Investigation of distortions of the angular characteristics of an ion sensor for spacecraft attitude control

Details Investigation of distortions of the angular characteristics of an ion sensor for spacecraft attitude control Investigation of distortions of the angular characteristics of an ion sensor for spacecraft attitude control

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985kosis..23..547s&link_type=abstract

Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 23, July-Aug. 1985, p. 547-559. In Russian.

Computer Science

Sound

Attitude Indicators, Ion Traps (Instrumentation), Ionospheric Sounding, Satellite Attitude Control, Spacecraft Charging, Spacecraft Instruments, Angular Distribution, Electrodes, Ion Beams, Ion Probes, Radiation Effects, Rarefied Plasmas, Signal Distortion

Scientific paper

Experimental results are presented concerning the characteristics of an ion attitude-control sensor in the flow of a rarefied plasma whose charged-particle density and velocity simulate those at heights of 200-300 km in the upper atmosphere. Experiments were performed on a laboratory plasma with UV radiation and fluxes of 150-200 eV electrons. It is shown that nonlinear distortions of the angular characteristics arise due to the ion-optical effects as the ion beam passes through the electrodes of the ion tube of the sensor. A method for eliminating these distortions is proposed which consists in the mutual turning of the grids of the ion tube. Also considered are causes of the appearance of collector-current components not connected with the ion-flux modulation and leading to a disruption of the normal operation of the sensor.

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