Continuous measurement of the surface roughness of a cold-rolled product
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 7, 1989
Grant Date -
N/A
app pub date -
Dec 5, 1986
filing date -
Dec 5, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light beam, e.g. from a laser, is transmitted onto the surface of a cold-rolled product such as steel strip. The light beam has a wavelength at least equal to the maximum roughness of the product surface. The reflected light energy is measured, preferably in the specular direction with respect to the incident beam; the surface roughness is deduced from that measurement. The light beam may be interrupted to provide two beams alternately incident on the same spot at different angles.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully