Identification of liquids and determination of aqueous solutions concentration using optical fiber
https://doi.org/10.17586/0021-3454-2023-66-10-869-875
Abstract
An easy-to-use method for identifying liquids and determining the concentration of substances dissolved in water is proposed, the method implementation uses short optical fiber (1–1.5 m) and does not require complex and expensive equipment. According to the proposed method, optical radiation of constant power is directed into the optical fiber, and on the same side of the fiber the power of the radiation reflected from the remote end of the fiber immersed in the liquid is recorded. It is deduced that to implement the proposed method, both single-mode and multimode optical fiber can be used using optical wavelengths of 650, 850, 1310, 1490, 1550 and 1625 nm, while the use of wavelengths 650 and 850 nm is less desirable due to greater measurement error than for other wavelengths. It is shown that the proposed method can be applied, in particular, to determine the concentration of aqueous solutions of sugar and isopropyl alcohol.
About the Authors
А. O. Zenevich
Belarusian State Academy of Communications
Belarus
Belarus
Andrey O. Zenevich - Dr. Sci., Professor; Rector
Minsk
T. M. Mansurov
Azerbaijan Technical University
Azerbaijan
Azerbaijan
Tofig M. Mansurov - Dr. Sci., Professor
Baku
T. G. Kovalenko
Belarusian State Academy of Communications
Belarus
Belarus
Tatiana G. Kovalenko - Post-Graduate Student; Department of Physical and Mathematical Foundations of Computer Science
Minsk
E. V. Novikov
Belarusian State Academy of Communications
Belarus
Belarus
Evgeny V. Novikov - PhD; Associate Professor; Director of the Institute
Minsk
S. V. Zhdanovich
Belarusian State Academy of Communications
Belarus
Belarus
Sergey V. Zhdanovich - PhD; Associate Professor; Laboratory of Perspective Information and Communication Technologies; Head of the Laboratory
Minsk
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Review
For citations:
Zenevich А.O., Mansurov T.M., Kovalenko T.G., Novikov E.V., Zhdanovich S.V. Identification of liquids and determination of aqueous solutions concentration using optical fiber. Journal of Instrument Engineering. 2023;66(10):869-875. (In Russ.) https://doi.org/10.17586/0021-3454-2023-66-10-869-875
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