Multifunctional Extrinsic Fiber Optic Sensor to Measure Various Parameters of Liquids at the Operating Wavelength of 660nm Employing a U-Shaped Glass Rod as a Sensing Element
S. Venkateswara Rao1, S. Srinivasulu2

1Dr. S. Venkateswara Rao, Professor and Chairman, Board of Studies Physics, Jawaharlal Nehru Technological University, Hyderabad (Telangana), India.
2S. Srinivasulu Department of Physics, College of Engineering, J N T University, Hyderabad (Telangana), India.
Manuscript received on 25 July 2019 | Revised Manuscript received on 03 August 2019 | Manuscript Published on 10 August 2019 | PP: 1418-1431 | Volume-8 Issue-2S3 July 2019 | Retrieval Number: B12630782S319/2019©BEIESP | DOI: 10.35940/ijrte.B1263.0782S319
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Abstract: Fiber Optic sensor technology has become more popular since early 1970’s during which the mechanism of losses from optical fibers was exploited to construct a new class of fiber optic sensors and systems. A novel fiber optic sensor has been developed by connecting a U-shaped glass element of specific dimensions between a light source of 660nm wavelength and an optical power detector by using a couple of PCS optical fibers of 200/230μm diameters of core and cladding respectively. The sensor can be employed to measure several parameters such as Refractive Index, Density, Viscosity, Ultrasonic Velocity, Molar Volume, Molar Refraction, Dielectric Constant, Acoustic Impendence, Adiabatic Compressibility, Viscous Relaxation Time, Intermolecular Free Length, Absorption Coefficient, Gibb’s Free Energy, Free Volume, Internal Pressure and their excess parameters of Toluene and tert-Butanol mixtures at 30℃ temperature and at the operating wavelength of 660nm.
Keywords: Absorption Coefficient, Acoustic Impendence, Adiabatic Compressibility, Density, Excess Parameters, Free Volume, Gibb’s Free Energy, Intermolecular Free Length, Internal Pressure, Refractive Index, Ultrasonic Velocity, U-Shaped Glass Element, Viscosity, Viscous Relaxation Time.
Scope of the Article: Bio-Science and Bio-Technology