Passive smoke plume opacity monitor
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United States of America Patent
Stats
-
Mar 23, 1982
Grant Date -
N/A
app pub date -
Dec 17, 1979
filing date -
Dec 17, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the smoke opacity monitor disclosed herein, a measurement of opacity is obtained by measuring the proportion of polarized light from the background sky which is detectable through the smoke plume. Compensation and normalization is provided to minimize errors generated by illumination of the plume itself and for the overall intensity of the background sky light.
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