Examination procedure for the spatial change of an object with respect to its initial condition

US4591784A · kind A · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Jorg Kolitsch · Munich, DE
• August Miehle · Munich, DE

Key dates

• Filing date: Dec 22, 1982
• Grant date: May 27, 1986
• Expiry date: Dec 22, 2002

Classification

• Technology area (CPC G): Physics
• CPC primary: G01M13/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Technical functional components variable relatively to a starting position are examined by comparing an image of the component, produced by relative motion with respect to sensor means, with a corresponding earlier, stored image, and by triggering a warning signal in accordance with the congruence and/or the differences of the two images.