Three-axis geostationary satellites employ slip rings to transmit control signals and electric power between the satellite body and the sun-tracking solar paddles. Slip rings used in space must maintain their lubricative and conductive characteristics reliably under ultrahigh vacuum conditions. The article introduces a new Ag-MoS2-NbSe2 slip-ring composite developed for space use by Mitsubishi Electric in cooperation with the National Aerospace Laboratory of Japan's Science and Technology Agency. The composite features outstanding friction characteristics, excellent wear characteristics and temperature stability, low electrical resistance, and low noise generation. It is suitable for transmitting both lower current densities, and very high-density currents up to 500 A/cm2.
The development of slip-ring materials for space use
Entwicklung von Schleifringmaterialien fuer die Raumfahrt
Titel japanisch
Mitsubishi Denki Technical Review ; 61 , 8(675) ; 27-30
1987
4 Seiten, 9 Bilder, 4 Tabellen, 8 Quellen
Report
Japanisch
Development and qualification of the International Space Station Centrifuge slip ring assembly
British Library Conference Proceedings | 2005
|Development and performance of a new power slip-ring system for space application
Tema Archiv | 1985
|Innovative Contactless Slip Ring
British Library Conference Proceedings | 2007
|