Measured Output Voltages of Piezoelectric Devices Depend on the Resistance of Voltmeter
文献类型：期刊论文
| 作者 | Su, Yewang1,2 ; Dagdeviren, Canan3,4; Li, Rui5
|
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2015-09-02 |
| 卷号 | 25期号:33页码:5320-5325 |
| 通讯作者邮箱 | yewangsu@imech.ac.cn ; canand@mit.edu |
| 关键词 | energy harvesters piezoelectric devices zirconate titanate stretchable electronics voltage output |
| ISSN号 | 1616-301X |
| 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 |
| 通讯作者 | Su, YW (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, 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 |
| 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. |
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来源：力学研究所
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