2019 IEEE International Ultrasonics Symposium (IUS)最新文献_第7页

Development of a novel wireless and passive Love wave based ice sensor 一种新型无线无源Love波冰传感器的研制

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8926145

Yining Yin, Wen Wang, Yana Jia, Yong Liang

{"title":"Development of a novel wireless and passive Love wave based ice sensor","authors":"Yining Yin, Wen Wang, Yana Jia, Yong Liang","doi":"10.1109/ULTSYM.2019.8926145","DOIUrl":"https://doi.org/10.1109/ULTSYM.2019.8926145","url":null,"abstract":"a novel configuration of wireless and passive Love wave based ice sensing device employing waveguide structure of SiO2/36°YX LiTaO3 with high mass sensitivity and excellent temperature stability was presented in this work. A reflective delay line consists of a transducer and three reflectors on 36° YX LiTaO3 substrate with SiO2 guiding layer was developed as the sensor element. Prior to sensing device development, the coupling of modes (COM) modeling was performed to device simulation. Using the typical lithography technology, the sensing device was developed at 433 MHz, and packaged with a permeable film. Using the experimental setup composed of a high-low temperature chamber, wireless transceiver module and sensing device, the response in time domain of the developed sensing device was characterized. The mass loading effect in icing process modulates the propagation of Love wave, resulting in the corresponding phase response shift. By wireless measurement, the phase change from water to ice was detected, and the measured results addressed the feasibility and effectiveness of the proposed wireless and passive Love wave ice sensor.","PeriodicalId":6759,"journal":{"name":"2019 IEEE International Ultrasonics Symposium (IUS)","volume":"11 1","pages":"2553-2556"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88732480","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

Image-guided Application and Monitoring of Transcranial Focused Ultrasound in Realistic Human Head Phantom 图像引导下经颅聚焦超声在真人头部幻影中的应用与监测

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8925708

P. O'Brien, Collin S. Smith, E. Ebbini

{"title":"Image-guided Application and Monitoring of Transcranial Focused Ultrasound in Realistic Human Head Phantom","authors":"P. O'Brien, Collin S. Smith, E. Ebbini","doi":"10.1109/ULTSYM.2019.8925708","DOIUrl":"https://doi.org/10.1109/ULTSYM.2019.8925708","url":null,"abstract":"Dual-mode ultrasound arrays (DMUAs) have been used for monitoring and delivery of transcranial focused ultrasound (tFUS) in small-animal models in vivo. Synthetic-aperture (SA) imaging can be used for stereotaxic guidance, while high frame rate imaging modes, such as single-transmit focus (STF) imaging, can provide feedback for thermal and mechanical closed-loop control of lesion formation and neuromodulation. The objective of this study is to demonstrate the feasibility of DMUA guidance and control of tFUS application in a realistic human head phantom. A DMUA was used to image through the temporal bone of the phantom in SA and STF modes. Results from the SA imaging mode demonstrates the ability to image fine targets such as vessels with aneurysms. Additionally, subaperture processing of SA data shows it is possible to reduce reverberation. Results from the STF imaging mode show the feasibility of speckle tracking using transranial echo data, both with and without subaperture processing. These results demonstrate the value of judicial design of subaperture beamforming for identifying tissue structure and improving speckle statistics for high fidelity thermography and elastography. Results from tFUS-monitoring experiments will be given.","PeriodicalId":6759,"journal":{"name":"2019 IEEE International Ultrasonics Symposium (IUS)","volume":"2 1","pages":"1898-1901"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89335713","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

Monitoring of compressive stress changes in concrete pillars using cross correlation 用互相关法监测混凝土柱压应力变化

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8926154

Agustin Spalvier, G. Cetrangolo, Lucas M. Martinho, A. Kubrusly, F. Blasina, N. Pérez

引用次数: 2

Perturbation Analysis of Nonlinearity in Radio Frequency Bulk Acoustic Wave Resonators Using Mass-Spring Model 基于质量-弹簧模型的射频体声波谐振器非线性扰动分析

