Effect of external perturbations on fiber-optic magnetic sensors

Author

Bucholtz, F. ; Koo, K.P. ; Dandridge, A.

Author_Institution

US Naval Res. Lab., Washington, DC, USA

Volume

6

Issue

4

fYear

1988

fDate

4/1/1988 12:00:00 AM

Firstpage

507

Lastpage

512

Abstract

The effects of external nonmagnetic perturbations on a fiber-optic magnetic sensor are analyzed theoretically. It is shown that the deleterious effects of these perturbations can be controlled by maintaining the DC magnetic field at prescribed levels. Experiments have been performed with externally applied stresses and accelerations (vibrations) that validate the theory and yield values for the stress and acceleration responsivities of the sensors studied in this investigation. The analysis and techniques given apply equally well to any interferometric sensor using nonlinear transduction mechanisms

Keywords

fibre optic sensors; magnetic field measurement; DC magnetic field; acceleration responsivities; accelerations; external nonmagnetic perturbations; externally applied stresses; fiber-optic magnetic sensors; interferometric sensor; nonlinear transduction mechanisms; stress responsivity; vibrations; Acceleration; Amorphous magnetic materials; Magnetic field induced strain; Magnetic field measurement; Magnetic sensors; Magnetostriction; Optical fiber sensors; Phase measurement; Strain measurement; Stress;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.4032

Filename

4032