| Title | Broadband Piezoelectric Energy Harvester Based on Coupling Resonance Frequency Tuning |
| Author | |
| Corresponding Author | Wang, Min |
| Publication Years | 2023
|
| DOI | |
| Source Title | |
| EISSN | 2072-666X
|
| Volume | 14Issue:1 |
| Abstract | The bandwidth of piezoelectric energy harvesters (PEHs) can be broadened by resonance-based frequency tuning approaches, including mechanical tuning and electrical tuning. In this work, a new coupling tuning mechanism for regulating the near-open-circuit resonance frequency by changing the effective electrode coverage (EEC) is presented. A linear model of a bimorph piezoelectric cantilever with segmented electrodes is used to evaluate the power harvesting behavior near the open-circuit resonance frequency when EEC changes from 0 to 100%. According to the theoretical analysis, it is found that the variation of EEC brings about the change in coupling strength, which is positively associated with the near-open-circuit resonance frequency of PEH. Two cantilever PEHs with segmented electrodes based on PZT and PZT-PT are constructed for validation of the coupling tuning mechanism. The analytical and experimental results illustrate remarkable improvements in both bandwidth and average power through the coupling resonance frequency tuning method. In addition, adopting extraordinary piezoelectric single crystals and optimizing the proof mass and piezoelectric layer dimensions were theoretically shown to be effective methods for further improvement of bandwidth. |
| Keywords | |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | First
; Corresponding
|
| WOS Research Area | Chemistry
; Science & Technology - Other Topics
; Instruments & Instrumentation
; Physics
|
| WOS Subject | Chemistry, Analytical
; Nanoscience & Nanotechnology
; Instruments & Instrumentation
; Physics, Applied
|
| WOS Accession No | WOS:000927162300001
|
| Publisher | |
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/489999 |
| Department | Department of Mechanics and Aerospace Engineering 工学院_深港微电子学院 |
| Affiliation | 1.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China 2.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China |
| First Author Affilication | Department of Mechanics and Aerospace Engineering |
| Corresponding Author Affilication | SUSTech Institute of Microelectronics |
| First Author's First Affilication | Department of Mechanics and Aerospace Engineering |
| Recommended Citation GB/T 7714 |
Hu, Kun,Wang, Min. Broadband Piezoelectric Energy Harvester Based on Coupling Resonance Frequency Tuning[J]. MICROMACHINES,2023,14(1).
|
| APA |
Hu, Kun,&Wang, Min.(2023).Broadband Piezoelectric Energy Harvester Based on Coupling Resonance Frequency Tuning.MICROMACHINES,14(1).
|
| MLA |
Hu, Kun,et al."Broadband Piezoelectric Energy Harvester Based on Coupling Resonance Frequency Tuning".MICROMACHINES 14.1(2023).
|
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