Title :
Micro-wheels for attitude control and energy storage in small satellites
Author :
Peczalski, A. ; Jacobs, Jaco
Author_Institution :
Sensor Lab., Honeywell Inc., Plymouth, MN
Abstract :
A new type of energy storage and attitude control device is proposed and its projected performance is described. The device, nicknamed the “micro-wheel,” can be built from silicon wafers using standard MEMS fabrication techniques. The micro-wheels enable small satellite missions by integrating energy storage and attitude control into structures so small that they could be incorporated into a satellite´s walls. Typical dimensions are anywhere from a couple of millimeters in diameter to a couple of hundred millimeters in diameter. For a 100-mm diameter wheel the projected momentum density is 9 Nm sec/kg and the energy is 14 W hr/kg
Keywords :
aerospace instrumentation; angular momentum; attitude control; electromagnetic actuators; flywheels; magnetic levitation; microactuators; micromachining; 100 mm; MEMS fabrication; attitude control; control algorithm; energy storage; magnetic actuators; magnetic levitation; micro-wheels; momentum density; performance prediction; silicon wafers; small satellites; Batteries; Energy storage; Fabrication; Gravity; Laboratories; Lithium; Magnetic fields; Satellites; Space technology; Wheels;
Conference_Titel :
Aerospace Conference, 2001, IEEE Proceedings.
Conference_Location :
Big Sky, MT
Print_ISBN :
0-7803-6599-2
DOI :
10.1109/AERO.2001.931209
