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Proceedings Paper

Low cost fiber optic sensing of sugar solution
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Paper Abstract

The demand for highly sensitive and reliable sensors to assess the refractive index of liquid get many applications in chemical and biomedical areas. Indeed, the physical parameters such as concentration, pressure and density, etc., can be found using the refractive index of liquid. In contrast to the conventional refractometer for measurement, optical fiber sensor has several advantages like remote sensing, small in size, low cost, immune to EMI etc., In this paper we have discussed determination of refractive index of sugar solution using optical fiber. An intensity modulated low cost plastic fiber optic refractive index sensor has been designed for the study. The sensor is based on principle of change in angle of reflected light caused by refractive index change of the medium surrounding the fiber. The experimental results obtained for the sugar solution of different refractive indices prove that the fiber optic sensor is cable of measuring the refractive indices as well as the concentrations.

Paper Details

Date Published: 5 March 2015
PDF: 5 pages
Proc. SPIE 9317, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XV, 93170L (5 March 2015); doi: 10.1117/12.2176390
Show Author Affiliations
M. Esakki Muthuraju, Vidya Jyothi Institute of Technology (India)
Anurag Reddy Patlolla, Vidya Jyothi Institute of Technology (India)
Badrinath Vadakkapattu Canthadai, Vidya Jyothi Institute of Technology (India)
Vengalrao Pachava, National Institute of Technology, Warangal (India)

Published in SPIE Proceedings Vol. 9317:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XV
Israel Gannot, Editor(s)

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