Title :
Measurement of angular rotation using a long period fiber grating in a self-referenced fiber optic intensity sensor
Author :
Baptista, J.M. ; Santos, S.F. ; Rego, G. ; Frazao, O. ; Santos, J.L.
Author_Institution :
Dept. de Engenharia Electrotecnica, Inst. Superior de Engenharia do Porto, Portugal
Abstract :
This work describes a sensor, in which the sensing head comprises a long period fiber grating (LPG) whose attenuation peak changes as function of its angular rotation. The level of LPG rotation is induced by an angular rotation stage (ARS). The sensing head is integrated in a fiber optic intensity sensor, which is immune to intensity fluctuations other than the ones caused by the LPG.
Keywords :
diffraction gratings; fibre optic sensors; intensity measurement; optical fibres; rotation measurement; angular rotation measurement; angular rotation stage; fiber optic intensity sensor; long period fiber grating; Fiber gratings; Fluctuations; Frequency; Light emitting diodes; Optical attenuators; Optical fiber sensors; Optical fibers; Optical sensors; Rotation measurement; Sensor phenomena and characterization;
Conference_Titel :
Lasers and Electro-Optics Society, 2005. LEOS 2005. The 18th Annual Meeting of the IEEE
Print_ISBN :
0-7803-9217-5
DOI :
10.1109/LEOS.2005.1548253
