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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2865

Title: FRINGE SPACING AND STRAIN ANALYSIS USING LASER MOIR´E FRINGE PROJECTION TECHNIQUE
Authors: Setegn, Ayalew
Advisors: Prof. A.V Gholap
Keywords: FRINGE SPACING
PROJECTION TECHNIQUE
Copyright: Jun-2009
Date Added: 10-May-2012
Publisher: AAU
Abstract: The spacing between fringes is crucial for testing materials based on Moir´e technique. In this work, the spacing between two consecutive bright (or dark) fringes, C , is determined, for different grating separation , . The behavior shows that as the angle between the gratings increases, the fringe spacing decreases. For gratings of 100 lines/mm and 300 lines/mm pitches adjusted parallel to each other, it is confirmed that the fringe spacing equals 0.005000 mm. This is equal to the value for beat. Moreover, a moir´e fringe projection technique applicable for deformation measurement is done experimentally. The results show that moir´e fringe projection technique is suitable for deformation analysis.
URI: http://hdl.handle.net/123456789/2865
Appears in:Thesis - Physics

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