Method for determining an axle geometry and sensor for its execution

US7230694B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Frank Forster · Oberkirch, DE
• Lars Jahn · Nuremberg, DE
• Claudio Laloni · Taufkirchen, DE

Key dates

• Filing date: Dec 1, 2003
• Grant date: Jun 12, 2007
• Expiry date: Dec 1, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B2210/286
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Method for determining an axle geometry by recording and evaluating a topographical image of a face (6) of a wheel (1) fitted to an axle (2), and a sensor (10) for execution of the method. The method includes projecting light with a coding onto an area on the face (6) of the wheel (1) from a projecting direction; recording the light reflected from the area on the face (6) of the wheel (1) with an image converter (8), from a direction other than the light projecting direction; determining three-dimensional surface coordinates for the topographical image of the face (6) of the wheel (1) from the recorded light; and evaluating the topographical image in relation to a reference system.