Digital versus analog drives. (CIM Perspectives) (column) From: Modern Machine Shop | Date: August 1, 1990| Author: Herrin, Golden E. | COPYRIGHT 1990 Gardner Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

Digital Versus Analog Drives

In the early 1960's, as the basic concepts of NC were evolving, a major controversy arose in the NC community over whether NC controls should be analog or digital in nature. The supporters of analog controls proclaimed their controls were more stable since they were less susceptible to electrical noise and provided smoother control of the slides while the supporters of digital controls held that their controls were faster, less expensive and mo...