Sensing vertical and horizontal visibility
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United States of America Patent
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-
May 28, 1985
Grant Date -
N/A
app pub date -
Sep 20, 1982
filing date -
Sep 20, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Unattended measurements of horizontal and vertical visibility are broadcast, along with the results of time trend analysis so as to provide for short-term prediction of visibility. A calibration mechanism is provided along with sensors to determine mis-alignment of the apparatus. Broadcast information is particularly useful to pilots approaching unattended airports for landing.
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