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Microwave resonance method for measuring microliter volumes of free moisture in aviation fuels
https://doi.org/10.32446/0368-1025it.2020-3-49-56
Abstract
One of the conditions for ensuring the safety of air transport operation is the quality of aviation fuel refueled in aircraft. Fuel quality control is a multi-parameter task that includes monitoring the free moisture content. Regulatory documents establish the content of free water no more than 0.0015% by weight. It is developed a direct electrometric microwave resonance method for controlling free moisture in aviation fuels, which consists in changing the shape of the water drops by pressing them on a solid surface inside a cylindrical cavity resonator. This can dramatically increase dielectric losses. Analytical and experimental analysis of the proposed method is carried out. The control range from 0,5 to 30 μl of absolute volume of moisture in aviation fuels with a maximum error of not morethan 25 % is justified The sensitivity of the proposed method for monitoring microwave losses in free moisture drops transformed into a thin layer by pressing is an order of magnitude greater than the sensitivity of the method for monitoring microwave losses in moisture drops on a solid surface in a resonator. The proposed method can be used as a basis for the development of devices for monitoring the free moisture of aviation fuels in the conditions of the airfield and laboratory. The direction of development of the method is shown.
About the Authors
V. V. Volkov
Voronezh state technical University
Russian Federation
Russian Federation
Vitaly V. Volkov
Voronezh
M. A. Suslin
Military Educational and Scientifi c Center of the Air Force “N. E. Zhukovsky and Y. A. Gagarin Air Force Academy”
Russian Federation
Russian Federation
Michael A. Suslin
Voronezh
J. U. Dumbolov
25 State research institute of chemical biology of the Ministry of defense of Russian
Russian Federation
Russian Federation
Jamil U. Dumbolov
Podolsk, Moscow region
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Review
For citations:
Volkov V.V., Suslin M.A., Dumbolov J.U. Microwave resonance method for measuring microliter volumes of free moisture in aviation fuels. Izmeritel`naya Tekhnika. 2020;(3):49-56. (In Russ.) https://doi.org/10.32446/0368-1025it.2020-3-49-56
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