DocumentCode
1254479
Title
Fiber-optic magnetic sensor utilizing the Lorentzian force
Author
Okamura, Haruo
Author_Institution
NTT Transmission Syst. Lab., Kanagawa, Japan
Volume
8
Issue
10
fYear
1990
fDate
10/1/1990 12:00:00 AM
Firstpage
1558
Lastpage
1564
Abstract
A fiber-optic magnetic sensor whose design is based on the Lorentzian force is presented. Optical phase sensitivities of 0.67 and 0.11 rad/(A/m) for AC and DC magnetic fields are obtained with a linearity of three decades using 100 mm of Al-coated sensor fiber. A configuration for multipoint AC field measurement with frequency-independent sensitivity is proposed. Electric current is measurable with a 2.6-rad/μA sensitivity
Keywords
aluminium; coatings; electric current measurement; fibre optic sensors; magnetic field measurement; 100 nm; AC magnetic fields; Al; Al-coated sensor fiber; DC magnetic fields; Lorentzian force; electric current measurement; fiber-optic magnetic sensor; frequency-independent sensitivity; multipoint AC field measurement; Amorphous magnetic materials; Current; Force measurement; Force sensors; Magnetic field measurement; Magnetic materials; Magnetic sensors; Magnetostriction; Optical fiber sensors; Optical sensors;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/50.59196
Filename
59196
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