Title :
Optical phase retardation of Lorentzian force-type fibre-optic magnetic sensor
Author_Institution :
NTT Transmission Syst. Labs., Yokosuka, Japan
fDate :
5/11/1989 12:00:00 AM
Abstract :
The sensing fibre of the Lorentzian force-type fibre-optic magnetic sensor is shown to behave as a clamped-clamped vibrating beam with a static deflection. Resultant optical phase retardation with the Lorentzian-force frequency is proportional to the magnetic field strength. Sensitivity enhancement is also suggested,based on the analysis.
Keywords :
fibre optic sensors; magnetic field measurement; Lorentzian force-type; clamped-clamped vibrating beam; fibre-optic magnetic sensor; magnetic field strength; sensing fibre; static deflection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890422
