Kok, Swee Leong (2015) Characterization on piezoelectric cantilever for its linear response at low frequency for measuring acceleration level of vibration. Applied Mechanics and Materials, 761 (1). pp. 579-583.
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Applied Mechanincs and Materials_Characterization on Piezoelectric Cantilever for its Linear Response.pdf - Published Version Download (505kB) |
Abstract
The output response of the piezoelectric cantilever has excellent linearity over a very wide dynamic range. This paper demonstrates the potential of piezoelectric cantilever to be a self-powered accelerometer. Three different-sized piezoelectric cantilevers were tested under a vibration source at 50 Hz, 100 Hz, and 150 Hz. It is proven that the piezoelectric cantilevers can be used as an accelerometer since the output voltage generated by the cantilever is linear and proportional to the vibration acceleration level far before reaching its resonance. Three piezoelectric cantilevers with similar length of 28.6 mm, but different width of 3.2 mm, 6.3 mm and 12.7 mm were used in the experiment in order to observe the linearity of the output voltage from different-sized piezoelectric cantilevers with the same resonance frequency. The length of piezoelectric may affect the resonance frequency of the cantilever, while the width of the piezoelectric will not. Hence, cantilevers with different width are chosen as the subject of the experiment. The linearity of the experiment results show the maximum error percentage obtained is between 5 to 15% when excited at a vibration magnitude in the range of 1 to 5-g.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | self-powered, accelerometer, resonance, MEMS |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Electronics and Computer Engineering > Department of Industrial Electronics |
| Depositing User: | Dr. Swee Leong Kok |
| Date Deposited: | 03 Sep 2015 03:20 |
| Last Modified: | 03 Sep 2015 03:20 |
| URI: | http://eprints.utem.edu.my/id/eprint/14851 |
| Statistic Details: | View Download Statistic |
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