A virtual machine-based uncertainty evaluation for a traceable areal surface texture measuring instrument

作者：Giusca Claudiu L^*; Leach Richard K; Forbes Alistair B

来源：Measurement, 2011, 44(5): 988-993.

DOI：10.1016/j.measurement.2011.02.011

• Areal surface texture
• Traceability
• Surface texture measurement
• Interferometry
• Uncertainty
• GUM
• Monte Carlo simulation

The National Physical Laboratory has recently developed a traceable measuring instrument that uses a stylus probe to measure topography in three dimensions. This paper presents the uncertainty evaluation associated with the new instrument. A sound mathematical model has been developed to describe the instrument geometry and functionality. Based on this model the uncertainty associated with the point co-ordinate measurement has been evaluated using a Monte Carlo technique, similar to the "virtual CMM" method. A short description of the instrument is presented along with the mathematical model and uncertainty calculation results.

• 出版日期2011-6