Title :
Performance characterization of different nonlinear-transduction mechanisms for piezoelectric energy harvesting
Author :
Trigona, C. ; Maiorca, F. ; Giusa, F. ; Noto, A. ; Ando, B. ; Baglio, S.
Author_Institution :
Dept. of Electr., Electron. & Informatic Eng., Univ. of Catania, Catania, Italy
Abstract :
This paper deals with the analysis of different configurations for piezoelectric energy harvesters. The theory is based on the nonlinear approach applied in PZT-based oscillators. The oscillators that will be exploited and characterized are composed of single and multiple magnetically-coupled bi-stable cantilevers excited through ambient vibrations as external energy sources. Three systems have been validated and compared in terms of calibration diagram, power budget, efficiency, spectral content. The proposed transducers are suitable to be used as converters or sustainers in order to supply smart nodes, wireless sensor networks or to perform autonomous measurement systems.
Keywords :
cantilevers; energy harvesting; piezoelectric oscillations; piezoelectric transducers; vibrations; PZT-based oscillators; ambient vibrations; autonomous measurement systems; calibration diagram; external energy sources; magnetically-coupled bistable cantilevers; nonlinear approach; nonlinear-transduction mechanisms; performance characterization; piezoelectric energy harvesters; piezoelectric energy harvesting; power budget; smart nodes; spectral content; wireless sensor networks; Energy harvesting; Magnetic domains; Magnetomechanical effects; Mathematical model; Oscillators; Transducers; Vibrations; characterizazion of energy harvesters; magnetically-coupled devices; nonlinear transducers;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC) Proceedings, 2014 IEEE International
Conference_Location :
Montevideo
DOI :
10.1109/I2MTC.2014.6860923
