Analysis of viscoelasticity of POF gratings in the stress sensing

Luo, Yanhua; Wang, Xin; Yan, Binbin; Wu, Wenxuan; Peng, Gang-Ding; Zhang, Qijin

doi:10.1016/j.optcom.2013.06.056

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…In order to investigate the possible effects of stress relaxation [5], the mPOF sensors used in the previous experiment were left at 0.5% pre-tension for 24 h before the experiment was again repeated. The results are plotted in figure 4.…”

Section: Application Of Pre-tensionmentioning

confidence: 99%

“…However, the technology of POFBGs is much less mature than its silica counterpart and there are a number of challenges still to be addressed. One of these concerns the tensile behaviour of POFBGs, which is complicated due to the visco-elastic nature of the fibre material [5]. The sensors can display a significant amount of hysteresis when strained, dependent on the timescales involved [6] and the magnitude of applied strain [7].…”

Section: Introductionmentioning

confidence: 99%

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Effects of annealing, pre-tension and mounting on the hysteresis of polymer strain sensors

Abang¹,

Webb²

2013

Meas. Sci. Technol.

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When exposed to high levels of strain, polymer optical fibre grating sensors recorded in poly(methyl methacrylate) based fibre often exhibit hysteresis in the response of their Bragg wavelength to strain. We demonstrate that the application of pre-tension and annealing of the polymer fibre can reduce this hysteresis when the fibre is suspended freely between two supports, but much better performance is obtained when the sensor is attached directly to a substrate. In this case, the hysteresis can be lessened by more than a factor of 12.

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Section: Application Of Pre-tensionmentioning

confidence: 99%