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8926245

K. Hashimoto, Xinyi Li, J. Bao, Luyan Qiu, T. Omori

引用次数: 10

Axial Super-Resolution in Ultrasound Imaging 超声成像中的轴向超分辨率

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8926263

S. Shastri, S. Rudresh, R. Anand, S. Nagesh, Dibbyan Mazumder, A. Thittai, Chandra Sekhar Seelamantula

{"title":"Axial Super-Resolution in Ultrasound Imaging","authors":"S. Shastri, S. Rudresh, R. Anand, S. Nagesh, Dibbyan Mazumder, A. Thittai, Chandra Sekhar Seelamantula","doi":"10.1109/ULTSYM.2019.8926263","DOIUrl":"https://doi.org/10.1109/ULTSYM.2019.8926263","url":null,"abstract":"A fundamental challenge in non-destructive evaluation using ultrasound is to accurately estimate the thicknesses of different layers or cracks present in the object being probed. This inherently corresponds to localizing the point-sources of the reflections from the received signal. Conventional signal processing techniques cannot resolve reflectors whose spacing is below the axial resolution limit, which is of the order of the wavelength of the probing pulse. The objective of this paper is to demonstrate axial super-resolution capability using both simulated and experimental ultrasound data. We show that the ultrasound reflections could be modelled effectively as FRI signals, which can be sampled at sub-Nyquist rates. The FRI sampling method brings the reconstruction problem within a parametric estimation framework, for which efficient high-resolution spectral estimation techniques are available. We experimentally demonstrate that the proposed technique is able to resolve the thicknesses of layers of custom designed Agarose phantoms that are up to 2.25 times below the conventional resolution limit.","PeriodicalId":6759,"journal":{"name":"2019 IEEE International Ultrasonics Symposium (IUS)","volume":"46 1","pages":"639-642"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90614363","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

Data-Driven Sensor Array Subsampling for Plane-Wave Ultrasound Imaging 数据驱动的传感器阵列子采样平面波超声成像

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8925560

H. Marzougui, Daler N. Rakhmatov

引用次数: 1

Optimization of Ferroelectret Transducers for Pulse-Echo Water Immersion Operation 用于脉冲回波水浸操作的铁驻极体换能器的优化

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8926178

Julio Quirce Aguilar, T. G. Gomez Alvarez-Arenas

{"title":"Optimization of Ferroelectret Transducers for Pulse-Echo Water Immersion Operation","authors":"Julio Quirce Aguilar, T. G. Gomez Alvarez-Arenas","doi":"10.1109/ULTSYM.2019.8926178","DOIUrl":"https://doi.org/10.1109/ULTSYM.2019.8926178","url":null,"abstract":"The adaptation and optimization of polypropylene ferroelectret (FE) films as the main piezoelectric element for water immersion ultrasonic transducers is studied. One of its main features is that they present a very wide band response so they can be an alternative for certain medical applications, especially those demanding intermediate frequencies and reduced size. The main problems of using this kind of materials are the poor sensitivity and the weak bonding of the metallization to the FE film that is easily degraded when entre in contact with water. The objective of this work is to optimize FE transducers for pulse-echo water immersion, while preserving the bandwidth, by: i) protecting the surface and ii) improving the impedance matching to the water.Metallization degradation produced by water has been quantified, then, main materials requirements to produce matching layers for this application are reviewed and potential materials to produce them proposed. A procedure to reinforce the metallization while preserving the electromechanical film response is proposed (based on Au sputtering) and first prototypes of transducers with a single matching layer are proposed, built and characterized.","PeriodicalId":6759,"journal":{"name":"2019 IEEE International Ultrasonics Symposium (IUS)","volume":"121 1","pages":"2604-2607"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85259714","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: 5

Design and Fabrication of Flexible and Transparent Piezoelectric Micromachined Ultrasonic Transducer Based on Mica Substrates 基于云母基板的柔性透明压电微机械超声换能器的设计与制造

