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Pospori, Andreas
Cyprus University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023Temperature and RH response of polymer CYTOP FBG treated by gamma radiationcitations
- 2017Thermal and chemical treatment of polymer optical fiber Bragg grating sensors for enhanced mechanical sensitivitycitations
- 2017Polymer optical fiber Bragg grating inscription with a single UV laser pulsecitations
- 2016Microstructured polymer optical fibre sensors for opto-acoustic endoscopycitations
- 2015Fiber-optic liquid level monitoring system using microstructured polymer fiber Bragg grating array sensorscitations
- 2015High performance liquid-level sensor based on mPOFBG for aircraft applications
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document
Fiber-optic liquid level monitoring system using microstructured polymer fiber Bragg grating array sensors
Abstract
<p>A highly sensitive liquid level monitoring system based on microstructured polymer optical fiber Bragg grating (mPOFBG) array sensors is reported for the first time. The configuration is based on five mPOFBGs inscribed in the same fiber in the 850 nm spectral region, showing the potential to interrogate liquid level by measuring the strain induced in each mPOFBG embedded in a silicone rubber (SR) diaphragm, which deforms due to hydrostatic pressure variations. The sensor exhibits a highly linear response over the sensing range, a good repeatability, and a high resolution. The sensitivity of the sensor is found to be 98 pm/cm of water, enhanced by more than a factor of 9 when compared to an equivalent sensor based on a silica fiber around 1550 nm. The temperature sensitivity is studied and a multi-sensor arrangement proposed, which has the potential to provide level readings independent of temperature and the liquid density.</p>