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Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications最新文献

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Study on the sensing position of the saw detector in GC/SAW gas sensor system 气相色谱/声表面saw气体传感器系统中锯形检测器传感位置的研究
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998527
Jiuling Liu, Minghua Liu, Yinge Kong, Shitang He
{"title":"Study on the sensing position of the saw detector in GC/SAW gas sensor system","authors":"Jiuling Liu, Minghua Liu, Yinge Kong, Shitang He","doi":"10.1109/SPAWDA.2014.6998527","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998527","url":null,"abstract":"This paper reports some work on SAW gas sensors based on the condensation-adsorption effect relating to the sensing position of the SAW detector in GC/SAW gas sensor system, and analyzes the response of GC / SAW gas sensor system influenced by the position of the SAW detector where the GC column outlet is aligned at. The SAW device aligned at different position is used in GC/SAW for the detection of dimethyl methylphosphonate (DMMP). The sensor has a superior performance when the GC column outlet is aligned at the middle position of the SAW detector, and difference of response is of ~30%, which could not be ignored.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116639220","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: 1
Analyses of the ultrasonic transducer for nanowire rotary driving 纳米线旋转驱动超声换能器分析
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998597
Xiao-fei Wang, Jun-hui Hu
{"title":"Analyses of the ultrasonic transducer for nanowire rotary driving","authors":"Xiao-fei Wang, Jun-hui Hu","doi":"10.1109/SPAWDA.2014.6998597","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998597","url":null,"abstract":"Rotary driving of a single micro/nano object is an important technology in assembling of micro/nano structures, handling of cells and other biological samples, micro/nano measurement etc. In 2013, our research group reported a method to rotate a single nanowire around a fiberglass in water. Based on the experiments, the rotary driving is caused by the acoustic streaming eddy around the micro manipulation probe (MMP). However, there has been little analyses on the ultrasonic transducer for the nanowire rotary driving, which makes the transducer's optimization impossible. In this work, vibration characteristics of the ultrasonic transducer including the MMP are analyzed by the finite element method (FEM). The working principle proposed in our previous work is verified by the FEM result. Furthermore, guidelines for designing the transducer are achieved.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116913222","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 control system for the ultrasonic 3-DOF micro/nano manipulator 超声三自由度微纳机械臂控制系统
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998517
Ting-zhen Dai, Jun-hui Hu
{"title":"A control system for the ultrasonic 3-DOF micro/nano manipulator","authors":"Ting-zhen Dai, Jun-hui Hu","doi":"10.1109/SPAWDA.2014.6998517","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998517","url":null,"abstract":"A 3D motion control system is designed and constructed to position the manipulating microprobe of an ultrasonic micro/nano manipulator. It is composed of a computer, controller, 3-DOF platform, jig, ultrasonic transducer and manipulating microprobe. The controller utilizes the STM32F103RBT6, which receives the instruction from a computer (via serial port communication), to drive the stepping motors. The interface software is constructed by LabView, for the human-computer interaction. Compared with the existing ultrasonic manipulation systems, the system has a higher positioning accuracy and solves the problem of the microprobe's jitter, which occurs in the beginning and end of the ultrasonic micro/nano manipulation.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"90 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113992203","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: 1
An analysis of z-strip AT-cut quartz thickness-shear resonators z带at切割石英厚度剪切谐振器的分析
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998554
Zinan Zhao, Z. Qian, Bin Wang, Jia-shi Yang
{"title":"An analysis of z-strip AT-cut quartz thickness-shear resonators","authors":"Zinan Zhao, Z. Qian, Bin Wang, Jia-shi Yang","doi":"10.1109/SPAWDA.2014.6998554","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998554","url":null,"abstract":"This paper mainly analyzes the fundamental and third order thickness shear modes of z-strip quartz resonator with the scalar equations derived by Tiersten and Smythe. Effects of the mass ratio and the length of the electrode on the operation modes and resonant frequencies are also studied. Exact modes can be obtained and the results show that the operation modes without nodal lines on the electroded area are suitable for resonator application. With the mass ration increasing the vibration frequency decreases. These results are important in the understanding and design of quartz resonators.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"237 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122372949","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
Detection of plastic zone at crack tip by non-collinear mixing method 用非共线混合法检测裂纹尖端塑性区
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998549
Hai-yang Li, Zhiwu An, Guoxuan Lian, Xiao-min Wang
{"title":"Detection of plastic zone at crack tip by non-collinear mixing method","authors":"Hai-yang Li, Zhiwu An, Guoxuan Lian, Xiao-min Wang","doi":"10.1109/SPAWDA.2014.6998549","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998549","url":null,"abstract":"The non-collinear mixing method for detection of plastic zone at crack tip is studied in this paper. When stress loaded on crack in solid is more than critical stress, which is related to length of crack, the crack will happen to expend fast leading to material fracture. However, critical stress of crack is affected by plastic zone existence at crack tip, so detection of plastic zone at crack tip is significant. By non-collinear mixing method, a nonlinearity parameter is utilized to evaluate plastic zone at crack tip. This paper demonstrates feasibility of non-collinear mixing method for measuring range of plastic zone at crack tip.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"317 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115946991","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: 3
An experimental research of love wave sensor based on LiTaO3/SiO2 structure 基于LiTaO3/SiO2结构的爱波传感器实验研究
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6996811
Gui Chen, Xiao Xie, Wen Wang, Shitang He
