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
Agency Tracking Number:
013789
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Alameda Applied Sciences Corporation
2235 Polvorosa Avenue, Suite 230, San Leandro, CA, 94577
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Jochen Schein
Senior Scientist
(510) 483-4156
schein@aasc.net
Business Contact:
Mahadevan Krishnan
President
(510) 483-4156
krishnan@aasc.net
Research Institution:
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.

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