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Leakage electric field in longitudinal vibration from piezoelectric bars
Karaki, Tomoaki; Man, Zhenyong; Xiong, Kainan; Chu, Ruiqing; Li, Guorong
2019-11-01
Source PublicationJAPANESE JOURNAL OF APPLIED PHYSICS
ISSN0021-4922
Volume58
SubtypeArticle
AbstractThe 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
DOI10.7567/1347-4065/ab3d0f
WOS KeywordMATERIAL CONSTANTS ; CRYSTAL-GROWTH ; DEFECTS
Language英语
WOS Research AreaPhysics
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://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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