Micromachines最新文献_第4页

Image-Based Auto-Focus Microscope System with Visual Servo Control for Micro-Stereolithography. 基于图像的自动聚焦显微系统，带用于微立体光刻的视觉伺服控制。

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-11 DOI: 10.3390/mi15101250

Yijie Liu, Xuexuan Li, Pengfei Jiang, Ziyue Wang, Jichang Guo, Chao Luo, Yaozhong Wei, Zhiliang Chen, Chang Liu, Wang Ren, Wei Zhang, Juntian Qu, Zhen Zhang

{"title":"Image-Based Auto-Focus Microscope System with Visual Servo Control for Micro-Stereolithography.","authors":"Yijie Liu, Xuexuan Li, Pengfei Jiang, Ziyue Wang, Jichang Guo, Chao Luo, Yaozhong Wei, Zhiliang Chen, Chang Liu, Wang Ren, Wei Zhang, Juntian Qu, Zhen Zhang","doi":"10.3390/mi15101250","DOIUrl":"https://doi.org/10.3390/mi15101250","url":null,"abstract":"Micro-stereolithography (μSL) is an advanced additive manufacturing technique that enables the fabrication of highly precise microstructures with fine feature resolution. One of the primary challenges in μSL is achieving and maintaining precise focus throughout the fabrication process. For the successful application of μSL, it is essential to maintain the sample surface within a focal depth of several microns. Despite the growing interest in auto-focus devices, limited attention has been directed towards auto-focus systems in image-based auto-focus microscope systems for precision μSL. To address this challenge, we propose an image-based auto-focus microscope system incorporating visual servo control. In the optical design, a transflective beam splitter is employed, allowing the laser beam to pass through for fabrication while reflecting the focused beam on the sample surface to the microscope and camera. Utilizing captured spot images and the Foucault knife-edge test, a deep learning-based laser spot image processing algorithm is developed to determine the focus position based on spot size and the number of spot pixels on both sides. Experimental results demonstrate that the proposed auto-focus system effectively determines the relative position of the focal point using the laser spot image and achieves auto-focusing through visual servo control.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"15 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11509336/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing Bipolar Reset Waveform to Improve Grayscale Stability in Active Matrix Electrowetting Displays. 优化双极复位波形，提高有源矩阵电致发光显示器的灰度稳定性。

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-11 DOI: 10.3390/mi15101247

Taiyuan Zhang, Li Wang, Linwei Liu, Wei Li, Shipeng Wu, Jianyang Guo, Guofu Zhou

{"title":"Optimizing Bipolar Reset Waveform to Improve Grayscale Stability in Active Matrix Electrowetting Displays.","authors":"Taiyuan Zhang, Li Wang, Linwei Liu, Wei Li, Shipeng Wu, Jianyang Guo, Guofu Zhou","doi":"10.3390/mi15101247","DOIUrl":"https://doi.org/10.3390/mi15101247","url":null,"abstract":"The electrowetting display (EWD) device is a new type of electrowetting-on-dielectric (EWOD) equipment that can achieve a paper-like display effect under the control of an electric field. In this microfluidic system, the stability of grayscale can be affected by various factors, such as the physicochemical properties of the materials, the device structure, and electric field distribution. To improve the grayscale stability of active matrix electrowetting displays (AM-EWDs), the impact of different polarities of driving voltage on oil backflow was investigated in this study. Based on the driving principles of AM-EWD, an optimized inter-frame bipolar reset driving waveform was designed to overcome oil backflow. The proposed driving waveform maintained the stability of the oil state by periodically and rapidly releasing trapped charges in the dielectric layer through a reverse driving voltage. Additionally, the effect of feed-through voltage on pixel driving voltage was eliminated by compensating for the driving voltage on a common electrode. Finally, the performance of the designed driving waveform was evaluated with a 6-inch AM-EWD driving platform. Compared to the conventional unipolar reset driving waveform, the backflow speed decreased by 2.70 a.u./s. The standard deviation of the display luminance was also reduced by 11.24 a.u. Experimental results indicated that both the oil backflow speed and the fluctuation range of luminance were effectively suppressed by the proposed driving waveform.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"15 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11509134/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Compact V-Band Temperature Compensation Low-Noise Amplifier in a 130 nm SiGe BiCMOS Process. 采用 130 纳米 SiGe BiCMOS 工艺的紧凑型 V 波段温度补偿低噪声放大器。

