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关键词： 传感器技术   初中物理   信息化教学  

摘要： 以"熔化和凝固"为例,基于传感器技术进行实验改进,结合电脑进行图像分析;利用平板实时上传图像,记录、保存实验过程;优化学生学习方式,促进学生深度学习,发展学生核心素养.

关键词： 氮化铝薄膜   MEMS传感器   高灵敏度   低频响应   力学敏感结构   弯曲振动模式   水听器   灵敏度仿真  

摘要： 为了解决水下声学传感器技术领域中一直存在的提高低频响应灵敏度方面的迫切需求,本文利用氮化铝新型氮化铝敏感材料与声传感器设计技术相结合进行了声学传感器设计技术研究。开展了基于MEMS微结构的弯曲振动声敏感模式、力敏特性与压电敏感特性耦合、电荷信号提取电极设计等相关技术验证研究,完成了氮化铝MEMS声传感器测试芯片的工艺与版图设计及加工与制作。通过样品测试分析,在典型检测电极上分别得到了0.61、1.12、1.64μV/Pa的单电极声压灵敏度和平坦的低频频率响应曲线,验证了基于ALN薄膜、采用弯曲振动模式的MEMS声敏感芯片设计可以实现低频高灵敏度声传感器。

关键词： 图像传感器   传感器技术   堆栈   专业相机   专业级   摄影师  

摘要： 汇聚全球影像新闻佳能EOS R3正在开发中佳能发布了另一台相机的研发消息,这台相机将会是一台使用堆栈式传感器技术的专业级体育/新闻相机。佳能正在研发的EOS R3是一台专为体育以及新闻摄影师准备的专业相机,最高连拍速率可达30fps,使用了背照式堆栈图像传感器技术,拥有“次时代级别的双像素CMOS对焦技术”以及眼控对焦功能。

关键词： 传感器技术   机电一体化系统   应用  

摘要： 随着社会主义市场经济不断发展,信息技术和科学技术渗透到日常生活中,现如今各个行业都在引进先进的科学技术助推自身发展。机电一体化系统是通过信息技术完成施工操作,提升施工效率。将传感器技术有效应用在机电一体化系统之中,实现自动化运行,提高生产效率,全面优化机电一体化系统。本文对传感器技术在机电一体化系统中的应用进行分析。

关键词： single-board computers   microcontroller boards   architectures   integrating sensors technologies   indoor comfort monitoring   IoT applications  

摘要： Development boards, Single-Board Computers (SBCs) and Single-Board Microcontrollers (SBMs) integrating sensors and communication technologies have become a very popular and interesting solution in the last decade. They are of interest for their simplicity, versatility, adaptability, ease of use and prototyping, which allow them to serve as a starting point for projects and as reference for all kinds of designs. In this sense, there are innumerable applications integrating sensors and communication technologies where they are increasingly used, including robotics, domotics, testing and measurement, Do-It-Yourself (DIY) projects, Internet of Things (IoT) devices in the home or workplace and science, technology, engineering, educational and also academic world for STEAM (Science, Technology, Engineering and Mathematics) skills. The interest in single-board architectures and their applications have caused that all electronics manufacturers currently develop low-cost single board platform solutions. In this paper we realized an analysis of the most important topics related with single-board architectures integrating sensors. We analyze the most popular platforms based on characteristics as: cost, processing capacity, integrated processing technology and open-source license, as well as power consumption (mA@V), reliability (%), programming flexibility, support availability and electronics utilities. For evaluation, an experimental framework has been designed and implemented with six sensors (temperature, humidity, CO2/TVOC, pressure, ambient light and CO) and different data storage and monitoring options: locally on a mu SD (Micro Secure Digital), on a Cloud Server, on a Web Server or on a Mobile Application.

摘要： [...]GNSS is not always a reliable source of position estimates due to multipath propagation and signal blockage. [...]in foreseen IoT applications, the use of GNSS chips integrated into all devices might have a negative impact on their battery life. [...]alternative solutions for position estimation should be investigated and implemented in IoT applications. To support this effort, the authors of [7] propose a novel MultiWeight Zero Cross-Correlation (MW-ZCC) coding scheme with a low cross-correlation function for Wireless Optical Networks Based Optical Code Division Multiple Access (WON-OCDMA) system. The system combines the range information provided as point clouds by an array of mm-wave radars with the highly accurate positioning data provided by Global Navigation Satellite System-Real-Time Kinematic (GNSS-RTK) modules, forming a sensor-fusion system that enables to merge the point clouds taken from different arbitrary positions. [...]communication and control components have been employed to send and receive data from the sensors and manage the system status.

关键词： Metal-organic framework   Chemical sensor   High surface area   Fiber optic sensor   Hydrogen gas  

摘要： Recent research demonstrates that promising gas sensing materials are called metal-organic frameworks (MOFs) and their products due to their tunable form, high surface area, highly porous structure, and physisorption towards gases with relatively low temperature. In this report, recent developments in transition-metal (Zn, Mn, Cu)-based MOFs and their derivatives were synthesized as sensing materials. The sensors samples were analyzed by XRD, SEM, TEM, BET and XPS to know their textural, structural and electronic state. XRD results suggest that Zn-MOF showed hexagonal crystalline structure, while Mn-MOF and Cu-MOF showed monoclinic crystalline structure. The SEM images of Zn-MOF, Mn-MOF, and Cu-MOF samples and the relative morphologies are nanotubes, nanosheets, and nanoparticles, respectively. Further, the TEM image of Zn-MOF clearly shows that nanotubes with length around 200-300 nm and diameter of 10-20 nm. Fiber optic clad modified sensors were fabricated and tested gas sensing properties towards H2 gas with various concentrations (0-1000 ppm). Among the three sensing materials, Zn doped MOFs sensor showed outstanding selectivity with high sensitivity (115 counts/kpa) towards H2 gas. Moreover, it has shown high response (20 s) and recovery time (27 s), and long-term stability. The designed sensors may be required to apply to the production of an outstanding sensor for H2 for commercial uses.

关键词： 传感器   高等职业教育   教材  

ISBN: (纸本)9787568922494

摘要： 本书以传感器的应用技术为主线安排内容。全书共8章,第1章介绍传感器的基础知识、基本概念,第2章至第8章分别介绍应变式传感器、电感式传感器、电容式传感器、压电式传感器、霍尔式传感器、光电式传感器和新型传感器的工作原理、特性、测量电路及典型应用。

关键词： 传感器技术   超星学习通   信息化教学  

摘要： 在高职教育阶段,以培养学生实用技能为主,为我国制造业培养出了一大批优秀人才,但受限于教育资源、人才储备等因素,高职教育教学质量始终没有得到有效提升,而信息技术的应用则可以补足高职专业教学上的缺陷,促进高职教育的高质量发展,从而提升学生的就业竞争力。基于超星学习通对"传感器技术及其应用"课程的信息化教学改革进行了深入研究,找出课程教学存在的问题,提出相应的措施并付之实践。