Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Patent
1993-02-25
1994-07-12
Ro, Bentsu
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
318632, G05D 318
Patent
active
053292154
ABSTRACT:
A leadscrew driving arrangement which is corrected to eliminate the effect of pitch errors. The leadscrew is mapped to create a table of differences between the leadscrew angular position and the corresponding angular position of a perfect leadscrew which has been advanced the same axial distance. The differences are used to create a correction table which is stored in a PROM. During operation of the leadscrew, the correction table is used to adjust the leadscrew driving signal.
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"Datwyler", Max Daetwyler Corporation, 13420 West Reese Blvd., Huntersville, N.C. 28078, undated brochure.
"Twin-Pilot", Maschinenfabrik Kaspar Walter GmbH & Co. KG, Plinganserstrasse 22, 8000 Munchen 70, Germany, undated brochure.
American Machinist, Feb. 1993 Magazine Article, Laser Technology, "Getting Better Accuracy With Non-Precision Ball Screws", pp. 50,51.
Fraser John W.
Woods Curtis
Ohio Electronic Engravers, Inc.
Ro Bentsu
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