Throttleable Vacuum Arc Thruster for Precision Positioning

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$69,999.00
Award Year:
2002
Program:
SBIR
Phase:
Phase I
Contract:
NAS3-02047
Award Id:
56651
Agency Tracking Number:
013789
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2235 Polvorosa Avenue, Suite 230, San Leandro, CA, 94577
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
JochenSchein
Senior Scientist
(510) 483-4156
schein@aasc.net
Business Contact:
MahadevanKrishnan
President
(510) 483-4156
krishnan@aasc.net
Research Institute:
n/a
Abstract
Alameda Applied Sciences Corporation proposes to develop a new type of electric propulsion device dubbed the Throttleable Vacuum Arc Thruster (TVAT). This thruster is itself a variant on an earlier thruster (the Vacuum Arc micro-Thruster (VA?-T)) that has been demonstrated via a recently concluded Phase I SBIR contract from BMDO (NASA/GRC contract NAS300129). The VA?T was verified to be a low mass (100g) high efficiency (13% measured), high Isp (1000-3000s) electric propulsion device. By combining the simple technology of an inductive energy storage circuit PPU with powerful electronics control, we will develop a thruster that can be remotely adjusted to deliver individual impulse bits from 0.25?Ns to 50?Ns with repetition rates varying from 1?1000 Hz while all the time providing an Isp of >1000s. The throttleable VAT proposed here is a pulsed device and hence can provide a wide range of impulse bits and a variety of repetition rates, which could satisfy coarse and ultra-fine control demands integrated in the same simple system. This thruster will be well suited to provide precision control for spacecraft constellations including optical interferometry, while offering low mass (<300g including the PPU), simplicity (no moving parts), high efficiency (?15%) and low cost of manufacturing.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government