical engineering problems for both plane and developable curved surfaces.
Jinhu Han, Jinhu Han, Meirong Tu, Meirong Tu, } "Objective Speckle Method Using Stick-On Foil And Its Applications," Optical Engineering 27(3), 273207 (1 March 1988). https://doi.org/10.1117/12.7977913 . Submission:
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