2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)最新文献_第9页

Analysis of energy efficiency of a box type sono-reactor at resonance 箱式声纳反应器共振能量效率分析

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167178

Hanmin Peng, Jin-juan Zhou, Jun-hui Hu

{"title":"Analysis of energy efficiency of a box type sono-reactor at resonance","authors":"Hanmin Peng, Jin-juan Zhou, Jun-hui Hu","doi":"10.1109/SPAWDA.2011.6167178","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167178","url":null,"abstract":"The acoustic cavitation effect has huge potential applications in a number of industrial fields. Nevertheless, the traditional sono-reactors cannot completely satisfy the industrial processing demands nowadays. One reason for this is the operational cost due to the electric energy consumption. Aiming to overcome the disadvantage, based on a box type sono-reactor (inner size 125.4×40×47 mm3) with one PZT ceramic vibrator and 0.19 L processed solution, the whole system's energy utilization efficiencies at two resonance frequencies, 12.13 kHz and 57.05 kHz, have been investigated. Using calorimetric method and titration, the radiated acoustic energy, total energy efficiency, cavitation efficiency, and electroacoustic efficiency have been measured, respectively. It is found that the more the input volume power is, the less the total energy efficiency would be, both at 12.13 kHz and 57.05 kHz; the total energy efficiency of 12.13 kHz is greater than that of 57.05 kHz, because the micro bubbles caused by the acoustic cavitation absorb acoustic energy. To obtain good energy efficiency and cavitation effect, the input electric power per unit volume should be proper.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129295734","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

Preparation and piezoelectric properties of textured PZT ceramics using PZT nano fibers PZT纳米纤维织构PZT陶瓷的制备及其压电性能

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167208

Caifeng Chen, Xiao-li Han, Jun Liu, Zhidan Ding

{"title":"Preparation and piezoelectric properties of textured PZT ceramics using PZT nano fibers","authors":"Caifeng Chen, Xiao-li Han, Jun Liu, Zhidan Ding","doi":"10.1109/SPAWDA.2011.6167208","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167208","url":null,"abstract":"PZT nano piezoelectric fibers were prepared by hydrothermal-template method. The effects of some reaction conditions on preparation were investigated, such as PH value, reaction temperature and time. The optimal hydrothermal conditions for preparing PZT nano fibers are that pH value is 13, reaction temperature is 190 °C, hydrothermal reactor filling degree is 60 %–70 %, reaction time is 10h, and the activated carbon is as the template. Based on the observation from scanning electron microscopy (SEM) show that the diameter of PZT fibers is around 100nm with the length up to a few microns, and the fibers are arranged orderly in one direction. PZT ceramics made of the fibers was obtained through pressing carefully the fibers along a direction as possible, then sintering at the temperature of 1050 °C for 1.5 hour. The textured PZT ceramic microstructure was analyzed using X-ray diffraction (XRD) techniques. The piezoelectric properties were determined by impedance analyzer. The results indicated that the PZT ceramic had a high value of kt/kp (1.8567) compared with the conventional PZT ceramic made of milled PZT powder. It means that the novel textured PZT ceramic shows very good anisotropic property and has potential application as a sensor or device with high direction sensitivity.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130748726","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

Reconstruction of vibro-acoustic field in half-space based on wave superposition method using dual surface measurement 基于双面测量的波叠加法半空间振动声场重建

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167223

Chao Sun, Yuan-an He, Yuechan Liu, D. Shang

引用次数: 0

Electron beam direct writing technology and application in the research of high frequency SAW devices 电子束直写技术及其在高频SAW器件研究中的应用

