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2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)最新文献

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Development of 1mm Cylindrical Piezoelectric Micromotor 1毫米圆柱形压电微电机的研制
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10045907
Zhoulong Liu, Guangqing Wang
{"title":"Development of 1mm Cylindrical Piezoelectric Micromotor","authors":"Zhoulong Liu, Guangqing Wang","doi":"10.1109/SPAWDA56268.2022.10045907","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10045907","url":null,"abstract":"A piezoelectric micromotor with diameter of 1mm and length of 5mm is developed. The motor is basically composed of a solid cylindrical metal stator and rotor. Two surfaces of the metal cylinder stator were polished at an angle of 90° with respect to each other and two uniformly rectangular piezoelectric patches were bonded onto the flat orthogonal surfaces with epoxy resin. The rotor made of brass metal is pressed against on the stator by its elastic deformation. The finite element model and simulations of the stator was carried out by a finite element analysis code, ANSYS to verify the mode shapes generated at the resonance frequencies. The influences of the system parameters on the vibration characteristics of the stator were also conducted. The designed resonance frequency of the developed motor is 17 kHz. The length of the stator increases will greatly decrease the resonance frequency and the thickness of the PZT patches will increase the resonance frequency. The elliptic trajectory is obtained when two orthogonal AC voltages were applied on the two PZT patches, and the maximum vibration displacement is 15.6 um when the excited voltage is 100V. Due to the basically two parts, the developed motor is simple and easy to fabricate compared with other motors, it can be used in scanning fiber endoscopy.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117200841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of Piezoelectric Energy Harvester Using Equilibrium Optimizer Algorithm 利用平衡优化算法优化压电能量采集器
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10046019
Jian-peng Sun, X. Li, J. Gu, M. Pu, H. Chen
{"title":"Optimization of Piezoelectric Energy Harvester Using Equilibrium Optimizer Algorithm","authors":"Jian-peng Sun, X. Li, J. Gu, M. Pu, H. Chen","doi":"10.1109/SPAWDA56268.2022.10046019","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10046019","url":null,"abstract":"Piezoelectric energy harvester has been widely used in nowadays. For the cantilever-type piezoelectric vibration energy harvester, the dimension and location of the piezoelectric patch on the elastic cantilever are key elements which impact the performance of the output voltage and power. To enhance the ouput voltage and power by optimizing the parameters of piezoelectric patch, a novel method employing the Equilibrium Optimizer (EO) algorithm was proposed in this work. The optimal dimension and location of the piezoelectric energy harvester in first order of vibration modes are analyzed by finite element method and then compared with the one without optimization, and it is found that after optimization, the performance of the piezoelectric energy harvester has a remarkable improvement.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124742398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effective Properties of one-Dimensional Hexagonal Qouasicrystal Reinforced Composites 一维六方准晶增强复合材料的有效性能
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10045893
Zhi-Dan Hu, Xin Feng, Xiang Mu, Liangliang Zhang, Yang Gao
{"title":"The Effective Properties of one-Dimensional Hexagonal Qouasicrystal Reinforced Composites","authors":"Zhi-Dan Hu, Xin Feng, Xiang Mu, Liangliang Zhang, Yang Gao","doi":"10.1109/SPAWDA56268.2022.10045893","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10045893","url":null,"abstract":"Eshelby tensors regard as the fundamental theory of micromechanics to deal with the particle mixed composite materials. In order to deal with the problem of the effective properties of piezoelectric material reinforced by one-dimensional hexagonal quasicrystal particles, a theoretical model to conduct the effective properties of the composites is obtained with assistance of the received Eshelby tensor. According to these Eshelby tensors, we can establish a connection between inclusions and matrix by employing the equivalent inclusion method. Based on the numerical results, it is obviously noted that the received effective properties of the composites are the functions in term of the particles volume fractionand the shape of particle. Furthermore, it is clearly observed that the effective properties have a markedly changes with respect to the aspect ratio of the particles and the particles volume fraction.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128217471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on Household Ultrasonic Washing Machine and Ultrasonic Transducer Based on Spherical Radiation 基于球面辐射的家用超声波洗衣机及超声换能器的研究
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10046027
Wenjing Liu, Xibao Liu, Hangchao Jin, Jianqiang Huang, Qinglong Huang, Zeming Wang
