Digital micropropulsion

被引:181
作者
Lewis, DH
Janson, SW
Cohen, RB
Antonsson, EK
机构
[1] CALTECH, Engn Design Res Lab, Pasadena, CA 91125 USA
[2] TRW Space & Technol Grp, Space & Technol Div, Redondo Beach, CA 90278 USA
[3] Aerosp Corp, Mech & Prop Dept, Mech & Mat Technol Ctr, Los Angeles, CA 90009 USA
关键词
micromechanics; micropropulsion; microthrusters; microrockets;
D O I
10.1016/S0924-4247(99)00260-5
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Arrays of "Digital Propulsion" microthrusters have been fabricated and tested. A three-layer sandwich is fabricated containing microresistors, thrust chambers, and rupture diaphragms. A propellant is loaded into each individually sealed chamber. When the resistor is energized, the propellant ignites, raising the pressure in the chamber and rupturing the diaphragm. An impulse is imparted as the high-pressure fluid is expelled from the chamber. On the order of 10(6) thrusters can be fabricated on a single wafer. Initial tests, using lead styphnate as the propellant, have produced 10(-4) N s of impulse and about 100 W of power. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:143 / 154
页数:12
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