High precision/low hysteresis linear actuator

Details High precision/low hysteresis linear actuator High precision/low hysteresis linear actuator

1993-12-21

1997-04-22

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

74 8917, 74409, F16H 1904, H02K 706

Patent

active

056231768

ABSTRACT:
A high precision linear actuator with low hysteresis has an elongate linearly movable drive shaft for controlling a damper. The drive shaft is connected to a drive pad mounting a rack gear. A motor drive is adapted to receive an input signal in the form of an input voltage and converts the voltage into rotation of a motor drive shaft. A drive means is operatively associated with the motor drive shaft output and is in cooperating contacting relation with the rack gear for linearly translating the drive shaft. A position sensor outputs a signal indicating the linear displacement of the drive shaft.

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