Longitudinal motion error compensation apparatus method and appa

Details Longitudinal motion error compensation apparatus method and appa Longitudinal motion error compensation apparatus method and appa

1989-12-28

1992-03-10

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318574, 36447406, 36447429, G05B 1918

Patent

active

050952587

ABSTRACT:
A table for use with CNC machines has section one table feature being mounted for movement on the base and the other table section being mounted on the one table section. The table means are movable along mutually perpendicular axes, and are controlled in the axes. Motion error is compensated by providing feedback signals that sense and feed back position signals in one controlled axis as the table sections are moved in the other perpendicular axis. Compensation for deviations in motion in the mutually perpendicular axis is provided so that position in each direction of motion is controlled by two feedback signals for error compensation.

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patent: 4602459 (1986-07-01), Drits et al.
patent: 4791575 (1988-12-01), Watts et al.
patent: 4963803 (1990-10-01), Kokura

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