Title :
Coiled-fiber sensor for vectorial measurement of magnetic field
Author :
Annovazzi-Lodi, Valerio ; Donati, Silvano ; Merlo, Sabina
Author_Institution :
Dipartimento di Elettronica, Pavia Univ., Italy
fDate :
12/1/1992 12:00:00 AM
Abstract :
New results on the polarization properties of a matched fiber-coil (i.e. one beat length per turn) immersed in a magnetic field are described. It is shown that both components Hy and Hz, perpendicular to the coil axis, can be simultaneously measured. Sensing coils of 1-cm diameter, with multiple turns of fiber, were fabricated. Using 100-turn heads, a sensitivity of 0.01 G was achieved for the vectorial fiber sensor
Keywords :
fibre optic sensors; light polarisation; magnetic field measurement; magneto-optical devices; 1 cm; coiled fibre sensor; magnetic field; matched fiber-coil; multiple turns; polarization properties; vectorial measurement; Birefringence; Coils; Gaussian processes; Magnetic field measurement; Magnetic fields; Magnetic sensors; Optical fiber polarization; Optical fiber sensors; Optical fiber theory; Sensor arrays;
Journal_Title :
Lightwave Technology, Journal of