{"title":"Research on Household Ultrasonic Washing Machine and Ultrasonic Transducer Based on Spherical Radiation","authors":"Wenjing Liu, Xibao Liu, Hangchao Jin, Jianqiang Huang, Qinglong Huang, Zeming Wang","doi":"10.1109/SPAWDA56268.2022.10046027","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10046027","url":null,"abstract":"On the basis of analysis by analytic theory and finite element method, the manufacturing and test are both done about the plane and spherical surface transducer. We can find, on the same radiation diameter, the later can be applied more electric power and have wider radiation range, more beautiful shape than the former. The washing machine using the spherical radiation transducer has the advantages of bigger power, more efficiency, better effect etc. By cooperating with third -party authority, the abilities of sterilization and pesticide residue removal are both tested by using the washing machine based on the spherical radiation transducer. The laws have been grasped about the effects of sterilization and pesticide residue removal changing with temperature, power, the volume of the container. The best working points have been obtained about the sterilization and pesticide residue removal on the specified conditions. We can conclude that the washing machine based on the spherical radiation transducer does not only have the good washing ability, but also have good effect of sterilization and pesticide residue removal.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128278474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Circumferential Horizontal Shear Waves in an Inhomogeneous 1-D Quasi-Crystal Hollow Cylinder 非均匀一维准晶体空心圆柱体中的周向水平横波
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10045999
Pei-Xin Wang, Jiangong Yu, Bo Zhang
{"title":"Circumferential Horizontal Shear Waves in an Inhomogeneous 1-D Quasi-Crystal Hollow Cylinder","authors":"Pei-Xin Wang, Jiangong Yu, Bo Zhang","doi":"10.1109/SPAWDA56268.2022.10045999","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10045999","url":null,"abstract":"In this paper, equations of wave motion for circumferential horizontal shear (SH) waves in an inhomogeneous 1-D quasi-crystal hollow cylinder are derived. Dispersion relation of SH waves is calculated by employing the Legendre polynomial series. The influence of phonon-phason coupling, inhomogeneity and geometric parameters on dispersion curves is analyzed. Results show that the angular frequency of phonon mode increases, and that of phason mode decreases as phonon-phason coupling constants Ri increase. The numerical results are of reference significance for the design and optimization of quasi-crystal structures.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132468039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrasonic Method for 2D Stiffness Recognition 二维刚度识别的超声方法
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10046015
Lehui Yang, Jinling Zhao, Yingying Shi, Jianping Zhao
{"title":"Ultrasonic Method for 2D Stiffness Recognition","authors":"Lehui Yang, Jinling Zhao, Yingying Shi, Jianping Zhao","doi":"10.1109/SPAWDA56268.2022.10046015","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10046015","url":null,"abstract":"Impact damages in composite structures are always accompanied by material degradation, manifested as spatial stiffness variation. To monitor the health condition of the structures, researchers adopted non-destructive ultrasonic methods to continually identify the elastic properties, which, however, are confined to one-dimension scale. As a matter of fact, Impact damages in composites distribute unevenly inside the structures, necessitating material inspection globally. In this paper, a local wavenumber imaging method for global stiffness recognition was proposed. As a pre-research for anisotropic composites, a simple case of metal plate with reduced local stiffness is firstly studied by finite element methods. Results show that the 2D stiffness of the damaged area in the metal plate has obvious change, implying the feasibility of the local wavenumber method for 2D stiffness identification in composite materials.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"45 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132968925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Parametric Studies of Multilayer Structure Surface Acoustic Wave Resonators 多层结构表面声波谐振器的参数化研究
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10045991
J. Shen, Zengtian Lu, Hui Zhang
{"title":"Parametric Studies of Multilayer Structure Surface Acoustic Wave Resonators","authors":"J. Shen, Zengtian Lu, Hui Zhang","doi":"10.1109/SPAWDA56268.2022.10045991","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10045991","url":null,"abstract":"Multilayer structure is a potential way to obtain high-performance surface acoustic wave (SAW) devices. In applications, the combination of high propagation velocity and strong piezoelectric coupling is required for acoustic modes applied to wideband high-frequency SAW devices. To meet the requirements, an optimal orientation (90° 90° 45°) LiNbO3 is investigated by a rigorous numerical simulation of the Green’s functions of LLSAWs and an accurate extraction of the propagation losses. In addition, the numerical simulation method and finite element method (FEM) are applied to investigate how parameters of high acoustic impedance (HAI) materials affect the propagation and the resonance characteristics of SAW resonators. The results demonstrate that HAI materials with proper density, rigidity, acoustic impedance and thickness could improve the performance of the SAW devices.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126738980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Force Frequency Coefficient of Rectangle Quartz Crystal Resonators Based Load Sensor 基于矩形石英晶体谐振器的负载传感器的力频系数
