Method and apparatus for detecting water on a surface of an object
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 4, 2003
Grant Date -
Nov 7, 2002
app pub date -
May 3, 2001
filing date -
May 3, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for detecting and removing water from a surface of a moving metal sheet in continuous treatment line to prevent the formation of water stains thereon. A selected surface area of the moving metal sheet is illuminated with infrared radiation having a wavelength substantially absorbed by water, and an optical sensor system is employed to view images reflected off the selected surface area. An optical bandpass filter limits transmission of infrared light to within a specific range of wavelengths known to be strongly absorbed by water. The sensor assembly produces a signal representative of the intensity of the reflected light. If the intensity signal is lower than a predetermined level, water is detected and the signal may be used to trigger a control device that sounds alarms, records the event, or otherwise controls the environment of the object so that detected water may be removed to prevent the formation of water stains. The present invention is particularly suited for detecting the presence of water on a moving steel sheet treated in a continuous coating line.
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