Actually, the ITER (International Thermonuclear Experimental Reactor) project mission is to endow the scientific and engineering feasibility for fusion energy. Built LHC (Large Hadron Collider) at CERN, ITER has become the largest project in applied superconductivity and, besides its technical complexity, ITER represent a management challenge as it bases on a unique worldwide collaboration of seven partners (China, EU, India, Japan, US, Russia and South Korea), who provide 90% of the components as in-kind contributions. Among ITER components, magnet system for plasma confinement is one of the most complex and advanced superconducting magnet systems ever designed, and its production is involving six of the ITER partners (all but India). In the following, quality assurance/quality control programs that have been implemented by ITER Organization (IO) to ensure conductor production uniformity and full traceability of intermediate assemblies across numerous suppliers will be illustrated.

The paper deals with the problem of estimating measured values in indirect measurements based on complex processing algorithm. To this aim, deterministic sampling of the random variables (modeling the input quantities) is suggested to efficiently estimate expectation and standard uncertainty of algorithm outputs. In particular, the authors propose an enhanced version of the traditional unscented transform to propagate a defined set of statistical moments of the input quantities through the algorithms (even in the presence of non-analytical formulation). This way, it is possible to assure estimates of output expectation and standard uncertainty as good as those achieved by means of the very large ensemble of random variates typically exploited in brute force Monte Carlo method.

Many road applications as real-time traffic monitoring, vehicle counting and speed measurements, environmental and pollution monitoring along the roads, impose accurate time reference of detected events. In the most of the applications, measurement stations are based on distributed architectures in which one node acts as master and the others, defined slaves, have to be synchronized with the master. Generally, the master is equipped with a clock reference based on the Global Positioning System, while the slaves are synchronized with the master by the way of suitable synchronization protocols. Focusing the attention on such protocols, in a previousstage the authors analyzedthe effect, on the synchronization performance, of the finite resolution of the timing clock, the presence of clock drift, clock jitter and wander, the presence of real latencies of the radio devices and microcontroller. This paper extends the study by considering further factors of influence as the distance among nodes, the level of the transmission power, the receiver sensitivity and the effect of the environmental factors.

This paper presents an automated digital testing system for high-resolution ADC with lowresolution DAC signal. This system mainly comprises a low-resolution DAC (or signal source), a feedback loop circuit, a bias voltage device and a reference voltage source controlled by a digital potentiometer. By the digital potentiometer constantly fine-tuning the reference voltage and joining bias voltage timely, the output of DAC can completely measure all the codes of high-resolution ADC under test. This system solves the problem that low-resolution DAC signal tests high-resolution ADC inaccurately, which not only greatly reduce the test cost, but also can be applied to a variety of ADC hardware testing environments. The simulation results show that, 10-bit DAC signal in this system can measure each code of 14-bit ADC twice at least. The proposed testing system shows a new feasible solution to high-resolution ADC test.

At National Institute of Metrological Research (INRIM) a Selectable Value High DC Voltage Standard operating in the range from 10 V to 100 was realized to cover the absence of high level DC Voltage Standards at voltages upper than 10 V to employ both as Laboratory Standards or traveling Standards for Interlaboratory Comparisons. It A novel ground-mobile electronic technique was utilized. In the first tests the developed Standard showed better noise and stability of the same order of top level DC Voltage and Multifunction Calibrators, widely employed in Electrical Calibration Laboratories. The project is also upgradable up to 1000 V.