A fiber optic temperature sensor based on the combination of epoxy and glass particles with different thermo-optic coefficients
| Autor: | Dietmar Drummer, Wolfgang Wildner |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Optical fiber
Materials science business.industry 02 engineering and technology Epoxy 01 natural sciences Temperature measurement Graded-index fiber Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics 020210 optoelectronics & photonics Optics law Fiber optic sensor visual_art 0103 physical sciences 0202 electrical engineering electronic engineering information engineering visual_art.visual_art_medium Dispersion-shifted fiber Particle Composite material Plastic optical fiber business |
| Zdroj: | Photonic Sensors. 6(4):295-302 |
| ISSN: | 1674-9251 |
| DOI: | 10.1007/s13320-016-0328-6 |
| Popis: | This paper describes the development and function of an optical fiber temperature sensor made out of a compound of epoxy and optical glass particles. Because of the different thermo-optic coefficients of these materials, this compound exhibits a strong wavelength and temperature dependent optical transmission, and it therefore can be employed for fiber optic temperature measurements. The temperature at the sensor, which is integrated into a polymer optical fiber (POF), is evaluated by the ratio of the transmitted intensity of two different light-emitting diodes (LED) with a wavelength of 460 nm and 650 nm. The material characterization and influences of different sensor lengths and two particle sizes on the measurement result are discussed. The temperature dependency of the transmission increases with smaller particles and with increasing sensor length. With glass particles with a diameter of 43 μm and a sensor length of 9.8 mm, the intensity ratio of the two LEDs decreases by 60% within a temperature change from 10°C to 40°C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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