1,720,973 research outputs found
Sviluppo e caratterizzazione metrologica di un trasduttore a fibra ottica per la misurazione in linea dello spessore di vernice
No full textSulla Valutazione dell’Incertezza di Misure Estensimetriche Effettuate su Fissatori Esterni
No full textTrasduttori, Strumenti e sistemi per Misure di Angolo in Applicazioni Meccaniche
No full textIn questo lavoro viene presentato un aggiornato stato dell'arte di trasduttori e strumenmti di misura di angoli, con particolare riguardo alle applicazioni sia di ricerca sia industriali nel campo dell'industrria meccanica.Un updated state of the art of angle transducers and measurement systems is presented in this paper with particular reference to applications in mechanical engineering, both of industrial and laboratory type
A Simple Angular Fiber Optic Sensor
No full textA simple fiber optic sensor for angle measurement is described in this paper. It is based on a fiber optic bundle, which is bifurcated (“Y” shape), having a semicylindrical disposition of the fibers in the common bundle. Based on test results that have been carried out on a test apparatus built for this specific purpose, a comparison is described between the metrological characteristics of this transducer when it is used whether as a linear displacement transducer or as an angular one. The paper shows that by means of a very simple optical head, easy to connect to the fiber bundle a simple but powerful angular sensor can be realized, to be used as a null or deflection transducer. Taking into account the experimental behaviour of the whole measuring chain, the metrological characteristics of this sensor have been discussed and in particular sensitivity, resolution, accuracy and effects of modifying and interfering inputs, especially of geometrical type. The measuring chain can be easily modified to measure linear displacements, but in this case the capability of this system, with particular reference to its compactness and handiness are not so adequately exploite
Confronto Sperimentale tra Differenti Metodologie di Rilevazione della Traccia di un Fascio Luminoso Collimato
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Effect of uncertainty of reliability data of mechanical and thermal instrumentation on risk assessment and prediction in process plant applications
No full textProgettazione e Realizzazione di un Banco di taratura per Sistemi per Ecocardiografia Laser Doppler
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