Title: Which diameter matters?
Authors: Thalmann, Rudolf, Federal Institute of Metrology (METAS), Bern-Wabern, Switzerland
Kündig, Daniel, Federal Institute of Metrology (METAS), Bern-Wabern, Switzerland
Contributors: HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
Pages:10
Language:en
DOI:10.7795/810.20150325D
Resource Type: Text / Article
Publisher: Physikalisch-Technische Bundesanstalt (PTB)
Dates: Available: 2015-03-25
File: Download File (application/pdf) 674.18 kB (690360 Bytes)
MD5 Checksum: e5867643ac6bb0db6a2a9649704bfaa2
SHA256 Checksum: 5d1c657896173de551ccb6e9a8ba5dbf03b10e4a515153f389a67bc484b65af9
Keywords: diameter standard ; pin gauge ; roundness
Abstract: Pin gauges are widely used in various applications, i.e. for gauging, as setting standards for mechanical and optical diameter measuring instruments, or for screw gauge calibration. Form deviations and surface roughness have a different influence dependent on the subsequent application of these gauges. In this paper we discuss how pin gauges are preferably calibrated and which measurands are to be determined for which application. In particular, the elastic deformation due to the measurement force and the determination of the form deviation are discussed. For the latter, an instrument based on three-point centerless roundness measurement is presented. The measurement methods and the best measurement capabilities are validated by internal comparisons between different instruments.
Other: This article is based on a presentation at the conference "MacroScale 2014 - Recent developments in traceable dimensional measurements", Vienna (Austria), 28th-30th October 2014.
Citation: THALMANN, Rudolf and Daniel KÜNDIG. Which diameter matters? Physikalisch-Technische Bundesanstalt (PTB), 2015. doi: 10.7795/810.20150325D
Remark: This article is based on a presentation at the conference "MacroScale 2014 - Recent developments in traceable dimensional measurements", Vienna (Austria), 28th-30th October 2014.