Analysis and Modeling of Laser Measurement System Performance for Wood Surface

[+] Author and Article Information
S. M. Yoo, D. A. Dornfeld

Dept. of Mechanical Engineering, University of California, Berkeley, CA 94720

R. L. Lemaster

Forest Products Laboratory, University of California, Richmond, CA 94804

J. Eng. Ind 112(1), 69-77 (Feb 01, 1990) (9 pages) doi:10.1115/1.2899297 History: Received June 01, 1988; Revised March 01, 1989; Online April 08, 2008


An attempt was made to characterize roughness using a laser and an optical detector which outputs precise information about the roughness change. The performance of the laser detector system is evaluated by modeling the sensor system and using a sinusoidal profile model as a simulated rough surface. The influence of surface roughness and sensor structure on the system performance is studied. The profile is also reproduced for comparison with the actual profile. A wood surface was chosen to be the test surface because of its unusual reflectivity. A two-dimensional profile analysis was made to find a relationship between the roughness and some characteristic parameter values of the detected profile.

Copyright © 1990 by The American Society of Mechanical Engineers
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