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dc.contributor.authorHaris Fazilah, Hassan
dc.contributor.authorSyed Idris, Syed Hassan, Prof. Dr.
dc.contributor.authorRosemizi, Abd. Rahim
dc.date.accessioned2014-03-24T06:47:58Z
dc.date.available2014-03-24T06:47:58Z
dc.date.issued2013
dc.identifier.citationInternational Journal of Engineering and Technology, vol. 5(6), 2013, pages 4702-4707en_US
dc.identifier.issn2319-8613
dc.identifier.urihttp://www.enggjournals.com/ijet/vol5issue6.html
dc.identifier.urihttp://dspace.unimap.edu.my:80/dspace/handle/123456789/33043
dc.descriptionLink to publisher's homepage at http://www.enggjournals.com/en_US
dc.description.abstractThe applications of electronic devices with low power consumption, such as wireless sensor network and electronic communication devices, are rapidly increasing. Thus, utilizing environmental energy as an alternative to electrochemical battery, which has a finite lifespan, can be a great advantage to these electronic devices. Harvesting environmental energy, such as solar, thermal, wind flow, water current, and raindrops, has attracted increasing research interest in the field of energy harvesting. In this paper, harvesting sound energy in the form of pressure waves is investigated as an alternative to existing energy harvesting methods. In the experimental work, a piezoelectric generator lead zirconate titanate (PZT-5A) cantilever type is used to extract sound energy from the loudspeaker from various distances and then to convert this energy into electrical energy. A direct piezoelectric effect operating in 31 coupling mode is used. The maximum voltage generated by the piezoelectric generator occurs when its resonant frequency is operating near the frequency of sound. An analytical method with an appropriate equation is used to determine the resonant frequency and is then validated using the experimental result. The result shows that the maximum output voltage of 26.7 mVrms was obtained with the sound intensity of 78.6 dB at resonant frequency of 62 Hz at 1 cm distance in the first mode. In the second mode, the maximum output voltage of 91 mVrms was obtained with the sound intensity of 102.6 dB at resonant frequency of 374 Hz at 1 cm distance which is larger than that of the first mode. However, for both modes, voltage decreases as distance increases.en_US
dc.language.isoenen_US
dc.publisherEngg Journals Publicationsen_US
dc.subjectCantileveren_US
dc.subjectPiezoelectric generatoren_US
dc.subjectResonant frequencyen_US
dc.subjectSound energyen_US
dc.titleAcoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversionen_US
dc.typeArticleen_US
dc.contributor.urlharisfazilah@msi.unikl.edu.myen_US
dc.contributor.urlsyedidris@unimap.edu.myen_US
dc.contributor.urlrosemizi@unimap.edu.myen_US


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