Measurement strategy impact on dimensional inspection by portable camera-based measuring systems

Abstract

In dimensional inspection of large objects, portable measuring systems are greatly involved in a wealth of applications, such as automotive, motorsports and aerospace industries. Metris K-series Optical CMM (Coordinate Measuring Machine) system is one of the metrology solutions with relatively high accuracy and flexibility. This paper focuses on measurement strategy via repeatedly measuring a length using Metris K610 camera system. The paper proposes a link between measurement strategy and the system performance that can be achieved. The result of the statistical analysis are also given based on the uncertainty propagation of the CMM.

Accuracy assessment for a multi-parameter optical calliper in on line automotive applications

“…Methods to propagate the uncertainty of length inspection based on the uncertainty propagation of coordinates measurement exist, such as Monte-Carlo Simulation and Taylor Series Method [7]. Anyway, the modelling of the uncertainties causes is often difficult, in particular for on-line indirect measurements, and an experimental validation is required.…”