Abstract
In this paper, the resonant spectrum of the piezoelectric ceramic thin disk with different diameter-to-thickness ratio in the frequency range from 50 kHz to 1 MHz was studied by the impedance analysis method. If the diameter-to-thickness ratio was higher than 15, the vibration mode of the piezoelectric ceramic thin disk was pure radial mode, besides the fundamental radial mode, there are some radial overtone modes with inharmonic frequency separation in the entire frequency range from 50 kHz to 1 MHz. The number of radial overtone modes depended on the diameter; the ceramic disk with larger diameter had more overtone modes than that of ceramic disk with smaller diameter. With the same diameter, the resonant frequency ratio of fundamental mode to that of overtone mode was decreased with the increasing of thickness. With the same thickness, the resonant frequency ratio of fundamental mode to that of overtone mode was decreased with the decreasing of diameter. But when the diameter-to-thickness ratio was less than 15, some other vibration modes were existed in the frequency range higher than 600 kHz. From experiment, it is found that the effective electromechanical coupling factor keff was decreased with the increasing of overtone mode order. The decrease of effective electromechanical coupling factor keff was due to the less electrical energy transfer to mechanical energy with the increasing of overtone mode order. In the equivalent circuit, the motional resistance R1 and the motional inductance L1 were increased, but the motional capacitance C1 and the capacitance Co were decreased with the increasing of overtone mode order.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013 |
| Publisher | IEEE Computer Society |
| ISBN (Print) | 9781479932894 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
| Event | 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013 - Changsha, China Duration: 2013 Oct 25 → 2013 Oct 27 |
Publication series
| Name | Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013 |
|---|
Other
| Other | 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013 |
|---|---|
| Country | China |
| City | Changsha |
| Period | 13-10-25 → 13-10-27 |
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All Science Journal Classification (ASJC) codes
- Acoustics and Ultrasonics
Cite this
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Resonant and equivalent circuit characteristics of piezoelectric ceramics disk with different (diameter-to-thickness) ratio. / Chure, Ming Cheng; Wu, Long; Wu, King Kung; Lin, Yu Chang; Wu, Meng Jiun; Tung, Chia Cheng; Lu, Yi Yu.
Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013. IEEE Computer Society, 2013. 6841107 (Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Resonant and equivalent circuit characteristics of piezoelectric ceramics disk with different (diameter-to-thickness) ratio
AU - Chure, Ming Cheng
AU - Wu, Long
AU - Wu, King Kung
AU - Lin, Yu Chang
AU - Wu, Meng Jiun
AU - Tung, Chia Cheng
AU - Lu, Yi Yu
PY - 2013/1/1
Y1 - 2013/1/1
N2 - In this paper, the resonant spectrum of the piezoelectric ceramic thin disk with different diameter-to-thickness ratio in the frequency range from 50 kHz to 1 MHz was studied by the impedance analysis method. If the diameter-to-thickness ratio was higher than 15, the vibration mode of the piezoelectric ceramic thin disk was pure radial mode, besides the fundamental radial mode, there are some radial overtone modes with inharmonic frequency separation in the entire frequency range from 50 kHz to 1 MHz. The number of radial overtone modes depended on the diameter; the ceramic disk with larger diameter had more overtone modes than that of ceramic disk with smaller diameter. With the same diameter, the resonant frequency ratio of fundamental mode to that of overtone mode was decreased with the increasing of thickness. With the same thickness, the resonant frequency ratio of fundamental mode to that of overtone mode was decreased with the decreasing of diameter. But when the diameter-to-thickness ratio was less than 15, some other vibration modes were existed in the frequency range higher than 600 kHz. From experiment, it is found that the effective electromechanical coupling factor keff was decreased with the increasing of overtone mode order. The decrease of effective electromechanical coupling factor keff was due to the less electrical energy transfer to mechanical energy with the increasing of overtone mode order. In the equivalent circuit, the motional resistance R1 and the motional inductance L1 were increased, but the motional capacitance C1 and the capacitance Co were decreased with the increasing of overtone mode order.
AB - In this paper, the resonant spectrum of the piezoelectric ceramic thin disk with different diameter-to-thickness ratio in the frequency range from 50 kHz to 1 MHz was studied by the impedance analysis method. If the diameter-to-thickness ratio was higher than 15, the vibration mode of the piezoelectric ceramic thin disk was pure radial mode, besides the fundamental radial mode, there are some radial overtone modes with inharmonic frequency separation in the entire frequency range from 50 kHz to 1 MHz. The number of radial overtone modes depended on the diameter; the ceramic disk with larger diameter had more overtone modes than that of ceramic disk with smaller diameter. With the same diameter, the resonant frequency ratio of fundamental mode to that of overtone mode was decreased with the increasing of thickness. With the same thickness, the resonant frequency ratio of fundamental mode to that of overtone mode was decreased with the decreasing of diameter. But when the diameter-to-thickness ratio was less than 15, some other vibration modes were existed in the frequency range higher than 600 kHz. From experiment, it is found that the effective electromechanical coupling factor keff was decreased with the increasing of overtone mode order. The decrease of effective electromechanical coupling factor keff was due to the less electrical energy transfer to mechanical energy with the increasing of overtone mode order. In the equivalent circuit, the motional resistance R1 and the motional inductance L1 were increased, but the motional capacitance C1 and the capacitance Co were decreased with the increasing of overtone mode order.
UR - http://www.scopus.com/inward/record.url?scp=84904625457&partnerID=8YFLogxK
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U2 - 10.1109/SPAWDA.2013.6841107
DO - 10.1109/SPAWDA.2013.6841107
M3 - Conference contribution
AN - SCOPUS:84904625457
SN - 9781479932894
T3 - Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
BT - Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
PB - IEEE Computer Society
ER -