Skip to main content

Research Repository

Advanced Search

A microscopy approach for in situ inspection of the ?CMM stylus for contamination

Feng, Xiaobing; Pascal, Jonathan; Lawes, Simon

A microscopy approach for in situ inspection of the ?CMM stylus for contamination Thumbnail


Authors

Xiaobing Feng

Jonathan Pascal



Abstract

During the µCMM measurement process, contamination gradually builds up on the surface of the stylus tip and affects dimensional accuracy of the measurement. Regular inspection of the stylus for contamination is essential in determining the appropriate cleaning interval and preventing the dimensional error from becoming significant. However, in situ inspection of a µCMM stylus is challenging due to the size, spherical shape, material and surface properties of a typical stylus. To address the challenges, this study evaluates several non-contact measurement technologies for in situ stylus inspection and based on those findings proposes a cost-effective microscopy approach. The operational principle is then demonstrated by an automated prototype, coordinated directly by the CMM software MCOSMOS, with an effective threshold of detection as low as 400 nm and large field of view and depth-of-field. The level of stylus contamination on the stylus has been found to increase steadily with the number of measurement contacts made. Once excessive contamination is detected on the stylus, measurement should be stopped and stylus cleaning procedure should be performed to avoid affecting measurement accuracy.

Journal Article Type Article
Acceptance Date Jun 29, 2017
Online Publication Date Aug 21, 2017
Deposit Date Jul 11, 2017
Publicly Available Date Aug 22, 2018
Journal Measurement Science and Technology
Print ISSN 0957-0233
Electronic ISSN 1361-6501
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 28
Issue 9
DOI https://doi.org/10.1088/1361-6501/aa7c93
Keywords ?CMM,stylus inspection, contamination, microscopy, focus stacking
Public URL https://nottingham-repository.worktribe.com/output/878574
Publisher URL http://iopscience.iop.org/article/10.1088/1361-6501/aa7c93/meta;jsessionid=6864A8A0BBA4C4EA8EC0D09B402DEFF1.c4.iopscience.cld.iop.org
Related Public URLs http://iopscience.iop.org/journal/0957-0233
Additional Information This is an author-created, un-copyedited version of an article accepted for publication/published in Measurement Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6501/aa7c93.

Files





You might also like



Downloadable Citations