Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
Fecha
2017Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.1117/12.2267524
Resumen
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. [--]
Materias
Microstructured optical fiber,
Fiber sensor,
Temperature sensing,
Strain sensing,
Simultaneous sensing
Editor
SPIE
Publicado en
25th International Conference on Optical Fiber Sensors, edited by Youngjoo Chung… [et al.], Proc. of SPIE Vol. 10323, 103233I
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila
Versión del editor
Entidades Financiadoras
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.