Title :
High sensitivity fiber-optic magnetic field sensors based on iron garnets
Author_Institution :
Div. of Electromagn. Technol., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
June 27 1994-July 1 1994
Abstract :
Ferrimagnetic iron garnet crystals form the basis of magneto-optic magnetic field sensors which offer high sensitivity, broadband frequency response, and fiber-optic compatability. Recent developments at NIST promise still greater performance for these sensors based on the magneto-optic Faraday effect. Specifically, new sensor head designs incorporating flux concentration devices and novel experimental iron garnet compositions demonstrate the potential for enhancing the sensitivity of iron garnet sensors by two to three orders of magnitude.<>
Keywords :
Faraday effect; fibre optic sensors; iron compounds; magnetic field measurement; magneto-optical devices; JkFe5O12; NIST; broadband frequency response; ferrimagnetic iron garnet crystals; fiber-optic compatability; fiber-optic magnetic field sensors; flux concentration devices; magneto-optic Faraday effect; sensitivity; sensor head design; Crystals; Ferrimagnetic materials; Frequency response; Garnets; Iron; Magnetic sensors; Magnetooptic devices; Magnetooptic effects; Optical fiber devices; Optical fiber sensors;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333185
