Fast demodulation technique for a quasi-distributed temperature sensor

C. Crunelle; M. Wuilpart; C. Caucheteur; P. Mégret

doi:10.1117/12.726157

18 June 2007 Fast demodulation technique for a quasi-distributed temperature sensor

C. Crunelle, M. Wuilpart, C. Caucheteur, P. Mégret

Proceedings Volume 6616, Optical Measurement Systems for Industrial Inspection V; 661616 (2007) https://doi.org/10.1117/12.726157
Event: Optical Metrology, 2007, Munich, Germany

Abstract

A new fast demodulation technique for a quasi-distributed temperature sensor based on the interrogation of identical concatenated fibre Bragg gratings is presented. The interrogation scheme is based on the optical time domain reflectometry technique, for which a commercial device has been extended to a wavelength-tuneable system, within an automated experimental set-up. Detection and localization of an important amount of sensing points along a unique optical fibre is demonstrated. The demodulation method is based on the optimization of the least square differences between reference and measured data. Repeatability measurements and associated accuracy of the sensor are presented.

Citation Download Citation

C. Crunelle, M. Wuilpart, C. Caucheteur, and P. Mégret "Fast demodulation technique for a quasi-distributed temperature sensor", Proc. SPIE 6616, Optical Measurement Systems for Industrial Inspection V, 661616 (18 June 2007); https://doi.org/10.1117/12.726157

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available