Acquiring holistic and accurate 3D measurements for industrial parts is highly demanded in the fields of quality control, process optimization and product development. The increasing complexity in the design and miniaturization make the task of holistic 3D data acquisition difficult. For the last few years, industrial computed tomography (CT) has emerged as a promising coordinate measuring tech...

Abstract The coordinate measuring machine has high measurement accuracy, but it is only suitable for the precise of geometric size component in normal temperature environment, and some complex structures need to assess stability terminal face relative pose low environment. In order apply high-precision thermal evaluation structures, an extended control method based on proposed. realizes loading...

The fourth industrial revolution driven by digitalization, networking and intelligence has put forward new requirements for Coordinate Measuring Machines (CMMs). Two important development directions of are reviewed analyzed in this paper. first is the study error compensation Machines, which includes dynamic static technology. Dynamic particularly high-speed measurement. And how to ensure measu...

This article discusses different non contact 3D measuring strategies and presents a model for measuring complex geometry parts, manipulated through a robot arm, using a novel vision system consisting of a laser triangulation sensor and a motorized linear stage. First, the geometric model incorporating an automatic simple module for long term stability improvement will be outlined in the article...

The dimensional and geometrical specifications control of a mechanical part is commonly done using coordinate measuring machine. Collecting processing measurement data through probe, it allows the conformity according to specific tolerances. An accurate estimation uncertainty critical; within this framework that our study oriented; we aim estimate parallelism error Guide Expression Measurement ...

Diffuse optical tomography is an emerging technique for non-invasively measuring in vivo tissue optical properties. The next generation of DOT time domain imaging systems will allow researchers to create three-dimensional (3D) images of blood volume and oxygenation with unprecedented spatial resolution. We consider common semi-infinite and slab geometries, in the Born approximation to the diffu...

Kandogan introduced the concept of star coordinate projection in 2000 [1]. To illustrate the idea behind 2DSCP, consider an example data point of dimension 8 given by 0.98]. 0.95 0.06 0.869 0.01 0.43 37 . 0 [ = A The dimensional anchors for 2DSCP are shown in Fig. 1. The dimensional anchors multiplied by the dimension values for data point ‘A’ are shown in Fig. 2. As shown in Fig. 2, each...