Perimeter detection using fiber optic sensors
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United States of America Patent
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Feb 10, 2009
Grant Date -
Apr 14, 2005
app pub date -
Aug 13, 2004
filing date -
Aug 13, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fiber optic perimeter detection system includes a receiver to receive output light signals from sensors positioned at different regions, each sensor including a sensing fiber. Each sensor generates an output light signal having a specified wavelength, the output light signal having a property that varies when stress is induced in the sensing fiber. The perimeter detection system includes a memory to store information related to a mapping between the wavelengths of the output light signals and the regions where the sensors are positioned.
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