Title :
Simultaneous temperature and acceleration optical fiber sensor system for large structures monitoring
Author :
López-Higuera, J.M. ; Cobo, A. ; Echevarria, J. ; Madrug, F.J. ; Arce, J.L.
Author_Institution :
Photonics Eng. Group, Cantabria Univ., Santander, Spain
Abstract :
The feasibility of a simple and robust sensor system for the simultaneous measurement of vibration and temperature has been shown. It is based on extrinsic coupling between a single-mode and two multi-mode optical fibers for the acceleration sensing, and of a fibre Bragg grating (FBG) embedded in the former fiber for the measurement of the temperature. The experimental results, and the use of simple differential techniques in the opto-electronic unit, confers to this sensor system good technical behavior and make it cost-effective
Keywords :
Bragg gratings; acceleration measurement; fibre optic sensors; intelligent sensors; intelligent structures; monitoring; optical fibre couplers; temperature measurement; vibration measurement; acceleration sensing; cost-effective; differential techniques; extrinsic coupling; fibre Bragg grating; intelligent sensors; intelligent structures; large structures monitoring; multi-mode optical fibers; optical fiber sensor system; opto-electronic unit; robust sensor system; simultaneous measurement; single-mode optical fibers; temperature measurement; vibration measurement; Acceleration; Bragg gratings; Fiber gratings; Optical fiber sensors; Optical fibers; Robustness; Sensor systems; Temperature measurement; Temperature sensors; Vibration measurement;
Conference_Titel :
Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE
Conference_Location :
Rio Grande
Print_ISBN :
0-7803-5947-X
DOI :
10.1109/LEOS.2000.893914