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-11 DOI: 10.3390/mi15101248

Yi Shen, Jiang Luo, Wei Zhao, Jun-Yan Dai, Qiang Cheng

引用次数: 0

Editorial for the Special Issue on Nanomaterials for Micro/Nanodevices. 为 "用于微型/纳米器件的纳米材料 "特刊撰写编辑文章。

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-10 DOI: 10.3390/mi15101245

Amir Hussain Idrisi

引用次数: 0

A Lightweight SPI-Flash Controller Based on AMBA AHB-Lite Bus. 基于 AMBA AHB-Lite 总线的轻量级 SPI 闪存控制器

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-10 DOI: 10.3390/mi15101246

Bingzheng Li, Weike Wang, Hanbing Chu, Zixuan Liu, Wei Wang

{"title":"A Lightweight SPI-Flash Controller Based on AMBA AHB-Lite Bus.","authors":"Bingzheng Li, Weike Wang, Hanbing Chu, Zixuan Liu, Wei Wang","doi":"10.3390/mi15101246","DOIUrl":"https://doi.org/10.3390/mi15101246","url":null,"abstract":"The utilization of SPI-Flash in embedded systems is widespread, primarily serving as program storage during the boot process. As a result, the boot process is influenced to some extent by the SPI-Flash controller. This paper presents a lightweight SPI-Flash controller that simplifies the boot process design by establishing a direct connection between the SPI-Flash and AHB-lite bus interface, enabling rapid program execution in RAM instead of directly from the SPI-Flash. Additionally, the controller can function as a bare-metal program downloader for testing the boot process functionality during FPGA-based SoC (system-on-chip) prototype verification. The system-level simulation and FPGA verification results demonstrate that the proposed SPI-Flash controller successfully achieves its intended functional impact in operations to target the Micron N25Q256A SPI-Flash chip, boot process design, and bare-metal program download. The synthesis results under the SMIC 180 nm 1P8M technology process indicate that this SPI-Flash controller exhibits remarkable performance, power consumption, and area utilization. The source code of the proposed lightweight SPI-Flash controller has been uploaded to GitHub as an open-source project.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"15 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11509855/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid Construction of Liquid-like Surfaces via Single-Cycle Polymer Brush Grafting for Enhanced Antifouling in Microfluidic Systems. 通过单循环聚合物刷接枝快速构建类液表面，增强微流体系统的防污能力

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-09 DOI: 10.3390/mi15101241

Feng Wu, Jing Xu, Yuanyuan Liu, Hua Sun, Lishang Zhang, Yixuan Liu, Weiwei Wang, Fali Chong, Dan Zou, Shuli Wang

{"title":"Rapid Construction of Liquid-like Surfaces via Single-Cycle Polymer Brush Grafting for Enhanced Antifouling in Microfluidic Systems.","authors":"Feng Wu, Jing Xu, Yuanyuan Liu, Hua Sun, Lishang Zhang, Yixuan Liu, Weiwei Wang, Fali Chong, Dan Zou, Shuli Wang","doi":"10.3390/mi15101241","DOIUrl":"https://doi.org/10.3390/mi15101241","url":null,"abstract":"Liquid-like surfaces have demonstrated immense potential in their ability to resist cell adhesion, a critical requirement for numerous applications across various domains. However, the conventional methodologies for preparing liquid-like surfaces often entail a complex multi-step polymer brush modification process, which is not only time-consuming but also presents significant challenges. In this work, we developed a single-cycle polymer brush modification strategy to build liquid-like surfaces by leveraging high-molecular-weight bis(3-aminopropyl)-terminated polydimethylsiloxane, which significantly simplifies the preparation process. The resultant liquid-like surface is endowed with exceptional slipperiness, effectively inhibiting bacterial colonization and diminishing the adherence of platelets. Moreover, it offers promising implications for reducing the dependency on anticoagulants in microfluidic systems constructed from PDMS, all while sustaining its antithrombotic attributes.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"15 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11509447/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ceramics for Microelectromechanical Systems Applications: A Review. 微机电系统应用陶瓷：综述。

