IEEE open journal of ultrasonics, ferroelectrics, and frequency control最新文献_第9页

Data-Over-Sound With PMUTs pmut的声音数据传输

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-08-05 DOI: 10.1109/OJUFFC.2022.3197126

Harshvardhan Gupta;Bibhas Nayak;Anuj Ashok;Rudra Pratap

引用次数: 1

Erratum to “Characterization of Multilayer Piezoelectric Stacks Down to 100K” [2022 65-82] “多层压电堆的表征降至100K”的勘误[2022 65-82]

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-07-08 DOI: 10.1109/OJUFFC.2022.3184056

Stewart Sherrit;Mircea Badescu;John B. Steeves;William E. Krieger;Clifford A. Klein;Otto R. Polanco;Carey Louise Weisberg;David Van Buren;Joseph Sauvageau;Keith Coste

引用次数: 0

Laser Micromachined Flexible Ultrasound Line Array and Subplanar Multimodal Imaging Applications 激光微加工柔性超声线阵列及亚平面多模态成像应用

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-07-08 DOI: 10.1109/OJUFFC.2022.3188746

Jianzhong Chen;Wei Liu;Dawei Wu;Hu Ye

{"title":"Laser Micromachined Flexible Ultrasound Line Array and Subplanar Multimodal Imaging Applications","authors":"Jianzhong Chen;Wei Liu;Dawei Wu;Hu Ye","doi":"10.1109/OJUFFC.2022.3188746","DOIUrl":"10.1109/OJUFFC.2022.3188746","url":null,"abstract":"Flexible ultrasound array with phased array configurations have individually controllable array element emission and reception acoustic properties, however array conventional processes and array design are too complex. It is necessary to explore rapid creation methods and potential ultrasound applications for flexible arrays. In this paper, we provide a method for rapid fabrication of flexible transducers based on laser micromachining and verify the performance of the line array by multi-mode positioning imaging under curved surfaces. The proposed single-layered and double-sided conductive stretchable electrode configuration eliminated the blockage of acoustic waves,and ’island bridge’ structures are compatible with array flexibility and array excitation for row addressing.The mechanical, acoustic and electrical interconnections of the array are verified.Based on the Verasonics system, the ultrasonic line array scans multiple steel column targets in multiple modalities under curved surfaces for imaging and localization.The results show that the ultrasonic line array can obtain clear visual localization images in A-scan, B-scan and E-scan poses.In addition, the artifacts in the images can be effectively suppressed by adjusting the depth of focus of E-scan and optimizing the sparse line array structure. It is verified that laser micromachining for rapid creation of flexible ultrasonic line array has potential applications in the field of localization imaging.","PeriodicalId":73301,"journal":{"name":"IEEE open journal of ultrasonics, ferroelectrics, and frequency control","volume":"2 ","pages":"131-139"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9819962","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62907032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial Coherence Adaptive Clutter Filtering in Color Flow Imaging—Part II: Phantom and In Vivo Experiments 彩色流成像中的空间相干自适应杂波滤波——第二部分:幻像和体内实验

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-06-21 DOI: 10.1109/OJUFFC.2022.3184909

