Patent · US Active

Method and device for contacting a surface point on a workpiece

US7788820B2 · kind B2 · utility

2Cited by

8References

14Claims

0Family size

Assignee

Carl Zeiss Industrielle Messtechnik GmbH · DE

Inventors

Eugen Aubele
Guenter Grupp · Donzdorf, DE
Ralf Bernhardt · Aalen, DE
Klaus Bendzulla · Künzelsau, DE

Key dates

Filing date	Nov 7, 2008
Grant date	Sep 7, 2010
Priority date	—
Expiry date	Mar 17, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01B21/045
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A probe head having a probe head base and a stylus is provided for contacting a surface point on a workpiece. The stylus is moveable relative to the probe head base and has a defined rest position relative to the probe head base. For the contacting, the probe head is moved relative to the workpiece until the stylus touches the surface point with a defined contacting force. A correction data record representing a hysteresis behavior of the stylus with respect to the rest position is provided, and the contacting force is determined using the correction data record.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.