The constant need of improving performance of transducers has pushed scientists to searching novel solutions in transduction mechanisms. The development of theories about Stochastic Resonance and the interplay between nonlinearity and noise represents one of the proposed strategies to improve performance of actual transducers in certain operating conditions. Among nonlinear systems, bistable mechanisms have been investigated in this work. Several results of their application in the field of energy harvesting from mechanical vibrations and in the sensing of AC currents are presented with a special focus on the benefits due to their adoption in specific applications where traditional approaches based on linear transduction mechanisms exhibit issues in efficiency. A special attention is also paid to the technological solutions to implement prototypes of integrated bistable devices and several rapid prototyping strategies are investigated and proposed.
La costante necessità di migliorare le performance dei trasduttori ha spinto la comunità scientifica a ricercare nuove soluzioni nell implementazione dei meccanismi di trasduzione. Lo sviluppo delle teorie sulla Risonanza Stocastica e sull interazione fra nonlinearità e rumore rappresenta una delle strategie proposte per migliorare le performance dei trasduttori in determinate condizioni operative. Fra i vari sistemi non lineari, i meccanismi bistabili sono oggetto di questo lavoro nel quale sono presentati diversi risultati dell applicazione dei meccanismi bistabili nel campo del recupero di energia da vibrazioni meccaniche e nei sensori per correnti alternate; in particolare ci si focalizzerà sui benefici dell adozione dei meccanismi bistabili in applicazioni specifiche in cui gli approcci tradizionali, basati su meccanismi di trasduzione lineari, mostrano problemi di efficienza. Particolare attenzione è stata data alle soluzioni tecnologiche per implementare dei prototipi di dispositivi bistabili integrati e diverse strategie di prototipazione rapida sono state studiate e proposte.
Nonlinear Methodologies in Transduction Mechanisms for Energy Harvesting and Sensors / L'Episcopo, Gaetano. - (2013 Nov 23).
Nonlinear Methodologies in Transduction Mechanisms for Energy Harvesting and Sensors
L'EPISCOPO, GAETANO
2013-11-23
Abstract
The constant need of improving performance of transducers has pushed scientists to searching novel solutions in transduction mechanisms. The development of theories about Stochastic Resonance and the interplay between nonlinearity and noise represents one of the proposed strategies to improve performance of actual transducers in certain operating conditions. Among nonlinear systems, bistable mechanisms have been investigated in this work. Several results of their application in the field of energy harvesting from mechanical vibrations and in the sensing of AC currents are presented with a special focus on the benefits due to their adoption in specific applications where traditional approaches based on linear transduction mechanisms exhibit issues in efficiency. A special attention is also paid to the technological solutions to implement prototypes of integrated bistable devices and several rapid prototyping strategies are investigated and proposed.File | Dimensione | Formato | |
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