Leakage electric field in longitudinal vibration from piezoelectric bars

doi:10.7567/1347-4065/ab3d0f

	Leakage electric field in longitudinal vibration from piezoelectric bars
	Karaki, Tomoaki; Man, Zhenyong; Xiong, Kainan; Chu, Ruiqing; Li, Guorong
刊名	JAPANESE JOURNAL OF APPLIED PHYSICS
	2019-11-01
卷号	58
ISSN号	0021-4922
DOI	10.7567/1347-4065/ab3d0f
文献子类	Article
英文摘要	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
WOS关键词	MATERIAL CONSTANTS ; CRYSTAL-GROWTH ; DEFECTS
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/27504]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 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).