| Autor: |
Volkov, V. V., Suslin, M. A., Dumbolov, J. U. |
| Předmět: |
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| Zdroj: |
Measurement Techniques; Jun2020, Vol. 63 Issue 3, p226-234, 9p |
| Abstrakt: |
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 free water content of not more than 0.0015 wt.%. A direct electrometric microwave resonator method for controlling free moisture in aviation fuels has been developed. The method consists in measuring the resonance characteristics of a cylindrical cavity resonator. At that, on a solid dielectric surface inside the resonator, there are moisture drops that are pressed by a thin plate. As a result, dielectric losses increase dramatically. Analytical and experimental analyses of the proposed method are carried out. The monitoring range of 0.5–30 μl of the absolute moisture volume in aviation fuels with a maximum error of no more than 25% is justified. The sensitivity of the proposed method for monitoring microwave losses in free moisture drops transformed into a thin layer by pressing with a thin plate is an order of magnitude higher 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 instruments for monitoring the free moisture of aviation fuels in airfi eld and laboratory conditions. The direction of development of the method is shown. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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