Tornado warning system
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United States of America Patent
Stats
-
Mar 14, 1989
Grant Date -
N/A
app pub date -
Feb 10, 1987
filing date -
Feb 10, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tornado warning system uses a superhetrodyne receiver to detect electromagnetic energy produced by a tornado. The automatic gain control signal of the receiver is used to generate an intermediate signal having a time duration corresponding to the time when the automatic gain control is at or above a predetermined level. The intermediate signal is of constant amplitude and is integrated. Upon the integration reaching a predetermined level, an alarm initiate signal is produced which turns on an alarm drive and, in turn, sounds an alarm.
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Family
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Cited Art Landscape
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