30 May 2016 Iterative matrix inversion technique for simultaneous strain and temperature sensing in an extended temperature range
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Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 99160O (2016) https://doi.org/10.1117/12.2236852
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland
Abstract
The linear matrix approach is the common method for multi-parameter FBG-based strain and temperature sensing. As it does not include non-linear temperature responses and hence lacks accuracy, the application of an iterative matrix inversion technique can be used to remedy this deficiency. Employing this method in a set-up using a multi-parameter sensor system that consists of two FBGs in fibers, which differ in cladding diameters, significantly reduced temperature uncertainties of ± 1°C could be achieved within a temperature range between -20°C and 150°C.
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Barbara Hopf, Barbara Hopf, Alexander W. Koch, Alexander W. Koch, Johannes Roths, Johannes Roths, } "Iterative matrix inversion technique for simultaneous strain and temperature sensing in an extended temperature range", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99160O (30 May 2016); doi: 10.1117/12.2236852; https://doi.org/10.1117/12.2236852
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