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Development of an Energy-Efficient and Highly Sensitive Thermal Microsensor for Measuring Flow Rates of Fluids 开发用于测量流体流速的高能效、高灵敏度热微型传感器
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-04-01 DOI: 10.1109/MIM.2024.10473014
D. F. Valencia-Grisales, Claudia Reyes-Betanzo
A calorimetric-based thermal sensor is precisely designed to measure volumetric flow rates in water, air, and nitrogen. Extensive simulations of the sensor's performance are conducted using COMSOL Multi-physics® software. In order to validate the simulation results, a comprehensive comparative analysis is carried out, utilizing the well-established one-dimensional model proposed by Nguyen and Dötzel, The sensor's construction incorporates high-quality materials such as titanium, phosphorus-doped amorphous hydrogenated silicon carbide (P-doped a-SiC:H), aluminum, and borosilicate glass substrates, ensuring robustness and reliability. The measurement range investigated spans from the flow rates of $0 mumathrm{l}/text{min}$ to $45 mumathrm{l}/text{min}$ for water, while for air and nitrogen, a broader range of 0 ml/min to 187 ml/min is considered. The evaluation of results showcases a low power consumption of approximately 7.6 mW, underlining the sensor's energy efficiency. Furthermore, the sensor exhibits remarkable sensitivities, with values reaching 54.89 mV/(mm/s)/mW for water flow and 8.9 mV/(m/s)/mW for gases, underscoring its exceptional performance across various applications.
基于热量计的热传感器设计精确,可测量水、空气和氮气中的体积流量。使用 COMSOL Multi-physics® 软件对传感器的性能进行了大量模拟。为了验证模拟结果,利用 Nguyen 和 Dötzel 提出的成熟的一维模型进行了全面的比较分析。传感器的结构采用了高质量的材料,如钛、掺磷非晶氢化碳化硅(P-掺杂 a-SiC:H)、铝和硼硅玻璃基板,确保了坚固性和可靠性。所研究的测量范围包括:水的流速从 0 (毫升/分钟)到 45 (毫升/分钟);空气和氮气的流速从 0 毫升/分钟到 187 毫升/分钟。结果评估显示,该传感器的功耗较低,约为 7.6 mW,突出了其能源效率。此外,该传感器还具有出色的灵敏度,水流灵敏度达到 54.89 mV/(mm/s)/mW,气体灵敏度达到 8.9 mV/(m/s)/mW,在各种应用中都表现出卓越的性能。
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引用次数: 0
An Improved Method to Measure, Characterize, and Model Microstrip Antennas in the W Band 测量、鉴定和模拟 W 波段微带天线的改进方法
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-04-01 DOI: 10.1109/MIM.2024.10472981
R. Murphy‐Arteaga, Edgar Colín-Beltrán, María T. Serrano-Serrano, Chudy Nwachukwu, Svetlana Carsof Sejas Garcia, R. Torres‐Torres
The rapid evolution of wireless technology demands an ever-growing number of connected devices, and hence, a greater availability of antennas for a gamut of applications in different frequency ranges [1]–[3]. The size, materials, and geometry of antennas, however, depend on the application as well as on important considerations, including resonant frequency, bandwidth, gain, efficiency, shape of the radiation pattern, input impedance, and many more [4]. Hence, a universal measuring technique for antennas cannot be derived, and in general, each case requires that it be treated individually. In addition, as frequency of measurement increases, more effects must be taken into account when interpreting data; one of relevance is that introduced by the surface roughness at the interface between the printed circuit board (PCB) substrate and the metal foil that serves as a conductor [5]–[6]. In fact, the surface roughness of the copper foil is necessary to achieve good adherence to the dielectric substrate, and thus, it is voluntarily included in the manufacturing process. Unfortunately, the variation of the metal surface from the ideal smooth case increases the resistance of the foil at microwave frequencies. In consequence, it negatively impacts the electrical performance of structures and should be considered when assessing the response of antennas on PCB.
