Abstract
Vibration energy exists widely in nature, and the use of intelligent materials to harvest vibration energy to power microelectronic systems is a trend in the field of new energy. In this paper, the inverse effect of magnetic shape memory alloy (MSMA) that is a new intelligent material, is used to design a new kind of vibration energy harvester, which is based on integrated cantilever beam. The structure of cantilever beam and magnetic field loop are optimized, and the ideal structure model of vibration energy harvester is established. The magnetic field is analyzed by using ANSYS finite element software. On the basis of developing the prototype of the harvester, the experimental platform is built and the harvester is tested. The results show that the output voltage of the MSMA vibration energy harvester based on cantilever beam can reach more than 300 mV, which has a wide frequency band of vibration energy harvesting, and possesses a good prospect for development and application.
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