Author(s)

T.A. Clarke, X. Wang, N.R. Cross, A.B. Forbes & P.M. Fossati

Abstract

Performance verification for large volume metrology systems T.A. Clarke*, X. Wang*, N.R. CiW, A.B. Forbes* & P.M. FossatP Optical Metrology Centre, City University, UK * National Physical Laboratory, UK * Brown & Sharpe DBA, Turin, Italy Abstract A method for the verification of the performance of conventional co-ordinate measuring machines is defined in the ISO 10360-2 standard. This specifies how measurements of a set of traceable lengths (for example, step gauges, length bars, etc.) can be used to verify whether the length measuring capabilities of a given instrument are within the manufacturer's specification. Large volume measurement systems such as the laser tracker, photogrammetry, portable arm CMM's and theodolite systems are not specifically addressed by the ISO 10360- 2 standard. However, these systems are increasingly being used in high value processes and the requirement for verification procedures for such systems is clear. Extending the principles of ISO 10360-2, this pap

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