DocumentCode
993072
Title
Phase shift nulling DC-field fibre-optic magnetometer
Author
Kersey, A.D. ; Corke, M. ; Jackson, D.A.
Author_Institution
University of Kent at Canterbury, Physics Laboratory, Canterbury, UK
Volume
20
Issue
14
fYear
1984
Firstpage
573
Lastpage
574
Abstract
A closed-loop DC-field fibre-optic magnetometer is described which utilises the dependence of the AC magneto-strictive responsitivity of a metallic glass sensing element on the local DC field in order to detect low-frequency or DC changes in the total local field. A detection sensitivity of -2 ¿Gs has been demonstrated at frequencies below 2 Hz.
Keywords
fibre optics; magnetic field measurement; magnetometers; nonelectric sensing devices; AC magnetostrictive responsitivity; fibre-optic magnetometer; local field LF variations; magnetic field measurement; metallic glass sensing element; nulling DC-field; phase shift closed-loop type;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19840396
Filename
4248869
Link To Document