2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)最新文献_第7页

Unidirectional and tunable acoustic diode made by asymmetric double layer metallic grating with periodical structure 由周期性结构的非对称双层金属光栅制成单向可调谐声学二极管

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7830028

Jie Li, Jiujiu Chen

引用次数: 2

A study on the equivalent circuit of longitudinal vibration piezoelectric transformers with contacted heat transfer device 带接触式换热装置的纵向振动压电变压器等效电路研究

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7829977

Pei-yang Li, Zhile Han, Weiquan Shao, Jie Xu, Tianming Gu, Zhangjian Li

引用次数: 1

The stick-slip motion of the smooth impact drive mechanism based on trapezoid drive signal 基于梯形驱动信号的光滑冲击驱动机构的粘滑运动

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7830034

Dong Chen, Xiaoming Lu, Tinghai Cheng, Hengyu Li

引用次数: 0

Advances in a developed surface acoustic wave based particulate matter 2.5 monitor 基于表面声波的颗粒物2.5监测仪的研制进展

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7829993

Wenchang Hao, Z. Nie, Jiuling Liu, Minghua Liu, S. He

引用次数: 4

Modeling of harmonic measurement radiated by a plane circular piston in fluids 流体中平面圆形活塞辐射谐波测量的建模

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7830007

Zhiwu An, Zhuo-chen Wang, Hai-yang Li, X. Jiang

引用次数: 0

A variational beam model for MEMS driven by electrostatic and piezoelectric forces 静电和压电驱动微机电系统的变分梁模型

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7829955

Ya-rong Zhou, Xu Yang, Tenghao Yin, B. Wang

引用次数: 0

Thin film piezoelectric devices integrated on CMOS 集成在CMOS上的薄膜压电器件

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7829980

M. S. Pandian, E. Ferrer, W. S. Tay, V. Madhaven, A. K. Kantimahanti, G. Sobreviela, A. Uranga, N. Barniol

引用次数: 8

An improved frequency tracking strategy in ultrasonic transducer 一种改进的超声换能器频率跟踪策略

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7829950

Lan Xu, Ming Yang, Shiyang Li, Xiaoqi Zhuang, Tianyue Yang, Mike Zhou

{"title":"An improved frequency tracking strategy in ultrasonic transducer","authors":"Lan Xu, Ming Yang, Shiyang Li, Xiaoqi Zhuang, Tianyue Yang, Mike Zhou","doi":"10.1109/SPAWDA.2016.7829950","DOIUrl":"https://doi.org/10.1109/SPAWDA.2016.7829950","url":null,"abstract":"The realization of automatic frequency tracking is of great significance in ultrasonic transducer due to its wide application area in nowadays industrial manufacture. However, excessive overshoot current, serious overheating and long response time remain the urgent issue. To tackle these existing ultrasonic frequency tracking problem, this paper proposes a hybrid technique that integrates fuzzy control theory with PID control on the system. The technique involves coarse adjustment by fuzzy control and accurate adjustment by PID. Then, direct digital synthesizer (DDS) is used to generate required PWM wave with high accuracy. Initial driving frequency of the system and its corresponding phase difference of the feedback voltage and current can both be acquired during sweep frequency test before the tracking process, which corresponds to the parallel resonant point where the current is the minimum. This phase difference is also regarded as the target tracking value. During the tracking process, fuzzy control will be adopted when phase difference value error between feedback value and target value is greater than 10%, or PID will be used. Current difference AI and change rate AI/Af are used as two input values while driving frequency is the output value in fuzzy control when coarse adjustment is needed. Incremental PID arithmetic is used when accurate adjustment is needed. The result shows that the technique can reduce overshoot current of the ultrasonic transducer by approximately 8%, shorten the time for achieving stabilization of the system by 12%. In conclusion, this novel hybrid technique can quickly and stably track the frequency of parallel resonant point of the ultrasonic transducer system, meanwhile keep the whole system operating more efficiency and stable.","PeriodicalId":243839,"journal":{"name":"2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116639760","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: 7

Inter-source passive body-wave interferometry by multidimensional deconvolution (MDD) 基于多维反褶积的源间无源体波干涉测量

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7830021

Liwen Xu, Hao Chen, Xiumei Zhang, Xiuming Wang

引用次数: 0

A novel 2D piezo-nanopositioning stage based on triangle amplifier mechanism 一种基于三角放大机构的二维压电纳米定位平台

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI: 10.1109/SPAWDA.2016.7830013

Xuewen Liu, Weiqing Huang, Yin Wang

{"title":"A novel 2D piezo-nanopositioning stage based on triangle amplifier mechanism","authors":"Xuewen Liu, Weiqing Huang, Yin Wang","doi":"10.1109/SPAWDA.2016.7830013","DOIUrl":"https://doi.org/10.1109/SPAWDA.2016.7830013","url":null,"abstract":"Due to their high resolution and positioning accuracy, piezo-nanoposititioning stages are widely used in precision and ultra-precision fields. A nano-positioning platform with large travel range and bidirectional symmetrical output characteristic is proposed. Theoretical static model develops the relationships among output force, displacement, static stiffness and the structure parameters of the platform. Static analysis of the platform is carried out by ANSYS workbench. Finally, the theoretical and the finite element models are confirmed by experiments. The experimental results of the prototype show that the output performances in X and Y direction are similar and both of them are within an 8% deviation from the theoretical value. The stroke of the stage reaches to 41.6μm and 42.9μm in X and Y directions respectively and is directly proportional to the amplitude of the input sinusoidal voltage of 10Hz. The minimum output displacement step is 50nm. The nano-positioning stage designed is featured with bidirectional symmetrical output characteristic and millisecond starting characteristic, with high positioning precision.","PeriodicalId":243839,"journal":{"name":"2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114669515","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: 4