The Mobile Spatial Coordinate Measuring System
The Mobile Spatial coordinate Measuring System (MScMS) has been recently designed to make dimensional measurements of large-sized objects. This system, based on modular architecture, consists of three basic parts: a network of sensing devices, distributed around the working area, a portable probe to measure the coordinate points of a reference object, and a data processing unit to store measurement data and process them by means of ad hoc application software. Within the MScMS framework, two systems based on different technologies have been developed at the Industrial Metrology and Quality Engineering Laboratory of Politecnico di Torino—DISPEA. The first (MScMS-I) is based on ultrasound technology whereas the second (MSCMS-II) is based on infrared photogrammetry. In this chapter, we discuss the system architecture and working principles. Furthermore, hardware/software implementation details and metrological performance of two prototypes of these systems are presented. Next, the MScMS is compared with well-tested and widespread instruments, such as classical Coordinate Measuring Machines, and with the iGPS™, described in Chap. 2.