The reliable of inspection and measurements in a non-destructive way is quite important in industrial area, mainly when it is related to quality control of weld joints. Ultrasound and Radiography can be used in order to check weld integrity. However they just can often be identified by visual inspection. 3D x-ray microtomography permits a real time quantitative investigation all over the micro architectural of the sample with a very good spatial resolution (micro order). The porosity parameter can be very important because it is related to the properties of alloy interconnects, such as degradation of mechanical performance. The goal of this work is to investigate critical welding flaws such as longitudinal, sagittal and transversal cracks, lack of penetration and porosity by 3D x-ray microtomography.

Eddy current testing (ECT) is a non destructive technique that can be used in the measurement of conductive material thickness. In this work ECT and a machine learning algorithm (support vector machine - SVM) are used to classify the thicknesses of three different types of conductive plates. Eddy currents are induced by imposing a voltage step in an excitation coil, while a giant magnetoresistor (GMR) magnetic sensor measures the transitory magnetic field intensity in the sample vicinity. An experimental validation procedure, including machine training with linear and exponential kernels and classification errors, was made for each metal type with sets of sample thicknesses up to 7.5 mm.

The paper deals with power quality in the industry. A virtual instrument-power meter and power quality analyser is described. The instrument enables complete monitoring of all the powers and power quality parameters, as well as simultaneous measurements of voltages and currents and application for Motor Current Signature Analysis (MCSA) and technical diagnostics. The results of measurements of different industrial plants are shown and their influence on the power quality is evaluated and discussed. The complete and continual measurements of the powers and power quality characteristics give basis for consideration of the technical and economical aspects of planning and contracting of the electrical power needs and characteristics.

Traffic calming devices on urban streets, such as elevated pedestrian crossings, speed bumps and roundabouts, are increasingly used, therefore bus passengers on-board comfort assessment is an actual problem.
In order to measure vibrational on-board comfort for public transport standing passengers related to traffic calming, an acquisition system called ASGCM (Autonomous System for Geo-referenced Comfort Measurements) has been developed, taking as a reference the European regulations on rail transports. Thanks to ASGCM, each measurement of vibration, on-ground velocity and acceleration is linked with geographical information resulting from a GPS, so a map of a comfort index, as well as statistical surveys and correlation between on-board comfort and traffic calming, can be directly obtained using a Geographic Information System (GIS), querying a centralized remote database developed ad-hoc. A large number of experimental tests has been performed in order to define a vibrational comfort index and to collect a large statistics that allows a significant comparison between different infrastructures and their characterization. The proposed technique can also be useful for diagnostics purposes, such as vehicles comparison and vehicle and road maintenance state monitoring.

Cutting tool geometry including tool edge radius is not only important for determination of tool lifetime but also have a direct effect on workpiece surface characteristics. This geornetry is created in manufacturing phase and changes occur in machining processes. In this regard, to indicate it precisely in different scales has vital importance. Most of the existing studies have focused on manufacturing parameters such as cutting speed, feed rate, depth of cut, tool geometry, and various coatings, to indicate effects of surface roughness of the machined part in two-dimensional. Limited number of studies searched the effects of tip radius in three dimensional. The purpose of this study is indicating the end milling tool geornetries, their changes after milling processes and the following conditions after usage; as dimensional, form and surface deviations with modern precise measurement techniques and methods in 2D and as 3D. This paper studies the optimizing of process parameters and different coating materials which combined different tool radiuses to obtain the minimum R_a values for the end milling process of Al 7075 alloy.