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8925776

Wei Liu, Xiaoniu Li, Dawei Wu, Ting Yu

引用次数: 3

Nolinear Reconstruction for Liquid-liquid Two-phase Medium Ultrasonic Tomography 液-液两相介质超声层析成像的非线性重建

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8925691

Hao Liu, C. Tan, F. Dong

{"title":"Nolinear Reconstruction for Liquid-liquid Two-phase Medium Ultrasonic Tomography","authors":"Hao Liu, C. Tan, F. Dong","doi":"10.1109/ULTSYM.2019.8925691","DOIUrl":"https://doi.org/10.1109/ULTSYM.2019.8925691","url":null,"abstract":"Industrial Process Tomography possesses unique advantages in biphasic medium measurement and has received broad attention in the past decades. Aiming at the widely existed low contrast biphasic medium, this paper proposed a nonlinear Ultrasonic Transmission Tomography (UTT). Approach using continuous wave excitation. Considering the refraction effect at the biphasic interface, the reconstruction method with nonlinear forward problem and the improved Simultaneous Algebraic Reconstruction Technique (SART) is proposed with high reconstruction accuracy and reconstruction speed. The performance of the reconstruction is quantitatively compared with the state-of-art reconstruction algorithms, where the proposed method can reconstruct inclusions with their number, size and position clearly identified. Quantitatively, the average Relative Error (RE) is 0.4835 using the proposed method, which is reduced by 49.34% and 40.57% compared with FBP and SART separately. Under parallel computation, the computing time of the proposed method reduced 16.56 times compared with the existing bent-ray tracing method. The proposed image reconstruction algorithm is proved to be an effective and improved approach to the liquid-liquid two-phase flow ultrasonic tomography.","PeriodicalId":6759,"journal":{"name":"2019 IEEE International Ultrasonics Symposium (IUS)","volume":"13 1","pages":"1878-1881"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82008799","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

Acoustic Tweezers with Electrical Controllability on Rotation of Trapped Particle 基于捕获粒子旋转的电控声镊子

2019 IEEE International Ultrasonics Symposium (IUS) Pub Date : 2019-10-01 DOI: 10.1109/ULTSYM.2019.8925781

Lurui Zhao, E. S. Kim

{"title":"Acoustic Tweezers with Electrical Controllability on Rotation of Trapped Particle","authors":"Lurui Zhao, E. S. Kim","doi":"10.1109/ULTSYM.2019.8925781","DOIUrl":"https://doi.org/10.1109/ULTSYM.2019.8925781","url":null,"abstract":"This paper describes an electrically controllable acoustic tweezers capable of holding and rotating mm-sized particles through varying the frequency of the electrical voltage applied to the tweezers. The tweezers is composed of a pair of vertically placed acoustic tweezers, in parallel and center aligned, so that the trapping zone of each of the tweezers set overlaps with each other’s. Each single transducer is built on a 2.03 mm thick lead zirconate titanate (PZT) substrate with 18 symmetric beamforming sectors (pie shaped when viewed from top) arranged for 3 focal lengths (17.0, 18.5 and 20.0 mm) defined by air-cavity acoustic lens. Acoustic waves generated from the pair of the two tweezers produce Bessel beam zone with acoustic energy well, where a particle gets trapped and held. Once a particle is captured, rotational manipulation is achieved by fine tuning the tweezers’ driving frequency, which impacts the trapping zone quite slightly, enabling gravity to provide an asymmetric force that rotates the trapped particle. Our experiments show that a trapping of mm-sized particle is achieved at 1.17 MHz driving frequency for both transducers, and tuning of the frequency by about 100 Hz generates rotation of the trapped particle. The on-demand rotational manipulation is shown to be effective in rotating mm-size polyethylene particles and 24 - 36 hours-post-fertilization zebrafish embryos that are 1.3 - 1.5 mg in weight.","PeriodicalId":6759,"journal":{"name":"2019 IEEE International Ultrasonics Symposium (IUS)","volume":"40 1","pages":"663-666"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77304529","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