Optical measuring probe and method for optically measuring inner diameters

US9841273B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Peter Riegger · Stuttgart, DE
• Gerald Franz · Backnang, DE
• Pawel Drabarek · Tiefenbronn, DE

Key dates

• Filing date: Jul 16, 2013
• Grant date: Dec 12, 2017
• Expiry date: Jul 16, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B11/2441
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An optical measuring probe for measuring inner and/or outer diameters of objects, uses a first optical element for focusing or collimating an optical beam onto a surface of an object. A second optical element for splitting the optical beam into a first measuring beam and a second measuring beam is provided in the optical measuring probe in such a way that the second measuring beam is guided out of the measuring probe in a direction opposite the direction of the first measuring beam and that the first measuring beam forms a first scan point and the second measuring beam forms a second scan point. Also described is a corresponding method for measuring diameters using the optical measuring probe. The optical measuring probe and the associated method make it possible to optically measure inner and outer diameters of measuring probes objects in a simple manner.