Method and arrangement for tactile-optical determination of the geometry of a measurement object

US9599456B2 · kind B2 · utility

Assignee

• WERTH MESSTECHNIK GMBH · DE

Inventors

• Ralf Christoph · Schönberg (Holstein), DE
• Matthias Andraes · Florstadt, DE
• Ingomar Schmidt · Erfurt, DE
• Markus Hechler · Wetzlar, DE
• Benjamin Hopp · Gießen, DE

Key dates

• Filing date: Nov 26, 2010
• Grant date: Mar 21, 2017
• Expiry date: Nov 26, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B5/016
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a method and arrangement for determining structures and/or geometry of a workpiece in a coordinate measuring machine by means of a tactile-optical measuring method, wherein the position of a shaped probe element is determined in at least one direction by means of a first sensor using an optically lateral measuring method, and the position of the shaped probe element is determined in at least one second direction using at least one distance sensor. In order to allow the error-free detection of the shaped probe element using the sensors, the invention proposes that at least one flexible connector element is used in a mounting for fastening the shaped probe element, permeated by the beam path of the first sensor in the beam direction, wherein the connecting element is transparent and/or is disposed severely out of focus with respect to the first sensor.