Measured Output Voltages of Piezoelectric Devices Depend on the Resistance of Voltmeter

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Measured Output Voltages of Piezoelectric Devices Depend on the Resistance of Voltmeter
	Su, Yewang1,2 ; Dagdeviren, Canan 3,4; Li, Rui 5
刊名	ADVANCED FUNCTIONAL MATERIALS
	2015-09-02
通讯作者邮箱	yewangsu@imech.ac.cn ; canand@mit.edu
卷号	25 期号:33 页码:5320-5325
关键词	energy harvesters piezoelectric devices zirconate titanate stretchable electronics voltage output
ISSN号	1616-301X
通讯作者	Su, YW (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
产权排序	[Su, Yewang] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Su, Yewang] Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL 60208 USA; [Dagdeviren, Canan] MIT, David H Koch Inst Integrat Canc Res, Cambridge, MA 02138 USA; [Dagdeviren, Canan] Univ Illinois, Frederick Seitz Mat Res Lab, Beckman Inst Adv Sci & Technol, Dept Mat Sci & Engn, Urbana, IL 61801 USA; [Li, Rui] Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China
中文摘要	Piezoelectric mechanical energy harvester (MEH) has been developed as an important emerging variant of piezoelectric devices. Experiments in the literature show that the voltage-time curves of piezoelectric devices encompass both positive and negative characteristics even though the strain in the piezoelectric material is always positive during the applied cycling load. This does not agree with the results predicted by the piezoelectric theory of open circuit. Here, both the experiments and theory are performed to understand this important problem. A zirconate titanate (PZT) MEH is fabricated and the output voltages are recorded with three voltmeters. It is found that the measured voltages depend on the resistance of voltmeter. The peak value of voltage increases with the increase of the resistance of voltmeter, which is contrary to the established knowledge that the measurement results are independent of the instruments used. A theoretical model considering the voltmeter with finite resistance is established. The charge is allowed to go through the voltmeter and switch the directions during increasing and releasing of strain. The results by this model agree well with those from the experiments. The findings suggest that the resistance of voltmeter should be reported for voltage measurement of the piezoelectric devices.
英文摘要	Piezoelectric mechanical energy harvester (MEH) has been developed as an important emerging variant of piezoelectric devices. Experiments in the literature show that the voltage-time curves of piezoelectric devices encompass both positive and negative characteristics even though the strain in the piezoelectric material is always positive during the applied cycling load. This does not agree with the results predicted by the piezoelectric theory of open circuit. Here, both the experiments and theory are performed to understand this important problem. A zirconate titanate (PZT) MEH is fabricated and the output voltages are recorded with three voltmeters. It is found that the measured voltages depend on the resistance of voltmeter. The peak value of voltage increases with the increase of the resistance of voltmeter, which is contrary to the established knowledge that the measurement results are independent of the instruments used. A theoretical model considering the voltmeter with finite resistance is established. The charge is allowed to go through the voltmeter and switch the directions during increasing and releasing of strain. The results by this model agree well with those from the experiments. The findings suggest that the resistance of voltmeter should be reported for voltage measurement of the piezoelectric devices.
分类号	二类/Q1
类目[WOS]	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]	NANOGENERATOR ; NANOFIBERS ; CERAMICS ; BEHAVIOR
收录类别	SCI
原文出处	http://dx.doi.org/10.1002/adfm.201502280
语种	英语
WOS记录号	WOS:000360724600009
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/55772]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL 60208 USA 3.MIT, David H Koch Inst Integrat Canc Res, Cambridge, MA 02138 USA 4.Univ Illinois, Frederick Seitz Mat Res Lab, Beckman Inst Adv Sci & Technol, Dept Mat Sci & Engn, Urbana, IL 61801 USA 5.Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Su, Yewang,Dagdeviren, Canan,Li, Rui. Measured Output Voltages of Piezoelectric Devices Depend on the Resistance of Voltmeter[J]. ADVANCED FUNCTIONAL MATERIALS,2015,25(33):5320-5325.
APA	Su, Yewang,Dagdeviren, Canan,&Li, Rui.(2015).Measured Output Voltages of Piezoelectric Devices Depend on the Resistance of Voltmeter.ADVANCED FUNCTIONAL MATERIALS,25(33),5320-5325.
MLA	Su, Yewang,et al."Measured Output Voltages of Piezoelectric Devices Depend on the Resistance of Voltmeter".ADVANCED FUNCTIONAL MATERIALS 25.33(2015):5320-5325.