Study on the Strain Effect of a Piezoelectric Energy Harvesting Module
- Authors
- Woo, Min Sik; Hong, Seong Kwang; Jung, Hyun Jun; Yang, Chan Ho; Song, Daniel; Sung, Tae Hyun
- Issue Date
- Jan-2013
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- Piezoelectric energy harvesting; strain effect; PZT
- Citation
- FERROELECTRICS, v.449, no.1, pp.33 - 41
- Indexed
- SCIE
SCOPUS
- Journal Title
- FERROELECTRICS
- Volume
- 449
- Number
- 1
- Start Page
- 33
- End Page
- 41
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163699
- DOI
- 10.1080/00150193.2013.822765
- ISSN
- 0015-0193
- Abstract
- In order to investigate the relationships among strain, frequency, and output power, a novel piezoelectric energy harvesting module with controllable strain was designed. Conventional vibration module can control over strain through variation in tip mass, but it is also affected by vibration frequency. In the contrast, the designed controllable strain module allows more accurate strain control at various frequencies through adjustment of the displacement of the free end of the cantilever from 5mm to 45mm. Experimental results proved that both types of modules exhibit an increase in open circuit output voltage with strain. But output voltage was decreased when the piezoelectric ceramic broke at severe strain. In addition, it was confirmed that the proposed module design can keep the strain constant, which allows investigation into the relationship between frequency and output power. At constant strain, the matching impedance was found to be low at high frequency. Thus, as effect of strain to the piezoelectric energy harvesting module, the optimum conditions for harvesting maximum power are found to be high frequency and the largest strain do not degrade the piezoelectric plate.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 전기공학전공 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.