11 January 1999 Miniaturized fiber optic magnetic field sensors
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Abstract
Metglas based extrinsic miniaturized fiber optic magnetic field sensor system has been designed and fabricated for measuring DC magnetic fields. A simple geometry and modification of sensor gage show 98 percent suppression of thermally induced output variation and 92 percent of fringe visibility. A single-board microcomputer is used for accurate signal demodulation and calibration. The system has demonstrated a resolution of better than 100 nT over a range of 100 nT to 40,000 nT.
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Ki D. Oh, Ki D. Oh, Jaydeep Ranade, Jaydeep Ranade, Vivek Arya, Vivek Arya, Anbo Wang, Anbo Wang, Richard O. Claus, Richard O. Claus, } "Miniaturized fiber optic magnetic field sensors", Proc. SPIE 3538, Process Monitoring with Optical Fibers and Harsh Environment Sensors, (11 January 1999); doi: 10.1117/12.335739; https://doi.org/10.1117/12.335739
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