Will Long;David Bradway;Rifat Ahmed;James Long;Gregg E. Trahey

{"title":"Spatial Coherence Adaptive Clutter Filtering in Color Flow Imaging—Part II: Phantom and In Vivo Experiments","authors":"Will Long;David Bradway;Rifat Ahmed;James Long;Gregg E. Trahey","doi":"10.1109/OJUFFC.2022.3184909","DOIUrl":"10.1109/OJUFFC.2022.3184909","url":null,"abstract":"Conventional color flow processing is associated with a high degree of operator dependence, often requiring the careful tuning of clutter filters and priority encoding to optimize the display and accuracy of color flow images. In a companion paper, we introduced a novel framework to adapt color flow processing based on local measurements of backscatter spatial coherence. Through simulation studies, the adaptive selection of clutter filters using coherence image quality characterization was demonstrated as a means to dynamically suppress weakly-coherent clutter while preserving coherent flow signal in order to reduce velocity estimation bias. In this study, we extend previous work to evaluate the application of coherence-adaptive clutter filtering (CACF) on experimental data acquired from both phantom and \u0000<italic>in vivo\u0000 liver and fetal vessels. In phantom experiments with clutter-generating tissue, CACF was shown to increase the dynamic range of velocity estimates and decrease bias and artifact from flash and thermal noise relative to conventional color flow processing. Under \u0000<italic>in vivo\u0000 conditions, such properties allowed for the direct visualization of vessels that would have otherwise required fine-tuning of filter cutoff and priority thresholds with conventional processing. These advantages are presented alongside various failure modes identified in CACF as well as discussions of solutions to mitigate such limitations.","PeriodicalId":73301,"journal":{"name":"IEEE open journal of ultrasonics, ferroelectrics, and frequency control","volume":"2 ","pages":"119-130"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9881236/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10592053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial Coherence Adaptive Clutter Filtering in Color Flow Imaging—Part I: Simulation Studies 彩色流成像中的空间相干自适应杂波滤波——第一部分:仿真研究

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-06-21 DOI: 10.1109/OJUFFC.2022.3184914

Will Long;David Bradway;Rifat Ahmed;James Long;Gregg E. Trahey

{"title":"Spatial Coherence Adaptive Clutter Filtering in Color Flow Imaging—Part I: Simulation Studies","authors":"Will Long;David Bradway;Rifat Ahmed;James Long;Gregg E. Trahey","doi":"10.1109/OJUFFC.2022.3184914","DOIUrl":"10.1109/OJUFFC.2022.3184914","url":null,"abstract":"The appropriate selection of a clutter filter is critical for ensuring the accuracy of velocity estimates in ultrasound color flow imaging. Given the complex spatio-temporal dynamics of flow signal and clutter, however, the manual selection of filters can be a significant challenge, increasing the risk for bias and variance introduced by the removal of flow signal and/or poor clutter suppression. We propose a novel framework to adaptively select clutter filter settings based on color flow image quality feedback derived from the spatial coherence of ultrasonic backscatter. This framework seeks to relax assumptions of clutter magnitude and velocity that are traditionally required in existing adaptive filtering methods to generalize clutter filtering to a wider range of clinically-relevant color flow imaging conditions. In this study, the relationship between color flow velocity estimation error and the spatial coherence of clutter filtered channel signals was investigated in Field II simulations for a wide range of flow and clutter conditions. This relationship was leveraged in a basic implementation of coherence-adaptive clutter filtering (CACF) designed to dynamically adapt clutter filters at each imaging pixel and frame based on local measurements of spatial coherence. In simulation studies with known scatterer and clutter motion, CACF was demonstrated to reduce velocity estimation bias while maintaining variance on par with conventional filtering.","PeriodicalId":73301,"journal":{"name":"IEEE open journal of ultrasonics, ferroelectrics, and frequency control","volume":"2 ","pages":"106-118"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9881314/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10589914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Design for Acoustic Wave Multiplexers With Single Inductor Matching Network Using Frequency Response Fitting Method 基于频率响应拟合方法的单电感匹配网络声波复用器设计

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-06-13 DOI: 10.1109/OJUFFC.2022.3182321

