A magneto-mechano-electric (MME) energy harvester based on rectangular cymbal structure
| Autor: | Zhonghui Yu, Jikun Yang, Zhaoqiang Chu, Mohammad Javad Pourhosseini Asl, Ge Nie, Huilong Qi, Xiaoting Yuan, Shuxiang Dong, Yang Yu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Cantilever
Materials science 02 engineering and technology 01 natural sciences law.invention law 0103 physical sciences Electrical and Electronic Engineering Instrumentation Magneto Power density 010302 applied physics business.industry Metals and Alloys Magnetostriction 021001 nanoscience & nanotechnology Condensed Matter Physics Piezoelectricity Surfaces Coatings and Films Electronic Optical and Magnetic Materials Magnetic field Optoelectronics 0210 nano-technology business Excitation Light-emitting diode |
| Zdroj: | Sensors and Actuators A: Physical. 316:112400 |
| ISSN: | 0924-4247 |
| DOI: | 10.1016/j.sna.2020.112400 |
| Popis: | In this work, we report a magneto-mechano-electric (MME) energy harvester with a rectangular cymbal structure consisting of a piezoelectric ceramic plate and magnetostrictive alloy (Metglass) foils. The magnetic field induced voltage was then predicted by using finite element analysis. Experimental results show that under a magnetic field excitation of 8 Oe at 180 Hz (resonance frequency), the MME energy harvester can generate a peak-peak output power of 5.7 mW and peak-peak current of 2.3 mA, respectively, for a load resistance of 5.6 kΩ, which allow to drive 10 LEDs lighting directly and stably. Correspondingly, its power density is 5.1 mW cm−3 at Hac =7 Oe, which is comparable with previous reports about traditional cantilever structure MME energy harvester using a piezoelectric single crystal. This work confirms that the MME energy harvester is a promising candidate for powering wireless sensors and other micro-energy smart electronics using the stray magnetic field, or even mechanical vibration energy in environment. |
| Databáze: | OpenAIRE |
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