CUED Publications database

Development of optical fibre humidity sensors for assessing the quality of housing insulation materials

Wang, Y and Sun, T and Fabian, M and Grattan, KTV and Forman, T and Mutschler, R (2017) Development of optical fibre humidity sensors for assessing the quality of housing insulation materials. In: UNSPECIFIED.

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Abstract

A fibre optic-based relative humidity (RH) sensing system has been developed for assessing the qualities of housing insulation materials, based on a Polyimide (PI)-coated Fibre Bragg Grating (FBG) device. This forms the key moisture sensitive element, allowing a carefully-designed and packaged sensor system to be fabricated, evaluated and calibrated, creating the robustness and reusability needed. Following calibration, the system performance evaluated on a range of commercial housing insulation materials shows excellent performance in establishing the key moisture-Transport parameters of the materials routinely used by structural engineers. Cross-sensitivity issues are addressed allowing the RH sensor system to operate over a wide range of RH level experienced normally in this application. A sensitivity of 1.1 pm/%RH, with low hysteresis from a ruggedized sensor, is observed.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div D > Sustainable Development
Depositing User: Cron Job
Date Deposited: 02 Feb 2018 20:19
Last Modified: 10 Apr 2021 01:14
DOI: 10.1109/ICOCN.2016.7875862