RESEARCH PAPERS: Production Engineering Papers

Reference-Word Circular Interpolators for CNC Systems

[+] Author and Article Information
O. Masory

Gould Laboratories, Rolling Meadow, Ill. 60008

Y. Koren

Department of Mechanical Engineering, Center for Robotics and Integrated Manufacturing, University of Michigan, Ann Arbor, Mich. 48109

J. Eng. Ind 104(4), 400-405 (Nov 01, 1982) (6 pages) doi:10.1115/1.3185849 History: Received June 15, 1982; Revised June 15, 1982; Online July 30, 2009


Interpolation techniques for CNC manufacturing systems are either of the Reference-Pulse or Reference-Word type. Reference-Pulse interpolators have been discussed in a previous paper [2]. The present paper provides an analysis of a selected number of Reference-Word circular interpolation techniques that are useful in CNC systems. These interpolators function in an on-line iterative mode and generate binary words which are supplied as references to the control loops in Sampled-Data CNC systems. The various methods are evaluated in terms of accuracy, maximum permitted radius, and number of required iterations to complete a circular arc.

Copyright © 1982 by ASME
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