Miniaturized fiber optic magnetic field sensors

Ki D. Oh; Jaydeep Ranade; Vivek Arya; Anbo Wang; Richard O. Claus

doi:10.1117/12.335739

11 January 1999 Miniaturized fiber optic magnetic field sensors

Ki D. Oh, Jaydeep Ranade, Vivek Arya, Anbo Wang, Richard O. Claus

Proceedings Volume 3538, Process Monitoring with Optical Fibers and Harsh Environment Sensors; (1999) https://doi.org/10.1117/12.335739
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

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.

Citation Download Citation

Ki D. Oh, Jaydeep Ranade, Vivek Arya, Anbo Wang, and Richard O. Claus "Miniaturized fiber optic magnetic field sensors", Proc. SPIE 3538, Process Monitoring with Optical Fibers and Harsh Environment Sensors, (11 January 1999); https://doi.org/10.1117/12.335739

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