{"title":"An experimental research of love wave sensor based on LiTaO3/SiO2 structure","authors":"Gui Chen, Xiao Xie, Wen Wang, Shitang He","doi":"10.1109/SPAWDA.2014.6996811","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6996811","url":null,"abstract":"Temperature characteristics of SiO<sub>2</sub>-coated Love Wave oscillators are presented from 10 °C to 60 °C. Surface skimming bulk wave (SSBW) and Love Wave delay line devices were fabricated on the 36 °YX-LiTaO<sub>3</sub> substrate. Near zero TCF of SiO<sub>2</sub>-coated Love Wave oscillators from 10 °C to 60 °C are demonstrated in the 150MHz range. In the gas sensor experiment on dimethylmethylphosphonate (DMMP) detection, the fabricated SXFA-coated chemical sensor exhibited a threshold detection limit and high sensitivity.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115636617","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: 1
Analysis the characteristics of ECG signals based on the transfer entropy 基于传递熵分析心电信号的特征
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6996812
Chun-qi Li, Xiao-feng Zhang
{"title":"Analysis the characteristics of ECG signals based on the transfer entropy","authors":"Chun-qi Li, Xiao-feng Zhang","doi":"10.1109/SPAWDA.2014.6996812","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6996812","url":null,"abstract":"Transfer entropy reflects the varing trends of two signals. It can show the dynamic and directional information between two systems and can be applied to analysis nonlinear systems better than mutual information. In this article we apply transfer entropy to ECG signals, which extracts from the MIT-BIH ECG signal database. We compute the transfer entropy of ECG signals for different people and make comparison between the healthy and unhealthy group, and among different ages. Simulation results show that the value of transfer entropy for healthy people's ECG signals change little with the different sample length. The transfer entropy values of healthy people are increasing with ages when people's ages range from 20 to 35 years old, while they are gradually decreasing after 35 years old. The overall distribution of healthy people's transfer entropy is greater than that of non-healthy people. Under the case of illness people, the changing law of transfer entropy value is that the youth group is greater than the middle-aged group, and the middle-aged group is greater than the elderly group. The results of this paper have a certain significance in ECG signals analysis and detection.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125309981","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: 1
A theoretical research of B-G wave mode liquid sensor based on piezoelectric layered structure 基于压电层状结构的B-G波型液体传感器的理论研究
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998528
Chunlong Gu, F. Jin
{"title":"A theoretical research of B-G wave mode liquid sensor based on piezoelectric layered structure","authors":"Chunlong Gu, F. Jin","doi":"10.1109/SPAWDA.2014.6998528","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998528","url":null,"abstract":"Owing to the fact that shear horizontal surface wave devices are suitable for chemical and biological sensing because of their high sensitivity to mass deposition occurring on the device's surface/liquid interface, effects of viscous liquid loading on the characters of B-G wave propagation in the piezoelectric layered structure are investigated. The results obtained indicate that the phase velocity of B-G wave increases while the attenuation coefficient decreases as the thickness of metal layer increases. The conclusions obtained in the paper can provide theoretical basis for the design and development of high-performance liquid sensors.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125436326","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: 1
An approach to calculate reflectivity of the 2-D phononic crystals reflecting gratings in two directions 二维声子晶体双向反射光栅反射率的计算方法
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998612
Ce Yuan, Hong-lang Li, Jin-ling Chen, Wen-jia Tian, Yahui Tian, S. He
{"title":"An approach to calculate reflectivity of the 2-D phononic crystals reflecting gratings in two directions","authors":"Ce Yuan, Hong-lang Li, Jin-ling Chen, Wen-jia Tian, Yahui Tian, S. He","doi":"10.1109/SPAWDA.2014.6998612","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998612","url":null,"abstract":"As a new structure, reflecting gratings based on two-dimensional (2-D) piezoelectric phononic crystals (PCs) have been studied for several years. This paper has proposed an approach to analyze the reflectivity of this reflecting grating in two directions. In the method, resonant modal was firstly analyzed with three-dimensional (3-D) finite element method (FEM) using the commercial software COMSOL Multiphysics, which was accurate and be suitable for 2-D PCs structures. With the resonant modal analysis, reflectivity can be obtained. The results show that the reflectivity of the 2-D reflecting grating is 2.2 times higher than 1-D reflecting grating in the x direction and 5.6 times in the y direction. These results demonstrate that the 2-D PCs reflecting grating can be used in SAW resonators to improve their performances. More researches are to be done to apply the 2-D PCs on the SAW resonators.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123659141","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
Equivalent circuit of an in-plane torsional piezoelectric ring with spiral interdigitated electrodes 螺旋交错电极平面内扭转压电环的等效电路
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998513
C. Pan, Liandong Yu, L. Han, Xue-kui Meng
{"title":"Equivalent circuit of an in-plane torsional piezoelectric ring with spiral interdigitated electrodes","authors":"C. Pan, Liandong Yu, L. Han, Xue-kui Meng","doi":"10.1109/SPAWDA.2014.6998513","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998513","url":null,"abstract":"Circular piezoelectric elements with torsional vibration abilities are widely utilized as electromechanical transducers in various ultrasonic devices. In this paper, in-plane torsional vibration of a piezoceramic ring with spiral interdigitated electrodes is studied theoretically and numerically. Design of the electrodes and working principle of the ring are described. Mechanical and electrical models of the vibration are derived and the corresponding equivalent circuit is presented. Resonant frequencies of the in-plane torsional vibration with different boundary conditions are calculated. Trends of the resonant frequencies as a function of the ring ratio are investigated. The results are useful for the further optimization of the proposed piezoelectric element in potential applications.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126281429","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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