无线技术的飞速发展要求连接设备的数量不断增加,因此,不同频率范围的各种应用需要更多的天线[1]-[3]。然而,天线的尺寸、材料和几何形状取决于应用以及重要的考虑因素,包括谐振频率、带宽、增益、效率、辐射图形状、输入阻抗等[4]。因此,无法推导出通用的天线测量技术,一般来说,每种情况都需要单独处理。此外,随着测量频率的增加,在解释数据时必须考虑更多的影响;其中一个相关影响是印刷电路板(PCB)基板与作为导体的金属箔之间的界面表面粗糙度所带来的影响[5]-[6]。事实上,铜箔的表面粗糙度是实现与介质基板良好粘附的必要条件,因此在制造过程中会自愿加入。遗憾的是,金属表面与理想的光滑状态不同,会增加铜箔在微波频率下的电阻。因此,它会对结构的电气性能产生负面影响,在评估印刷电路板上天线的响应时应加以考虑。
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引用次数: 0
Education in I&M: New Insights in Remote Teaching and Learning of Instrumentation and Measurement: The iHomeX Remote Lab Project 仪器仪表和测量教育:仪器仪表和测量远程教学的新视角:iHomeX 远程实验室项目
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-02-01 DOI: 10.1109/MIM.2024.10423663
Sabrina Grassini, Luca Lombardo
Nowadays, thanks to the recent developments both in pedagogy and information and communication technologies, new ideas have made their way into the design and development of educational methodologies. From one side, pedagogy focused the attention on all of the variables which interact in the teaching and learning process, when teachers and learners work toward their goals and incorporate new knowledge, behaviors, and skills that add to their range of experiences. On the other side, web-based learning and networking activities allow the development of new distance learning methodologies using online platforms, multimedia, and teaching techniques to immerse students in a community of learners.
如今,得益于教学法和信息与通信技术的最新发展,教育方法的设计和发展也有了新的思路。一方面,教学法将注意力集中在教学过程中相互作用的所有变量上,教师和学习者努力实现他们的目标,并将新的知识、行为和技能纳入他们的经验范围。另一方面,基于网络的学习和网络活动允许开发新的远程学习方法,利用在线平台、多媒体和教学技术,让学生沉浸在学习者社区中。
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引用次数: 0
Research on Quad-Frequency PPP-B2b Time Transfer 四频 PPP-B2b 时间传输研究
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-02-01 DOI: 10.1109/MIM.2024.10423730
Runzhi Zhang, Lan Li, Xueqing Li, Hongjiao Ma, Gongwei Xiao, Jihai Zhang
Carrier phase time transfer which is a crucial technique in universal time coordinated (UTC) calculation is implemented through precise point positioning (PPP). Since August 2020, the Beidou global navigation satellite system (BDS-3) has provided users with the precise satellite product which is an essential external input in the PPP implementation, named the PPP-B2b product, through three geostationary earth orbit (GEO) satellites instead of a network in the Asia-Pacific area. The PPP-B2b product can be considered to solve the instability problem caused by network interruption in traditional PPP time transfer. Currently, the fact that the PPP-B2b time transfer using dual-frequency (DF) ionosphere-free combination can achieve sub-nanosecond accuracy has been proven. Considering the BDS-3 can provide users with a wide range of frequency signals for PPP; meanwhile, the multi-frequency PPP will improve the accuracy of time transfer and accelerate the convergence. This improvement can be attributed to an increase in the number of observation equations due to the utilization of multiple frequencies. To promote the application of real-time PPP-B2b time comparison in UTC calculation, a quad-frequency (QF) PPP-B2b time transfer model is proposed and investigated. Compared to DF PPP-B2b time transfer, the accuracy of the QF time transfer model was verified from long-baseline time links and zero-baseline common clock difference (CCD). Results showed that the QF PPP-B2b time transfer had smoother CCD results and fluctuated within 0.1 ns, compared to the DF PPP-B2b model. Taking the PPP time comparison using the GBM product as a reference, the results for all long-baseline links show that the residuals of the QF PPP-B2b time comparison truly fluctuate within 1 ns.
