Design and simulation of piezoelectric micro power harvester for capturing acoustic vibrations

Mohd H S Alrashdan, Burhanuddin Yeop Majlis, Azrul Azlan Hamzah, Noraini Marsi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Piezoelectric Micro-Power Harvester (PMPH), harvests mechanical vibration sources available in the environment and converts it to usable electric power via piezoelectric effects. The low power requirements and small device dimensions enable PMPH to supply enough power necessary to a variety of applications such as wireless sensor nodes, wrist watches and cell phone signals, thus proving to be an excellent alternative source for traditional lithium iodide battery especially in body sensor nodes. In this paper we design PMPH that is able to harvest environmental vibration sounds and convert it to usable electrical power for artificial cochlea. Spring mass damper system with single degree of freedom is used to model PMPH. COMSOL Multiphysics 4.2 is used to simulate PMPH. a linear relationship between voltage and external load for piezoelectric materials during Static analysis is observed, Eigenfrequency is used to find the resonance frequencies for six modes of operation and its deflection shape, PMPH harvest the maximum acoustic vibration at first mode of operation at 589 Hz. Simulation results using Transient analysis show that PMPH total displacement about 6 μm and output voltage at center of piezoelectric material about 4 10-15Vp-p at steady state and can harvest acoustic vibration at 598Hz and convert it to electric power about 23nW, which is sufficient for cochlear implant application.

Original languageEnglish
Title of host publicationProceedings - RSM 2013: 2013 IEEE Regional Symposium on Micro and Nano Electronics
Pages383-386
Number of pages4
DOIs
Publication statusPublished - 2013
Event2013 IEEE Regional Symposium on Micro and Nano Electronics, RSM 2013 - Langkawi
Duration: 25 Sep 201327 Sep 2013

Other

Other2013 IEEE Regional Symposium on Micro and Nano Electronics, RSM 2013
CityLangkawi
Period25/9/1327/9/13

Fingerprint

Harvesters
Vibrations (mechanical)
Acoustics
Piezoelectric materials
Sensor nodes
Cochlear implants
Piezoelectricity
Watches
Static analysis
Electric potential
Transient analysis
Lithium
Acoustic waves

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Alrashdan, M. H. S., Yeop Majlis, B., Hamzah, A. A., & Marsi, N. (2013). Design and simulation of piezoelectric micro power harvester for capturing acoustic vibrations. In Proceedings - RSM 2013: 2013 IEEE Regional Symposium on Micro and Nano Electronics (pp. 383-386). [6706556] https://doi.org/10.1109/RSM.2013.6706556

Design and simulation of piezoelectric micro power harvester for capturing acoustic vibrations. / Alrashdan, Mohd H S; Yeop Majlis, Burhanuddin; Hamzah, Azrul Azlan; Marsi, Noraini.

Proceedings - RSM 2013: 2013 IEEE Regional Symposium on Micro and Nano Electronics. 2013. p. 383-386 6706556.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Alrashdan, MHS, Yeop Majlis, B, Hamzah, AA & Marsi, N 2013, Design and simulation of piezoelectric micro power harvester for capturing acoustic vibrations. in Proceedings - RSM 2013: 2013 IEEE Regional Symposium on Micro and Nano Electronics., 6706556, pp. 383-386, 2013 IEEE Regional Symposium on Micro and Nano Electronics, RSM 2013, Langkawi, 25/9/13. https://doi.org/10.1109/RSM.2013.6706556
Alrashdan MHS, Yeop Majlis B, Hamzah AA, Marsi N. Design and simulation of piezoelectric micro power harvester for capturing acoustic vibrations. In Proceedings - RSM 2013: 2013 IEEE Regional Symposium on Micro and Nano Electronics. 2013. p. 383-386. 6706556 https://doi.org/10.1109/RSM.2013.6706556
Alrashdan, Mohd H S ; Yeop Majlis, Burhanuddin ; Hamzah, Azrul Azlan ; Marsi, Noraini. / Design and simulation of piezoelectric micro power harvester for capturing acoustic vibrations. Proceedings - RSM 2013: 2013 IEEE Regional Symposium on Micro and Nano Electronics. 2013. pp. 383-386
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