NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Water Pollution Detection by Reflectance MeasurementsMeasurement of the intensity of light reflected from various planar liquid surfaces has been performed. The results of this brief study show that the presence of a film of foreign material floating on a reference substrate is easily detected by reflectance measurement if the two liquids possess significantly different refractive indices, for example, oil (n = 1.40) and water (n = 1.33). Additional study of various optical configurations, and the building and testing of a prototype monitoring device revealed that the method is sufficiently practical for application to continuous water quality monitoring.
Document ID
20000021207
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Goolsby, A. D.
(Shell Development Co. Emeryville, CA United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1971
Subject Category
Environment Pollution
Report/Patent Number
AIAA Paper 71-1069
Meeting Information
Meeting: Joint Conference on Sensing of Environmental Pollutants
Location: Palo Alto, CA
Country: United States
Start Date: November 8, 1971
End Date: November 10, 1971
Sponsors: Institute of Electrical and Electronic Engineers, National Oceanographic and Atmospheric Administration, Environmental Protection Agency, American Chemical Society, American Inst. of Aeronautics and Astronautics, NASA Headquarters, Instrument Society of America
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available