Vázquez García, CarmenPérez Prieto, SandraLópez Cardona, Juan DayronTapetado, AlbertoBlanco, EnriqueMoreno López, JorgeSánchez Montero, DavidContreras Lallana, Pedro2024-01-272024-01-272018-02-06Vázquez, C.; Pérez-Prieto, S.; López-Cardona, J.D.; Tapetado, A.; Blanco, E.; Moreno-López, J.; Montero, D.S.; Lallana, P.C. Fiber-Optic Pyrometer with Optically Powered Switch for Temperature Measurements. Sensors 2018, 18, 483. https://doi.org/10.3390/s180204831424-8220https://hdl.handle.net/10115/29063We report the experimental results on a new infrared fiber-optic pyrometer for very localized and high-speed temperature measurements ranging from 170 to 530 °C using low-noise photodetectors and high-gain transimpedance amplifiers with a single gain mode in the whole temperature range. We also report a shutter based on an optical fiber switch which is optically powered to provide a reference signal in an optical fiber pyrometer measuring from 200 to 550 °C. The tests show the potential of remotely powering via optical means a 300 mW power-hungry optical switch at a distance of 100 m, avoiding any electromagnetic interference close to the measuring point.engAttribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/contactless temperature sensorfiber-opticpyrometeroptical switchpower over fiberoptical chopperlock-in amplifierinfo:eu-repo/semantics/article10.3390/s18020483info:eu-repo/semantics/openAccess