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Fiber Tip Based Fiber Optic Sensor Systems (ISR IP)ISR intellectual property available to license
Inventors
U.S. Patent: 6,901,176
Description
Researchers at the University of Maryland have developed a fiber tip based Fabry-Perot optical sensor system (FTFP) for acoustic, pressure, and acceleration measurements. The system uses a low coherence interferometry technique for the optical component and a novel multistep algorithm to recover the optical phase from interference pattern.
The advantages of such system sensor are as follows:
· High sensitivity (1 rad/Pa) · Insensitivity to the electromagnetic interference · Large bandwidth (up to 7.5 kHz for the sensor shown on the left) · Multiplexible for a distributed sensor array and phase matched sensors · Light weight · Can be miniaturized to the level of fiber optic diameter for MEMS applications · Can be used in harsh environments · Has remote sensing capabilities
This system can be developed into a fiber tip-based microphone, velocity sensor, accelerometer sensor, and fiber optic acoustic intensity sensor. Its applications range from the aerospace industry to the architecture industry. Specific applications include acoustic emission measurements in computer hard disk drives; pressure measurements for ignition chambers of automobiles; integrated distributed pressure sensor arrays for smart wing structures; distributed acoustic pressure array panels for acoustic measurement in concert halls and conference rooms; health monitoring technologies; and background noise suppression systems in automotive telematics.
For more information
Find more ISR IP
ISR-IP-Yu ISR-IP-nano ISR-IP-fiber-optic-sensor ISR-IP-sensors
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