KMS Shanghai Institute of Ceramics，Chinese Academy of Sciences
| Leakage electric field in longitudinal vibration from piezoelectric bars | |
| Karaki, Tomoaki; Man, Zhenyong; Xiong, Kainan; Chu, Ruiqing; Li, Guorong | |
| 2019-11-01 | |
| Source Publication | JAPANESE JOURNAL OF APPLIED PHYSICS
 |
| ISSN | 0021-4922 |
| Volume | 58 |
| Subtype | Article |
| Abstract | The edge effects due to leakage electric fields in piezoelectric bar specimens cause non-uniform charge densities, distort electric field lines, and increase capacitance. This increase in capacitance was simulated using finite-element-method-based electric field simulation software. The two-dimensional and three-dimensional simulation results showed that the rate of increase in capacitance decreased when the aspect ratio or dielectric constant increased. To increase measurement accuracy of the dielectric, piezoelectric, and elastic constants of piezoelectric single crystals, the rate of increase in capacitance should be maintained below 0.5%. Actual measurements and theoretical analysis of the transverse- and longitudinal-effect length-extensional vibration in specimens with a small dielectric permittivity were performed. The results indicated that s(jj)(E) can be obtained directly from the f(r) of a transverse-effect length-extensional vibration, but k(ij) and d(ij) must be compensated for if the rate of increase in capacitance is greater than 0.5%. After compensation, it is possible to measure k(ii) from longitudinal-effect length-extensional vibration in specimens with a reasonable dielectric permittivity, but one must avoid using it to measure s(ii)(D) and s(ii)(E) (C) 2019 The Japan Society of Applied Physics |
| DOI | 10.7567/1347-4065/ab3d0f |
| WOS Keyword | MATERIAL CONSTANTS ; CRYSTAL-GROWTH ; DEFECTS |
| Language | 英语 |
| WOS Research Area | Physics |
| Publisher | IOP PUBLISHING LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sic.ac.cn/handle/331005/27504 |
| Collection | 中国科学院上海硅酸盐研究所 |
| Recommended Citation GB/T 7714 | Karaki, Tomoaki,Man, Zhenyong,Xiong, Kainan,et al. Leakage electric field in longitudinal vibration from piezoelectric bars[J]. JAPANESE JOURNAL OF APPLIED PHYSICS,2019,58. |
| APA | Karaki, Tomoaki,Man, Zhenyong,Xiong, Kainan,Chu, Ruiqing,&Li, Guorong.(2019).Leakage electric field in longitudinal vibration from piezoelectric bars.JAPANESE JOURNAL OF APPLIED PHYSICS,58. |
| MLA | Karaki, Tomoaki,et al."Leakage electric field in longitudinal vibration from piezoelectric bars".JAPANESE JOURNAL OF APPLIED PHYSICS 58(2019). |
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