Method of controlling a coordinate measuring apparatus

US5491638A · kind A · utility

Assignee

• Carl Zeiss Stiftung · DE

Inventors

• Bernd Georgi · Hannover, DE
• Bernd Czepan · Heidenheim, DE
• Heinz Peter · Rheinfelden, CH

Key dates

• Filing date: Oct 26, 1994
• Grant date: Feb 13, 1996
• Expiry date: Oct 26, 2014

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/50113
• WIPO field: Control
• WIPO sector: Instruments

Abstract

The invention is directed to a method for automatically generating travel paths to the next geometric elements to be measured when there is a collision of the probe 25 or the probe head 10, for example, with the workpiece 22. The method utilizes safety-reference surfaces (S1 to S5) placed in the form of an enclosing parallelepiped about the workpiece 22. The shortest collision-free connecting paths (P1-P2-P3) from one geometric element to the next are computed on these safety-reference surfaces.