Shu-Yuan Tseng;Min-Yuan Yang;Chin-Chung Hsiao;Yung-Yu Chen;Ruey-Beei Wu

{"title":"Design for Acoustic Wave Multiplexers With Single Inductor Matching Network Using Frequency Response Fitting Method","authors":"Shu-Yuan Tseng;Min-Yuan Yang;Chin-Chung Hsiao;Yung-Yu Chen;Ruey-Beei Wu","doi":"10.1109/OJUFFC.2022.3182321","DOIUrl":"10.1109/OJUFFC.2022.3182321","url":null,"abstract":"This study proposes a new acoustic wave (AW) multiplexer topology with a single-inductor matching network for carrier aggregation (CA) in the fifth-generation communication systems. To satisfy the desired specifications of all the multiplexer ports based on ladder-type filters, the frequency response fitting method (FRFM) is proposed to obtain the BVD parameters for each AW resonator. Using the proposed computer-aided method, a parameter solution can be obtained under practical design limitations, such as the selection of the piezoelectric material, properties of the manufacturing process, and used circuit topology. Furthermore, a measurement of a band 1 and 3 surface acoustic wave (SAW) multiplexer is set up to confirm the feasibility of the proposed FRFM. The designed SAW multiplexer based on the lithium tantalate with Euler angle (0, −38, 0), 42°YX-LiTaO\u00003\u0000, is arranged. The designed quadplexer achieves high selectively with a return loss (RL), stopband reflection, and isolation better than −12 dB, −43 dB, and −50 dB, respectively, in a \u0000<inline-formula> <tex-math>$2.15times2.65$ </tex-math></inline-formula>\u0000 mm\u00002\u0000 occupation. The measurement results confirm the feasibility of the multiplexer topology and the proposed FRFM. The approach is also extended to a quadplexer design with band 4 and 25 and a hexaplexer design with band 1, 3, and 7 for CA applications, demonstrating its flexibility and simplicity.","PeriodicalId":73301,"journal":{"name":"IEEE open journal of ultrasonics, ferroelectrics, and frequency control","volume":"2 ","pages":"140-151"},"PeriodicalIF":0.0,"publicationDate":"2022-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9794779","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62907340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Characterization of Multilayer Piezoelectric Stacks Down to 100K 100K以下多层压电堆的特性研究

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-03-11 DOI: 10.1109/OJUFFC.2022.3173919

Stewart Sherrit;Mircea Badescu;John B. Steeves;William E. Krieger;Clifford A. Klein;Otto R. Polanco;Carey Louise Weisberg;David Van Buren;Joseph Sauvageau;Keith Coste

{"title":"Characterization of Multilayer Piezoelectric Stacks Down to 100K","authors":"Stewart Sherrit;Mircea Badescu;John B. Steeves;William E. Krieger;Clifford A. Klein;Otto R. Polanco;Carey Louise Weisberg;David Van Buren;Joseph Sauvageau;Keith Coste","doi":"10.1109/OJUFFC.2022.3173919","DOIUrl":"https://doi.org/10.1109/OJUFFC.2022.3173919","url":null,"abstract":"A variety of applications require precision control at cryogenic temperatures. The next-generation of telescopes are looking to increase apertures in space telescopes and observations in the mid through far infrared regions enabling new science ranging from exoplanet characterization to precision astronomical observations to further refine astrophysics models. Concepts include segmented telescopes which are capable of observations in UV through IR bands, thus driving the need for UV surface performance at cryogenic temperatures. These telescope’s segments will require actuators for controlled surface displacements capable of operation at cryogenic temperatures (\u0000<inline-formula> <tex-math>$le 150text{K}$ </tex-math></inline-formula>\u0000). The work reported in this paper is directed at understanding piezoelectric stack actuator operation down to cryogenic temperatures (100 K) which will provide actuator designers the needed information to model and predict performance. The data reported down to 100 K includes; resonance data, displacement voltage (S vs E) and capacitor voltage (D vs E) curves, stiffness, hysteresis, blocking force, DC resistance measurements, thermal strains and the coefficients of thermal expansion as a function of the electrical boundary conditions. Open-loop control drive strategies and errors are also reported. We apply this data to a surface parallel actuator mirror design.","PeriodicalId":73301,"journal":{"name":"IEEE open journal of ultrasonics, ferroelectrics, and frequency control","volume":"2 ","pages":"65-82"},"PeriodicalIF":0.0,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9292640/9674185/09772685.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49907934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Improved Lumped Element Model for Circular-Shape pMUTs 一种改进的圆形pMUTs集总元模型

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-01-01 DOI: 10.1109/OJUFFC.2022.3178972

Sedat Pala;Liwei Lin

引用次数: 4

Lumped-Parameter Equivalent Circuit Modeling of CMUT Array Elements CMUT阵列元件集总参数等效电路建模

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-01-01 DOI: 10.1109/OJUFFC.2021.3134938

