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Technically mature, low pressure, non-toxic electrospray system for high delta-V CubeSat propulsion
BET-1mN Electrospray Thruster
The Busek Electrospray Thruster system is the result of over 10 years of pioneering research and development, enabling a new class of CubeSat and NanoSat missions. The 8.5 cm x 8.5 cm x 6 cm module consumes under 15W power to deliver a thrust up to 1.0mN, at ISPs ranging from 400 s to over 1300 s. The in-situ optimization of performance output provides significant mission flexibility and versatility. The Electrospray Thruster System features a precision micro-valve, leveraged from ST7 design heritage, and rugged flight electronics. • 50mL propellant reservoir, 100mL reservoir, or
custom volumes are available • Integrated DCIU enables communication via
UART • Propellant-less field emission cathode
neutralizes the positively-charged electrospray plume, minimizing risk of spacecraft interception.
• Tank is at low pressure
• Safe, non-toxic, non-volatile propellant
• Complete System
Precision Miniature Valve
Busek Co. Inc. 11 Tech Circle, Natick, MA 01760 | 508.655.5565 | [email protected]
Copyright 2016, Busek Co. Inc. All Rights Reserved. 70008500H
Busek Co. Inc. 11 Tech Circle, Natick, MA 01760 | 508.655.5565 | [email protected]
System Power 15W
Input Voltage 9-12.6 VDC
Interface UART
System Volume 1 U (including electronics)
System Mass 1.15 kg
Propellant ionic liquid
Heritage LISA Pathfinder Disturbance Reduction System (ST7-DRS) -Cathode (flight heritage) -Thruster (design heritage) -Valve (design heritage)
Thrust 0.7mN nominal
Specific Impulse 800 seconds
Total Impulse 605 N-s (50mL propellant)
BET-1mN SystemTechnical Specifications
Busek Propellant-less Field Emission Cathodes
Delta-V 151 m/s (for 4kg CubeSat)