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

fYear

2009

Firstpage

660

Lastpage

663

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International

Conference_Location

Belem

ISSN

1679-4389

Print_ISBN

978-1-4244-5356-6

Electronic_ISBN

1679-4389

Type

conf

DOI

10.1109/IMOC.2009.5427499

Filename

5427499