Inkjet 3D Printed MEMS Electromagnetic Multi-Frequency Energy Harvester

Bartosz Kawa, Chengkuo Lee and Rafał Walczak
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Bartosz Kawa: Department of Microsystems, Wroclaw University of Science and Technology, 50370 Wroclaw, Poland
Chengkuo Lee: Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117608, Singapore
Rafał Walczak: Department of Microsystems, Wroclaw University of Science and Technology, 50370 Wroclaw, Poland

Energies, 2022, vol. 15, issue 12, 1-11

Abstract: Multi-frequency operation is an interesting and desired feature of electromagnetic energy harvesters. This work presents results of investigations on an inkjet 3D-printed miniature multi-frequency electromagnetic energy harvester. Vibrating microstructures utilizing springs with constant thickness (300 μm) and widths from 220 to 500 μm were designed, fabricated, and characterized as parts of the miniature energy harvester. Resonant frequencies of the microstructures were measured, and electrical parameters of the harvester were determined. The harvesters operated in the 85–185 Hz frequency range with 32 µW maximal output power. Thanks to flexibility in designing and fabrication by 3D printing, it was possible to develop an energy harvester with at least two operating frequencies within a single harvester structure in many possible two-frequency configurations.

Keywords: 3D printing; MEMS; energy harvester; multi-frequency (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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