Compact optical fiber sensor smart node |
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Authors: | Lloyd Seth W Newman Jason A Wilding Daniel R Selfridge Richard H Schultz Stephen M |
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Affiliation: | Department of Electrical and Computer Engineering, Brigham Young University, 464 CB, Provo, UT 84602, USA. |
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Abstract: | We present a new optical fiber sensor interrogator specifically designed for an embedded instrumentation system. The proposed system consists of a super luminescent diode as a broadband source, a high speed tunable micro-electro-mechanical system (MEMS) filter, photodetector, and an integrated microprocessor for data aggregation, processing, and communication. The entire system is integrated together in a compact package to create a fiber "smart" sensor. The system is capable of interrogating a variety of multiplexed fiber sensors, processing the data, and communicating the results digitally. As an example, the system has been calibrated with an array of fiber Bragg grating sensors. |
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