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Analysis encapsulation of fiber Bragg gratings into polydimethylsiloxane for the needs of dynamic weighing
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Paper Abstract

Authors of the article focused on the possible encapsulation method of fiber Bragg gratings (FBGs) for the needs of dynamic weighing. For monitoring the parameters, we used broad-spectrum light source LED (Light-Emitting Diode) with a central wavelength of 1550 nm and optical spectrum analyzer with sampling rate 300 Hz. For encapsulation of used FBGs was chosen a specific material polymer polydimethylsiloxane (PDMS). A characteristic feature of this material is very high mechanical resistance, chemical resistance and temperature stability in the range of values -60 °C to + 200 °C. The combination of characteristic advantages of optical fibers (electromagnetic immunity) with stated properties of PDMS gives us the innovative type of encapsulated sensor which could be used for example for the needs of dynamic weighing in worsened or potentially hazardous conditions. This type of monitoring weighing is fully dielectric. Experimental measurements were carried out in laboratory conditions in the weight range of 35 up to 180 kg.

Paper Details

Date Published: 16 May 2017
PDF: 5 pages
Proc. SPIE 10231, Optical Sensors 2017, 102311A (16 May 2017); doi: 10.1117/12.2260449
Show Author Affiliations
M. Fajkus, VŠB-Technical Univ. of Ostrava (Czech Republic)
J. Nedoma, VŠB-Technical Univ. of Ostrava (Czech Republic)
R. Martinek, VŠB-Technical Univ. of Ostrava (Czech Republic)
M. Novak, VŠB-Technical Univ. of Ostrava (Czech Republic)
J. Jargus, VŠB-Technical Univ. of Ostrava (Czech Republic)
V. Vasinek, VŠB-Technical Univ. of Ostrava (Czech Republic)


Published in SPIE Proceedings Vol. 10231:
Optical Sensors 2017
Francesco Baldini; Jiri Homola; Robert A. Lieberman, Editor(s)

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