Means of measurement of heat flows in thermal vacuum research and testing of products of space engineering

1Poshtarenko, Yu.A, 1Rassamakin, BM, 1Rogachov, VA, 1Khominich, VI, 1Shevchenko, MD
1National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine
Space Sci. & Technol. 2022, 28 ;(1):51-60
https://doi.org/10.15407/knit2022.01.051
Publication Language: Ukrainian
Abstract: 
We present the results of the comparative analysis of the characteristics of the domestic-made heat flux sensor PTP-1B with widely used foreign-made area sensor FOA-020.  The conditions are typical to the ground-based thermovacuum research and testing of space technology products, conducted in the absence of validated converter-sensors of the aggregated heat flux within the density range of up to 2000 W/sq. m and a spectral range of 0.2 - 20 µm.

            Experimental studies were performed in a thermal vacuum chamber of the experimental stand TEC-2.5 at the temperature of its internal surfaces of 20 0C. Recommendations regarding the possible use of the PTP-1B sensor as a working instrument of measurements in monitoring and diagnostic systems during the processes of ground testing of space technology objects are given

Keywords: external infrared radiation, ground-based experimental testing of space technology products, heat flow sensor, heat flux density, own temperature of the sensor, thermal vacuum tests
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