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Induction coil is one of the key components of permanent magnet vibration-to-electrical power generator (VEPG). Here, the equivalent turn number of coil (ETNC) is introduced to build the relationship between the induction coil's structure and magnetic field. And the dynamic magnetic flux density is calculated by finite element method (FEM). The optimized induction coil is fabricated according to the...
The vibration energy exists widely and is always wasted. Energy harvesting devices that convert kinetic energy into electrical energy have attracted much interest. A variety of vibration driven generators using electromagnetic principles to convert the kinetic energy into electrical energy, are being studied for powering sensors. However, the power supply is always a bottleneck problem to the development...
Giant magnetostrictive actuators have the magneto-mechanical coupling characteristic when they are operating normally. This paper presents a dynamic magneto-mechanical strong coupled model for giant magnetostrictive actuators. According to the model and the measured magnetic characteristic of giant magnetostrictive material, the relation between the magnet field and the output displacement of an actuator...
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