Fiscal Year:
2006
Title:
Field-Effect Modulated Electro-Osmotic Pumps for High Precision Colloid Thrusters
Agency:
NASA
Contract:
NNC06CB12C
Award Amount:
$69,914.00
Abstract:
The ability to precisely control the position of satellites is a critical enabling technology for space missions involving interferometric arrays. One proposed mission, LISA (Laser Interferometer Space Antenna), would use an array of 3 satellites whose relative position is monitored and controlled to an accuracy of 10 nm. Precise station-keeping such as this demands precise, high stability thrusters supplied with propellant flows on the order of microliters/min and producing micro-newtons of thrust. These requirements are difficult or impossible to meet with traditional thrusters and feed systems such as cold-gas thrusters or monopropellants. The proposed program will evaluate the use of electro-osmosis to supply and control the flow of ionic liquid propellants to micronewton colloid thrusters. In addition, the use of a gate electrode to control the surface charge and therefore the magnitude and direction of flow will be examined as will the use of AC fields to limit electrolysis effects. Phase I will provide basic information on the electro-osmotic behavior of ionic liquids using simple test devices and electrospray emitters. Phase II will involve detailed design work to fabricate a practical propellant feed system using electro-osmotic pumps.
Principal Investigator:
Charles J. Gasdaska
Principal Investigator
5086555565
chas@busek.com
Small Business Information at Submission:
Busek Co., Inc.
11 Tech Circle Natick, MA 01760
EIN/Tax ID:
042881247
DUNS:
N/A
Number of Employees:
Woman-Owned:
No
Minority-Owned:
No
HUBZone-Owned:
No