Title :
Lorentzian force type fibre-optic AC magnetic sensor realising frequency-independent sensitivity
Author :
Okamura, Hiroyuki ; Fujii, Yuka
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa
fDate :
8/18/1988 12:00:00 AM
Abstract :
A Lorentzian force type fibre-optic magnetic sensor is reported attaining frequency-independent sensitivity in the range 1 Hz to 10 kHz with minimum detectable field down to 50 nT. It is also shown that this technique can introduce frequency superimposition, which enables measurement of AC magnetic fields at different points simultaneously with one interferometer
Keywords :
fibre optic sensors; light interferometers; magnetic field measurement; magnetometers; 1 to 10000 Hz; Lorentzian force type sensor; fibre-optic AC magnetic sensor; fibre-optic magnetic sensor; frequency superimposition; frequency-independent sensitivity; magnetic field measurement; minimum detectable field; one interferometer; simultaneous multipoint measurement;
Journal_Title :
Electronics Letters
