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Proceedings Paper

Interferometric measuring system for cone inspection on shop-floor level
Author(s): Till Grübler; Pawel Drabarek
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Paper Abstract

Small and precise cones are one of the most important functional surfaces for valve seats of today's modern common rail injection systems for Diesel engines. We have investigated two concepts of interferometric systems for industrial examination of small-size conical geometries: white-light-interferometer with an endoscopic probe and a special formmeasuring- machine with an interferometric stylus. Endoscopic probes are critical for small and deep drillings, and the optical layout becomes very complex and expensive. To increase the universality of small size cone measuring systems, we followed the concept of a special scanning form measuring machine using a single-measuring-point interferometric stylus. We have performed first measurements and repeatability tests on the shop floor. Based on standard capability evaluation (Cgk and Cg) we have achieved the following measuring system capabilities: angle T< 0.07°, roundness T<0.3 μm, Pt Value <0.3 μm.

Paper Details

Date Published: 22 June 2015
PDF: 8 pages
Proc. SPIE 9525, Optical Measurement Systems for Industrial Inspection IX, 95250O (22 June 2015); doi: 10.1117/12.2184456
Show Author Affiliations
Till Grübler, Robert Bosch GmbH (Germany)
Pawel Drabarek, Robert Bosch GmbH (Germany)

Published in SPIE Proceedings Vol. 9525:
Optical Measurement Systems for Industrial Inspection IX
Peter Lehmann; Wolfgang Osten; Armando Albertazzi Gonçalves Jr., Editor(s)

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