Title :
Non-contact repulsive-force excitation for highly endurable wide frequency-range energy-harvesting
Author :
Yang, Yongliang ; Tang, Qiaochu ; Li, Xinxin
Author_Institution :
State Key Lab. of Transducer Technol., Chinese Acad. of Sci., Shanghai, China
Abstract :
This paper presents a miniaturized energy-harvester for high-efficiently generating electric-power in a wide frequency-range. A magnetic inertial mass is used to couple energy from ambient vibration and intermittently excites the frequency increased generators (FIG) by repulsive magnetic force. Then the FIGs convert this energy into a high frequency electric energy. The non-contact repulsive-force excited energy-harvester is advantageous in large power-output and reliable working-life. The fabricated device is able to work in wide operating range. At 1g input acceleration, 4.45mW peak-power is generated.
Keywords :
energy harvesting; magnetic forces; FIG; device fabrication; frequency increased generators; high frequency electric energy; highly endurable wide frequency range energy harvesting; magnetic inertial mass; noncontact repulsive force excited energy harvester; power 4.45 mW; repulsive magnetic force; Acceleration; Coils; Magnetic resonance; Magnetomechanical effects; Power systems; Springs; Vibrations; Energy-harvesting; non-contact actuation; repulsive-force excitation; wide frequency-range;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-0157-3
DOI :
10.1109/TRANSDUCERS.2011.5969850
