Share Email Print
cover

Proceedings Paper

Surface Roughness Measurement By 2-D Digital Correlation Of Speckle Images
Author(s): Bernhard Ruffing; Johannes Anschutz
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

An optical roughness measuring instrument has been developed for applications in the field of mechanical engineering. It is based upon the angular-speckle-correlation (ASC) method. Two-dimensional processing of the digitized speckle patterns is performed by means of a fast correlation algorithm. Alignment errors, which inevitably occur in practice and may impair the measurement, can be compensated by evaluating the position of the maximum value of the 2D-cross-correlation function of the speckle patterns. Experiments have been carried out using differently machined rough surface samples.

Paper Details

Date Published: 17 February 1987
PDF: 8 pages
Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); doi: 10.1117/12.941680
Show Author Affiliations
Bernhard Ruffing, Institut fur Mess- und Regelungstechnik (Federal Republic of Germany)
Johannes Anschutz, Institut fur Mess- und Regelungstechnik (Federal Republic of Germany)


Published in SPIE Proceedings Vol. 0814:
Photomechanics and Speckle Metrology
Fu-Pen Chiang, Editor(s)

© SPIE. Terms of Use
Back to Top