The Software Architecture and development approach for the ASTRI Mini-Array gamma-ray air-Cherenkov experiment at the Observatorio del Teide

The ASTRI Mini-Array is an international collaboration led by the Italian National Institute for Astrophysics (INAF) and devoted to the imaging of atmospheric Cherenkov light for very-high gamma-ray astronomy. The project is deploying an array of 9 telescopes sensitive above 1 TeV. In this contribution, we present the architecture of the software that covers the entire life cycle of the observatory, from scheduling to remote operations and data dissemination. The high-speed networking connection available between the observatory site, at the Canary Islands, and the Data Center in Rome allows for ready data availability for stereo triggering and data processing

Non-contact inspection techniques

Abstract not available

Analisi strategiche e valutazioni finanziarie,

Il testo esamina le diverse strategie aziendali finalizzate alla creazione del valore e approfondisce le piu' diffuse metodologie per calcolare tale valore

3D digitising systems in manufacturing

Abstract not available

Vehicle foot-step modelling and analysis using Strand6

Abstract not available

High sensitivity capacitive MEMS microphone with spring supported diaphragm

Capacitive microphones (condenser microphones) work on a principle of variable capacitance and voltage by the movement of its electrically charged diaphragm and back plate in response to sound pressure. There has been considerable research carried out to increase the sensing performance of microphones while reducing their size to cater for various modern applications such as mobile communication and hearing aid devices. This paper reviews the development and current performance of several condenser MEMS microphone designs, and introduces a microphone with spring supported diaphragm to further improve condenser microphone performance. The numerical analysis using Coventor FEM software shows that this new microphone design has a higher mechanical sensitivity compared to the existing edge clamped flat diaphragm condenser MEMS microphone. The spring supported diaphragm is shown to have a flat frequency response up to 7 kHz and more stable under the variations of the diaphragm residual stress. The microphone is designed to be easily fabricated using the existing silicon fabrication technology and the stability against the residual stress increases its reproducibility

Design and error analysis of a surface reflector for a laser tracking measurement system

The aim of the research project described in this paper was to extend the operating range of a commercially available laser tracking measurement system by developing a surface reflector with improved measurement accuracy, calibration ability and longer reach than the commercially available device. Two prototype surface reflectors were designed and manufactured. The new design extended the reach of the stylus and provided a mechanism enabling faster calibration with greater adjustment sensitivity. A calibration procedure was developed which was reasonably simple and effective, taking less than 1 h to complete. With further development it is considered that both the calibration time and the misalignment could be reduced. The calibrated surface reflectors were tested to determine the effect of misalignment on the systematic error and to compare the relative systematic error of the prototypes with that of a commercially available surface reflector

Three-dimensional measurement using a single image

This study describes a new measurement technique using a single 2-D image of four coplanar points, which are arranged in a square of known size, to measure geometric features on an object, some of which may be hidden from the view of the camera. A new method is also proposed that uses simple equations and an iteration technique to find 3-D coordinates of points on the object relative to a reference point on the object

Expert system for multidiameter drill selection: an embedded knowledge base approach

This paper describes the development of an expert system for selection of multidiameter drills. These drills are used for stepped hole drilling operations. The structure of an expert system for multidiameter drills is outlined. The aim of this development was to establish a framework for an expert system which uses existing tools to combine a rule-based knowledge base, a database and online help including diagnostics working together within the Windows environment. A new intelligent system structure, operating in the Windows environment, has provided more flexibility and user friendliness than other similar systems