Microfabricated harmonic side-drive motors

Details Microfabricated harmonic side-drive motors Microfabricated harmonic side-drive motors

1990-06-22

1992-03-03

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, 310309, H02N 100

Patent

active

050935941

ABSTRACT:
A microfabricated, harmonic side-drive "wobble" type micromotor exhibiting increased torque output without the need for air levitation or for insulation on the rotor. Stator pieces are arranged about a circular space. In the center of that space is a bearing. An annular rotor in the space, about the bearing, has an inner surface always in rolling contact with the bearing. The outer surface of the rotor is separated from the stator by an air gap.

REFERENCES:
patent: 4754185 (1988-06-01), Gabriel et al.
Ganon, "Magic Micromachine", Popular Science, Mar. '89, pp. 88-93.
Laithwaite, "Linear-Motion Electrical Machines", Proc. IEEE, v. 58, No. 4, Apr. '70, pp. 531-542.
Mehregany et al., "Study of Three Microfabricated Variable-Capacitance Motors", Proc. 4th Int. Conf. on Solid State Sensors and Actuators, Montreux, Switzerland, Jun. 25, '89.

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