There has been considerable interest in developing high sensitivity fiber optic magnetic field sensors using primarily interferometric configurations In this paper, a fiber optic sensor based on the extrinsic Fabry-Perot interferometer (EFPI) is demonstrated to measure low DC-magnetic fields (100 Oe - 40,000 Oe). A Metglas (Fe/sub 77.5/B/sub 15/Si/sub 7.5/) wire-based magnetostrictive transducer is used as the reflector in the EFPI sensor. The simple sensor geometry gives both low vibration sensitivity and high temperature stabilization.
Fiber optic EFPI-based sensor for low magnetic field measurement
1996-01-01
178767 byte
Conference paper
Electronic Resource
English
Fiber Optic EFPI-Based Sensor for Low Magnetic Field Measurement
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