Precision drive system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 8, 1984
Grant Date -
N/A
app pub date -
Jan 26, 1981
filing date -
Jan 26, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A precision drive system including a base plate; track means and an air bearing means movable relative to one another, one of the means being fixed to the base plate and the other being movable for carrying an object to be moved relative to the base plate; means for moving one of the track and air bearing means; means for driving the moving means; and a control circuit including a power circuit for operating the means for driving; a velocity sensor for detecting the velocity of the movable one of the track and air bearing means, and a velocity feedback circuit for introducing velocity error signals into the power circuit to correct velocity; a position sensor to detect the position of the movable one of the track and air bearing means and a position feedback circuit for introducing position error signals into the power circuit to correct position.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully