Modelling the static thermal sensitivity of diaphragm-based fibre optic pressure sensors

Sharifian, Ahmad and Watson, Stuart and Buttsworth, David R. and Barton, James (2007) Modelling the static thermal sensitivity of diaphragm-based fibre optic pressure sensors. In: 8th Australasian Heat and Mass Transfer Conference, 26-29 July 2005, Curtin University of Technology, Perth, Western Australia.


[Abstract]: Diaphragm-based fibre optic pressure sensors can offer high temporal and spatial resolution pressure measurements at modest cost, but they can suffer from the detrimental effects of temperature cross-sensitivity. A simple construction for these sensors involves a zirconia ferrule as the substrate for a polished copper foil diaphragm, and a liquid adhesive as the bonding layer between the two. It is proposed that elimination of the adhesive layer through the use of direct bonding techniques, such as electroplating or ultrasonic welding, could reduce the temperature sensitivity. The thermal sensitivity of two types of sensor – one with and one without an adhesive layer – is studied using finite element modelling. The results show that the new construction technique could reduce the temperature sensitivity by up to 62 %.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Awaiting copyright advice.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 23 Jan 2008 05:12
Last Modified: 02 Jul 2013 22:54
Uncontrolled Keywords: fibre optic pressure transducer, instrumentation
Fields of Research : 09 Engineering > 0913 Mechanical Engineering > 091399 Mechanical Engineering not elsewhere classified
09 Engineering > 0906 Electrical and Electronic Engineering > 090605 Photodetectors, Optical Sensors and Solar Cells

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