Tony Merrien;Audren Boulmé;Dominique Certon

{"title":"Lumped-Parameter Equivalent Circuit Modeling of CMUT Array Elements","authors":"Tony Merrien;Audren Boulmé;Dominique Certon","doi":"10.1109/OJUFFC.2021.3134938","DOIUrl":"https://doi.org/10.1109/OJUFFC.2021.3134938","url":null,"abstract":"Design and modeling are key steps in the value chain of Capacitive Micromachined Ultrasonic Transducer (CMUT) arrays. Although CMUT array element models are very powerful, most of them are still limited in their use as tools for electronic design assistance. The electroacoustic equivalent circuits developed are mainly based on a distributed-element approach while lumped-parameter electrical circuits are better suited for electronic software design tools interoperations. To meet this need, the present study aims to implement an electroacoustic equivalent scheme of a full array element, based on a two-port network representation made of lumped-parameters. After an extensive bibliographical review of CMUT models, the new model is set-up from a fully distributed approach using Foldy’s electroacoustic definitions at the element level. Transmit and receive modes are implemented using scalar equations given by the lumped parameters. Moreover, based on a reciprocity analysis, the performance of the complete measurement chain in emission and reception will be defined using the relevant transfer functions. Finally, to help one design CMUT array elements for a given application, a method based on the computation of membranes thickness-size master curves is proposed. The two-port network representation of a full CMUT-based array element allowed by the new lumped-parameter modeling opens a wide range of possibilities regarding array design, electronic integration, operations with acoustic propagation simulation tools and more.","PeriodicalId":73301,"journal":{"name":"IEEE open journal of ultrasonics, ferroelectrics, and frequency control","volume":"2 ","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9292640/9674185/09656816.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49907685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Retrieving Pulsatility in Ultrasound Localization Microscopy 超声定位显微镜脉冲性检索

IEEE open journal of ultrasonics, ferroelectrics, and frequency control Pub Date : 2022-01-01 DOI: 10.1109/OJUFFC.2022.3221354

Myrthe Wiersma;Baptiste Heiles;Dylan Kalisvaart;David Maresca;Carlas S. Smith

{"title":"Retrieving Pulsatility in Ultrasound Localization Microscopy","authors":"Myrthe Wiersma;Baptiste Heiles;Dylan Kalisvaart;David Maresca;Carlas S. Smith","doi":"10.1109/OJUFFC.2022.3221354","DOIUrl":"https://doi.org/10.1109/OJUFFC.2022.3221354","url":null,"abstract":"Ultrasound localization microscopy (ULM) is a vascular imaging method that provides a 10-fold improvement in resolution compared to ultrasound Doppler imaging. Because typical ULM acquisitions accumulate large numbers of synthetic microbubble (MB) trajectories over hundreds of cardiac cycles, transient hemodynamic variations such as pulsatility get averaged out. Here we introduce two independent processing methods to retrieve pulsatile flow characteristics from MB trajectories sampled at kilohertz frame rates and demonstrate their potential on a simulated dataset. The first approach follows a Lagrangian description of the flow. We filter the MB trajectories to eliminate ULM localization grid artifacts and successfully recover the pulsatility fraction <inline-formula> <tex-math notation=\"LaTeX\">$P_{mathrm {f}}$ </tex-math></inline-formula> with a root mean square error (RMSE) of 3.3%. Our second approach follows a Eulerian description of the flow. It relies on the accumulation of MB velocity estimates as observed from a stationary observer. We show that pulsatile flow gives rise to a bimodal velocity distribution with peaks indicating the maximum and minimum velocities of the cardiac cycle. In this second method, we recovered the pulsatility fraction <inline-formula> <tex-math notation=\"LaTeX\">$P_{mathrm {f}}$ </tex-math></inline-formula> by measuring the location of these distribution peaks with a RMSE of 5.2%. We evaluated the impact of the MB localization precision <inline-formula> <tex-math notation=\"LaTeX\">$sigma $ </tex-math></inline-formula> on our ability to retrieve the bimodal signature of a pulsatile flow. Together, our results demonstrate that pulsatility can be retrieved from ULM acquisitions at kilohertz frame rate and that the estimation of the pulsatility fraction improves with localization precision.","PeriodicalId":73301,"journal":{"name":"IEEE open journal of ultrasonics, ferroelectrics, and frequency control","volume":"2 ","pages":"283-298"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9292640/9674185/09954170.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49907681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3