Surface-Roughness Monitoring For Industrial Quality Control

P. Cielo; G. Vaudreuil; M. Dufour

doi:10.1117/12.966957

1 January 1987 Surface-Roughness Monitoring For Industrial Quality Control

P. Cielo, G. Vaudreuil, M. Dufour

Proceedings Volume 0744, Lasers in Motion for Industrial Applications; (1987) https://doi.org/10.1117/12.966957
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

A number of surface-monitoring optical techniques are presented for the on-line quality control of materials produced at high production rates. A laser-scattering approach is described for surface-quality inspection of the hot-dip zinc coating in a steel galvanizing line. The detection of localized specular reflectivity, coupled to the fast sheet motion, proved to be an effective method to monitor coating properties such as spangle grain size. Similar investigations are described for the on-line inspection of polymer-coated electric cable. Our approach for such an inspection problem is based on the projection of a uniform-intensity laminar beam across the cable and on the bandpass-filtered detection of the transmitted beam to obtain a resolution better than 5 μm independently of the extruded-cable vibrations. Results of in-plant trials are reported.

Citation Download Citation

P. Cielo, G. Vaudreuil, and M. Dufour "Surface-Roughness Monitoring For Industrial Quality Control", Proc. SPIE 0744, Lasers in Motion for Industrial Applications, (1 January 1987); https://doi.org/10.1117/12.966957

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available