OPTICAL SENSOR SYSTEMS AND METHODS
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United States of America Patent
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Issued Date -
Dec 27, 2012
app pub date -
Jun 27, 2011
filing date -
Jun 27, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Optical sensors and sensing methods are provided. A particular method includes applying light to a first end of an optical fiber. Light reflected by at least one of a first photonic crystal sensor coupled to a second end of the optical fiber and a second photonic crystal sensor coupled to the second end of the optical fiber is detected. The first photonic crystal sensor exhibits a first reflection spectrum that changes responsive a first sensed parameter and the second photonic crystal sensor exhibits a second reflection spectrum that changes responsive a second sensed parameter. A parameter value of at least one of the first sensed parameter and the second sensed parameter is determined based on the detected light.
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International Classification(s)
- G01H:MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC....
- G01K:MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT;....
- G01L:MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL ....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G01P:MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, D....
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