López Aldaba, AitorLópez Torres, DiegoElosúa Aguado, CésarArregui San Martín, Francisco JavierAuguste, Jean-LouisJamier, RaphaelRoy, PhilippeLópez-Amo Sáinz, Manuel2019-09-162019-09-162018A. Lopez-Aldaba et al., 'Real Time Measuring System of Multiple Chemical Parameters Using Microstructured Optical Fibers Based Sensors,' in IEEE Sensors Journal, vol. 18, no. 13, pp. 5343-5351, 1 July1, 2018. DOI: 10.1109/JSEN.2018.28371591558-174810.1109/JSEN.2018.2837159https://academica-e.unavarra.es/handle/2454/34831In this paper, a multiplexing system for simultaneous interrogation of optical fiber sensors which measure different parameters is presented and validated. The whole system has been tested with 6 different sensing heads with different purposes: one temperature sensing head, two relative humidity sensors and three VOCs leak sensors; all of them based on microstructured optical fibers. The interrogation system uses the FFT technique to isolate each sensor's interference, enabling their simultaneous interrogation. The system interrogates all the sensors at frequencies up to 1 KHz, showing a good performance of each measurement without crosstalk between sensors. The developed system is independent of the sensors' purpose or of the multiplexing topology.8 p.application/pdfeng© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.Microstructured optical fiberPhotonic crystal fiberMultiplexingGas sensinginfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessAcceso abierto / Sarbide irekia