Method for determining correction values for correcting positional measurement errors in a machine having at least one translational axis of movement

US7734438B2 · kind B2 · utility

Assignee

• Carl Zeiss Industrielle Messtechnik GmbH · DE

Inventors

• Ulrich Staaden · Aalen, DE
• Guenter Grupp · Donzdorf, DE
• Eugen Aubele

Key dates

• Filing date: Dec 14, 2007
• Grant date: Jun 8, 2010
• Expiry date: Apr 19, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D18/008
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a coordinate measuring machine or any other kind of machine having at least one translational movement axis, correction values are determined by moving the mobile head of the machine along a defined path of movement. First and second position data are recorded by means of first and second position measuring devices. The first position data originate from position measuring devices of the machine. The second position data result from a reference measurement. The correction values are determined as a function of the first and second position data. A defined number of correction values is determined for each section of the path of movement, with the defined number varying in the sections as a function of the error profile defined by the correction values.