Title :
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
fDate :
4/1/1988 12:00:00 AM
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;
Journal_Title :
Lightwave Technology, Journal of
