The Mobile Spatial coordinate Measuring System II (MScMS-II): system description and preliminary assessment of the measurement uncertainty

摘要

According to the increasing interest in metrological systems for dimensional measurements of large-size objects in a wide range of industrial sectors, several solutions based on different technologies, working principles, architectures, and functionalities have recently been developed. In order to address the needs of Large-Scale Metrology (LSM) applications, a distributed flexible system based on a network of low cost InfraRed (IR) sensors - the Mobile Spatial coordinate Measuring System II (MScMS-II) - has been developed. This paper presents a preliminary uncertainty assessment referring to the measured point coordinates in the 3D space, focusing on the sources of measurement uncertainty and the related propagation laws. A preliminary metrological characterization of MScMS-II architecture, experimentally evaluated through a system prototype, is also presented and discussed.