CubeSat micro-pulsed plasma thruster

CubeSat micro-pulsed plasma thruster

Released

12/06/2018 4:50 pm

Copyright

ESA/Mars Space

Description

This micro-pulsed plasma thruster has been designed for propulsion of miniature CubeSats; its first firing is seen here. The thruster works by pulsing a lightning-like electric arc between two electrodes. This vaporizes the thruster propellant into charged plasma, which is then accelerated in the electromagnetic field set up between the electrodes.

Developed for ESA by Mars Space Ltd and Clyde Space of the UK with Southampton University, this 2 Watt, 42 Newton-second impulse plasma thruster has been qualified for space, with more than a million firing pulses demonstrated during testing.

It has been designed for a range of uses, including drag compensation in low orbits, orbit maintenance, formation flying and small orbit transfers. The thruster could also serve as a CubeSat deorbiting device, gradually reducing orbital altitude until atmospheric re-entry is achieved.

About the size of a DVD reader, the thruster weighs just 280 grams including its propellant load and drive electronics.

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