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10046043
Li-Xia Ma, Jia-Chao Yuan, Qiang Zhou, Ji Wang, Lijun Yi
{"title":"Force Frequency Coefficient of Rectangle Quartz Crystal Resonators Based Load Sensor","authors":"Li-Xia Ma, Jia-Chao Yuan, Qiang Zhou, Ji Wang, Lijun Yi","doi":"10.1109/SPAWDA56268.2022.10046043","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10046043","url":null,"abstract":"AT-Cut quartz crystal resonators (QCRs) are widely used as load sensors in electron device and engineering machinery industry. The high thickness shear vibration frequency of QCRs is sensitive to the initial mechanical stresses. Therefore, based on this force frequency effect, we can obtain the external force by monitoring of the change of the frequency of QCRs. Here, we check and study the force-frequency effect of the rectangle QCRs, with two opposed concentrated external force on the middle of the rectangle crystal plate edge parallel and vertical to the x crystallographic direction respectively. The influences of the geometric dimension of QCRs on the FFE are investigated. In the parallel loading condition, the frequency increases with the increasing of external force. When edge is small, the slope of the force-frequency effect decreases with the increasing of edge length. When edge is large (about twice of the opposite edge), the slope is nearly a constant and not change. In this vertical loading case, the frequency decreases with the increasing of external force. The variation of the slope of the force-frequency effect is complicated first, and the slope keep as a constant when the variable edge is twice of the opposite edge. The related mechanism of the stress component distribution is discussed. This work is useful for developing the QCRs based load sensor.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123385075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Design of Acoustic Catalytic Sensing System for Trace Gas Detection 痕量气体声催化传感系统的设计
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10045875
M. Cai, Junhui Hu
{"title":"A Design of Acoustic Catalytic Sensing System for Trace Gas Detection","authors":"M. Cai, Junhui Hu","doi":"10.1109/SPAWDA56268.2022.10045875","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10045875","url":null,"abstract":"Our research team proposed and developed an acoustic catalytic method to enhance the sensing performance of gas sensors. In this work, the design method for an acoustically catalyzed metal oxide (MOX) gas sensor system is investigated for low concentration target gas detection. A sensor control system, which is based on the real-time operating system FreeRTOS and cooperates with hardware such as the signal generation, power amplification and impedance matching circuits, is implemented with the functions of generation and assignment of the tasks such as excitation of ultrasonic transducer, data acquisition of MOS sensor and current feedback control. One-click operation, and real-time data display and saving in the experimental process are realized by the LabVIEW. The experimental results show that the designed system can significantly improve the sensitivity of the MOX gas sensor, and reduce its lower detection limit.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126588264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fixed Frequency Point of the Admittance Characteristics of Piezoelectric Transformer with Different Loads 不同负载下压电变压器导纳特性的固定频率点
2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2022-10-11 DOI: 10.1109/SPAWDA56268.2022.10045857
Limin Ju, Bin Ju
{"title":"Fixed Frequency Point of the Admittance Characteristics of Piezoelectric Transformer with Different Loads","authors":"Limin Ju, Bin Ju","doi":"10.1109/SPAWDA56268.2022.10045857","DOIUrl":"https://doi.org/10.1109/SPAWDA56268.2022.10045857","url":null,"abstract":"Piezoelectric transformer is a new type of transformer whose input and output characteristics often change with the load and cannot be maintained in a stable state. This work uses multiphysics coupling simulation method to study the impedance–frequency characteristics of single-layer rectangular piezoelectric transformer under different loads. Results show that the admittance–frequency curves under different loads have an intersection point, that is, the admittance fixed point. Compared with that in other working frequencies, the input power of the piezoelectric transformer working at the \"intersection\" frequency remains stable and does not change with the load.","PeriodicalId":387693,"journal":{"name":"2022 16th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116056412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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