Title :
Improvement of Fiber Bragg Grating Interrogator sensitivity for triaxial accelerometer
Author :
Cazo, Rogerio Moreira ; de Siqueira Ferreira, J.L. ; de Barros Caldas, T. ; De Arruda, Josiel Urbaninho ; Alles, N. ; Louzada, Rafael Cardoso
Author_Institution :
Inst. de Estudos Avancados (IEAv), Sao Jose dos Campos, Brazil
Abstract :
This article describes modifications in the usual interrogator techniques for improve sensitivity of Fiber Bragg Grating Interrogator Systems for embedded applications in a triaxial fiber optical accelerometer in development for aerospace applications. Those modifications were made in optical architecture and in electronic compensations of detected signal, being optimized for strain measurements. Observed results shows compensation of thermal variations in strain measures and power source variations, as well as cancellation of spurious cavity feedbacks that cause measurement variations due to light interference.
Keywords :
Bragg gratings; accelerometers; fibre optic sensors; aerospace applications; detected signal; electronic compensations; fiber Bragg grating interrogator sensitivity; optical architecture; power source variations; spurious cavity feedbacks; strain measurements; strain measures; thermal variations; triaxial accelerometer; Accelerometers; Computer architecture; Network topology; Optical buffering; Optical fiber networks; Optical interconnections; Optical packet switching; Telecommunication traffic; Throughput; Traffic control; Bragg gratings; accelerometer; fiber optics; interrogator; sensors; signal processing;
Conference_Titel :
Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International
Conference_Location :
Belem
Print_ISBN :
978-1-4244-5356-6
Electronic_ISBN :
1679-4389
DOI :
10.1109/IMOC.2009.5427499
