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Title: Position feedback control system

Disclosed is a system and method for independently evaluating the spatial positional performance of a machine having a movable member, comprising an articulated coordinate measuring machine comprising: a first revolute joint; a probe arm, having a proximal end rigidly attached to the first joint, and having a distal end with a probe tip attached thereto, wherein the probe tip is pivotally mounted to the movable machine member; a second revolute joint; a first support arm serially connecting the first joint to the second joint; and coordinate processing means, operatively connected to the first and second revolute joints, for calculating the spatial coordinates of the probe tip; means for kinematically constraining the articulated coordinate measuring machine to a working surface; and comparator means, in operative association with the coordinate processing means and with the movable machine, for comparing the true position of the movable machine member, as measured by the true position of the probe tip, with the desired position of the movable machine member.
Authors:
 [1] ;  [1] ;  [1] ;  [2]
  1. (Albuquerque, NM)
  2. (Tijeras, NM)
Publication Date:
OSTI Identifier:
875050
Report Number(s):
US 6519860
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Research Org:
SANDIA CORP
Country of Publication:
United States
Language:
English
Subject:
position; feedback; control; disclosed; method; independently; evaluating; spatial; positional; performance; machine; movable; comprising; articulated; coordinate; measuring; machine; comprising; revolute; joint; probe; arm; proximal; rigidly; attached; joint; distal; probe; tip; attached; probe; tip; pivotally; mounted; movable; machine; revolute; joint; support; arm; serially; connecting; joint; joint; coordinate; processing; means; operatively; connected; revolute; joints; calculating; spatial; coordinates; probe; tip; means; kinematically; constraining; articulated; coordinate; measuring; machine; surface; comparator; means; operative; association; coordinate; processing; means; movable; machine; comparing; true; position; movable; machine; measured; true; position; probe; tip; position; movable; machine; processing means; processing means; spatial position /33/73/700/