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167238

Z. Fan, Xiao yang Chen, Xu-ming Bian

{"title":"Electron beam direct writing technology and application in the research of high frequency SAW devices","authors":"Z. Fan, Xiao yang Chen, Xu-ming Bian","doi":"10.1109/SPAWDA.2011.6167238","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167238","url":null,"abstract":"Communication technologies develop very fast in recent years, especially mobile communication technology. One of the key parts of communication system is the SAW device, which development directions are high frequency, low insert loss and miniaturization. As the frequency is higher, requirement of optical lithography technology increases and the conventional contact lithography technology is inefficient. Three kind of lithography is ideal: UV projection lithography, Electron beam direct writing technology and X-ray lithography. In order to reduce fabrication cost and development cycle, a variably shaped electron beam lithography system (JBX-6A□, JOEL, 1980) was adopted. This system was mainly used for optical lithography reticle fabrication, and it had a low resolution of 1µm. In order to develop the potential capability of the electron beam direct writing system, specially designed substrate exposure clamp, electron beam proximity effect correction graphic design technology and different shaped beam size combination exposure technology were adopted, and the parameter of resist coating, pre-bake, exposure dose, hard bake, etching temperature and time were optimized. As a result, this system got a resolution of 0.5µm. In this paper, research and batch fabrication task of SAW filter (900MHz, 1272MHz, 1575.42MHz and 2300MHz, etc) and SAW resonator (1320MHz and 1440MHz, etc) were successfully completed.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132982652","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

Optimum design for stress type hybrid ultrasonic motor using longitudinal and torsional vibration modes 采用纵向和扭转振动模式的应力型混合超声电机优化设计

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167183

Lin Yang, Chunsheng Zhao

引用次数: 2

A nonlinear finite element analysis of high frequency vibrations of quartz crystal plates 石英晶体板高频振动的非线性有限元分析

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167259

Ji Wang, Yang-yang Chen, R. Wu, Li-hong Wang, Huimin Jing, Jianke Du, Yuantai Hu, Guo-qing Li

引用次数: 1

Drive of micro particles around vibration node of copper substrate vibrating in flexural mode 铜基底弯曲振动节点周围微粒子的驱动

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167187

Hua-qing Li, Jun-hui Hu, Xiao-bo Zhu, Yu-jie Zhou, Ning Li

引用次数: 0

The enhanced ferromagnetic property of BiFeO3-YMnO3 system BiFeO3-YMnO3体系的增强铁磁性能

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167248

B. Wang, Ying Yang, W. Qian, Lin-lin Liu, Yiping Wang

引用次数: 1

Inversion of sound speed profile based on waveform structure matching 基于波形结构匹配的声速剖面反演

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167199

Wei Zhang, Yi-wang Huang, Li Li, Yang Song

引用次数: 3

Inharmonic overtones in partially plated AT-cut quartz crystal plates 在部分镀at切割石英晶体板不谐音泛音

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167291

Q. Pan, Shih-Yung Pao, M. Chao, Ji Wang

{"title":"Inharmonic overtones in partially plated AT-cut quartz crystal plates","authors":"Q. Pan, Shih-Yung Pao, M. Chao, Ji Wang","doi":"10.1109/SPAWDA.2011.6167291","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167291","url":null,"abstract":"Spurious modes caused by inharmonic overtones are one of the most familiar problems of AT-cut quartz resonators. Mindlin and Lee had explained this phenomenon theoretically in detail in the 1960's [1]. Their calculation results were also shown to be in good agreement with the experimental data from Curran and Koneval, which are based on quartz plates with relatively large length, width and thickness. Today, the dimensions of quartz plates have decreased enormously due to continuous miniaturization. Whether the calculations of Mindlin and Lee's theory still have great agreement with the measurement data of the miniaturization AT-cut quartz plate is the problem we have to solve. In this paper, the frequency spectrum of quartz plates with partial electrodes at different dimensions was calculated and compared with the experimental data of miniaturized plates. The influence of the length and width of quartz crystal plates and electrodes, and size of mounting area are also studied. It shows the theory still can estimate frequency of inharmonic overtone quite well and the dimensions of plates have little influence on inharmonic overtones. Such results are useful in the design improvement process of quartz crystal resonators.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122702214","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