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-09 DOI: 10.3390/mi15101244

Ehsan Fallah Nia, Ammar Kouki

{"title":"Ceramics for Microelectromechanical Systems Applications: A Review.","authors":"Ehsan Fallah Nia, Ammar Kouki","doi":"10.3390/mi15101244","DOIUrl":"https://doi.org/10.3390/mi15101244","url":null,"abstract":"A comprehensive review of the application of different ceramics for MEMS devices is presented. Main ceramics materials used for MEMS systems and devices including alumina, zirconia, aluminum Nitride, Silicon Nitride, and LTCC are introduced. Conventional and new methods of fabricating each material are explained based on the literature, along with the advantages of the new approaches, mainly additive manufacturing, i.e., 3D-printing technologies. Various manufacturing processes with relevant sub-techniques are detailed and the ones that are more suitable to have an application for MEMS devices are highlighted with their properties. In the main body of this paper, each material with its application for MEMS is categorized and explained. The majority of works are within three main classifications, including the following: (i) using ceramics as a substrate for MEMS devices to be mounted or fabricated on top of it; (ii) ceramics are a part of the materials used for an MEMS device or a monolithic fabrication of MEMS and ceramics; and finally, (iii) using ceramics as packaging solution for MEMS devices. We elaborate on how ceramics may be superior substitutes over other materials when delicate MEMS-based systems need to be assembled or packaged by a simpler fabrication process as well as their advantages when they need to operate in harsh environments.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"15 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11509724/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design, Testing, and Experimental Validation of a Rotary Vibration-Assisted Polishing Device (RVAPD) for Enhanced Machining and Surface Quality. 设计、测试和实验验证旋转振动辅助抛光装置 (RVAPD)，以提高加工和表面质量。

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-09 DOI: 10.3390/mi15101242

Silin Liu, Yan Gu, Jieqiong Lin, Zisu Xu, Tianyu Gao, Xinyang Liu, Xiaoming Zhang, Bingjin Yu

引用次数: 0

Physical Sensors Based on Lamb Wave Resonators. 基于羊羔波谐振器的物理传感器

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-09 DOI: 10.3390/mi15101243

Zixia Yu, Yongqing Yue, Zhaozhao Liang, Xiaolong Zhao, Fangpei Li, Wenbo Peng, Quanzhe Zhu, Yongning He

{"title":"Physical Sensors Based on Lamb Wave Resonators.","authors":"Zixia Yu, Yongqing Yue, Zhaozhao Liang, Xiaolong Zhao, Fangpei Li, Wenbo Peng, Quanzhe Zhu, Yongning He","doi":"10.3390/mi15101243","DOIUrl":"https://doi.org/10.3390/mi15101243","url":null,"abstract":"A Lamb wave is a guided wave that propagates within plate-like structures, with its vibration mode resulting from the coupling of a longitudinal wave and a shear vertical wave, which can be applied in sensors, filters, and frequency control devices. The working principle of Lamb wave sensors relies on the excitation and propagation of this guided wave within piezoelectric material. Lamb wave sensors exhibit significant advantages in various sensing applications due to their unique wave characteristics and design flexibility. Compared to traditional surface acoustic wave (SAW) and bulk acoustic wave (BAW) sensors, Lamb wave sensors can not only achieve higher frequencies and quality factors in smaller dimensions but also exhibit superior integration and multifunctionality. In this paper, we briefly introduce Lamb wave sensors, summarizing methods for enhancing their sensitivity through optimizing electrode configurations and adjusting piezoelectric thin plate structures. Furthermore, this paper systematically explores the development of Lamb wave sensors in various sensing applications and provides new insights into their future development.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"15 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11509218/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Automated Fabrication of Smart Strain Sensing Threads. 智能应变传感线的自动制造。

IF 3 3区工程技术

Micromachines Pub Date : 2024-10-08 DOI: 10.3390/mi15101239

Ege Ozgul, Wenxin Zeng, Sameer Sonkusale

引用次数: 0