DOI 10.17586/0021-3454-2018-61-7-624-632
UDC 621.357.6
DEVELOPMENT OF SPACE PLASMA FLOW SENSOR WITH FOUR-SECTION COLLECTOR
State Scientific and Production Association "Optic, optoelectronic and laser technique", Laboratory of Micro- and Nanosensorics; Professor; Head of the Laboratory
N. L. Borodkova
Space Research Institute of the Russian Academy of Sciences, Department of Plasma Physics, Solar Wind Laboratory; ; Senior Scientist
I. V. Gasenkova
State Scientific and Production Association "Optic, optoelectronic and laser technique", Laboratory of Microand Nano-sensorics; ; Associate Professor; Leading Researcher
I. M. Andrukhovich
State Scientific and Production Association "Optic, optoelectronic and laser technique", Laboratory of Micro- and Nano-sensorics; Senior Scientist
G. N. Zastenker
Space Research Institute of the Russian Academy of Sciences, Department of Plasma Physics, Solar Wind Laboratory; Professor, Leading Researcher
V. I. Kostenko
Space Research Institute of the Russian Academy of Sciences; Assistant Director
O. V. Sapunova
Space Research Institute of the Russian Academy of Sciences, Department of Plasma Physics, Solar Wind Laboratory; Junior Scientist
B. T. Karimov
Special Design Bureau for Space Instruments Engineering of the Space Research Institute of the Russian Academy of Sciences; Head of Sector 112
E. V. Ryzhova
А. A. Maksimov Space Systems Research Institute − Branch of Khrunichev State Research and Production Space Center JSC; Deputy Programs Director
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Abstract. Features of development, creation and testing of experimental sample of space plasma flow sensor using precision selective elements from nanostructured materials and a four-section collector are considered. The design features of the experimental sample of the plasma flow sensor based on the Faraday cylinder are discussed. Results of complex tests of physical functioning of the experimental sample of the cosmic plasma flow sensor and its selection elements are presented, calculated characteristics of the sensor are compared with results of the experimental studies. The comparison demonstrates a good agreement between blocking characteristics of the four-collector sample of the DP-10-34-4K sensor at normal and oblique incidence of the ion flow upon the sensor input window with corresponding calculated data, and thus confirms the possibility to reliably measure the transport flow velocity and its temperature in the isotropic approximation. Angular characteristics of the four sensor manifolds are symmetrical enough to coincide with the calculated ones, which allows using one sensor to determine the magnitude and direction of the ion flux, thereby reducing the mass of the device into which the sensor will be embedded.
Keywords: space experiment, solar wind, plasma flux sensor, Faraday cup, precision selective elements, photoelectric, angular, and energy cutoff characteristics
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