Motion sensitive security system
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United States of America Patent
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-
Apr 22, 1986
Issued Date -
N/A
app pub date -
Sep 17, 1984
filing date -
Nov 23, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The preferred arrangement utilizes a magnet suspended at the center of an elastic cord over a pickup coil. Movement of the magnet is sensed by the coil in that signals are generated by such movement. The signals are processed in the combination of a time delay circuit and a comparator to provide an output which is a measure of acceleration of the element on which the elastic cord is mounted and, in one form, by a measure of jerk in a similar time delay circuit and comparator combination.
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