Title :
A passive high sensitivity magnetic field sensor based on metallic glass wire
Author :
Coghill, P. ; Bassett, I.M. ; Wong, D. ; Poole, S.B.
Author_Institution :
Opt. Fibre Technol. Centre, Sydney Univ., NSW, Australia
fDate :
8/1/1996 12:00:00 AM
Abstract :
The responsitivity and sensitivity of fiber interferometric sensors based on magnetostrictive transducers consisting of up to 25 m of annealed metallic glass wire are reported. The frequency and temperature range of these sensors is examined both theoretically and experimentally. The performance of these sensors is acceptable for the transient electromagnetic method of geomagnetic surveying
Keywords :
annealing; fibre optic sensors; geomagnetism; light interferometers; magneto-optical sensors; magnetostrictive devices; metallic glasses; sensitivity; surveying; transducers; annealed metallic glass wire; fiber interferometric sensors; geomagnetic surveying; magnetostrictive transducers; metallic glass wire; passive high sensitivity magnetic field sensor; responsitivity; temperature range; transient electromagnetic method; Amorphous magnetic materials; Annealing; Frequency; Glass; Magnetic sensors; Magnetostriction; Optical fiber sensors; Temperature sensors; Transducers; Wire;
Journal_Title :
Lightwave Technology, Journal of
