Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
Date
2017Author
Version
Acceso abierto / Sarbide irekia
Type
Contribución a congreso / Biltzarrerako ekarpena
Version
Versión publicada / Argitaratu den bertsioa
Project Identifier
ES/1PE/TEC2013-47264 ES/1PE/TEC2016-76021
Impact
|
10.1117/12.2267524
Abstract
In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavel ...
[++]
In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavelength evolution in the spectrum, which can be a handicap when there are multiple interference frequency components with different sensitivities. The sensor is operated within a range of temperature of 30°C-75°C, and 380µɛ of maximum strain were applied; being the sensitivities achieved of 127.5pm/°C and -19.1pm/µɛ respectively. Because the system uses an optical interrogator as unique active element, the system presents a cost-effective feature. [--]
Subject
Publisher
SPIE
Published in
25th International Conference on Optical Fiber Sensors, edited by Youngjoo Chung… [et al.], Proc. of SPIE Vol. 10323, 103233I
Departament
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko eta Elektronikoa Saila
Publisher version
Sponsorship
Financial support from the Spanish Comisión Interministerial de Ciencia y Tecnología within projects TEC2016-76021-
C2-1-R, TEC2013-47264-C2-2-R and SUDOE ECOAL-MGT and FEDER funds from the European Union is
acknowledged.