载波相位时间转移是世界协调时(UTC)计算中的一项重要技术,通过精确点定位(PPP)来实现。自 2020 年 8 月起,北斗全球导航卫星系统(BDS-3)通过三颗地球静止轨道(GEO)卫星代替亚太地区的网络,为用户提供了精确的卫星产品,这是 PPP 实施过程中必不可少的外部输入,被命名为 PPP-B2b 产品。PPP-B2b 产品可被视为解决了传统 PPP 时间传输中因网络中断而造成的不稳定问题。目前,使用双频(DF)无电离层组合的 PPP-B2b 时间传送可达到亚纳秒级精度的事实已得到证实。考虑到 BDS-3 可以为用户提供多种频率信号用于 PPP;同时,多频 PPP 将提高时间传输的精度并加速收敛。这种改善可归因于多频率的利用导致观测方程数量的增加。为了促进 PPP-B2b 时间实时比较在 UTC 计算中的应用,提出并研究了四频(QF)PPP-B2b 时间转移模型。与 DF PPP-B2b 时间传送相比,QF 时间传送模型的准确性通过长基线时间链路和零基线公共时钟差(CCD)得到了验证。结果表明,与 DF PPP-B2b 模型相比,QF PPP-B2b 时间传输的 CCD 结果更平滑,波动在 0.1 ns 以内。以使用 GBM 产品的 PPP 时间比较为参考,所有长基线链路的结果显示,QF PPP-B2b 时间比较的残差确实在 1 ns 内波动。
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引用次数: 0
Education in I&M: New Insights in Remote Teaching and Learning of Instrumentation and Measurement: The iHomeX Remote Lab Project 仪器仪表和测量教育:仪器仪表和测量远程教学的新视角:iHomeX 远程实验室项目
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-02-01 DOI: 10.1109/MIM.2024.10423663
Sabrina Grassini, Luca Lombardo
Nowadays, thanks to the recent developments both in pedagogy and information and communication technologies, new ideas have made their way into the design and development of educational methodologies. From one side, pedagogy focused the attention on all of the variables which interact in the teaching and learning process, when teachers and learners work toward their goals and incorporate new knowledge, behaviors, and skills that add to their range of experiences. On the other side, web-based learning and networking activities allow the development of new distance learning methodologies using online platforms, multimedia, and teaching techniques to immerse students in a community of learners.
如今,得益于教学法和信息与通信技术的最新发展,教育方法的设计和发展也有了新的思路。一方面,教学法将注意力集中在教学过程中相互作用的所有变量上,教师和学习者努力实现他们的目标,并将新的知识、行为和技能纳入他们的经验范围。另一方面,基于网络的学习和网络活动允许开发新的远程学习方法,利用在线平台、多媒体和教学技术,让学生沉浸在学习者社区中。
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引用次数: 0
Research on Quad-Frequency PPP-B2b Time Transfer 四频 PPP-B2b 时间传输研究
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-02-01 DOI: 10.1109/MIM.2024.10423730
Runzhi Zhang, Lan Li, Xueqing Li, Hongjiao Ma, Gongwei Xiao, Jihai Zhang
Carrier phase time transfer which is a crucial technique in universal time coordinated (UTC) calculation is implemented through precise point positioning (PPP). Since August 2020, the Beidou global navigation satellite system (BDS-3) has provided users with the precise satellite product which is an essential external input in the PPP implementation, named the PPP-B2b product, through three geostationary earth orbit (GEO) satellites instead of a network in the Asia-Pacific area. The PPP-B2b product can be considered to solve the instability problem caused by network interruption in traditional PPP time transfer. Currently, the fact that the PPP-B2b time transfer using dual-frequency (DF) ionosphere-free combination can achieve sub-nanosecond accuracy has been proven. Considering the BDS-3 can provide users with a wide range of frequency signals for PPP; meanwhile, the multi-frequency PPP will improve the accuracy of time transfer and accelerate the convergence. This improvement can be attributed to an increase in the number of observation equations due to the utilization of multiple frequencies. To promote the application of real-time PPP-B2b time comparison in UTC calculation, a quad-frequency (QF) PPP-B2b time transfer model is proposed and investigated. Compared to DF PPP-B2b time transfer, the accuracy of the QF time transfer model was verified from long-baseline time links and zero-baseline common clock difference (CCD). Results showed that the QF PPP-B2b time transfer had smoother CCD results and fluctuated within 0.1 ns, compared to the DF PPP-B2b model. Taking the PPP time comparison using the GBM product as a reference, the results for all long-baseline links show that the residuals of the QF PPP-B2b time comparison truly fluctuate within 1 ns.
载波相位时间转移是世界协调时(UTC)计算中的一项重要技术,通过精确点定位(PPP)来实现。自 2020 年 8 月起,北斗全球导航卫星系统(BDS-3)通过三颗地球静止轨道(GEO)卫星代替亚太地区的网络,为用户提供了精确的卫星产品,这是 PPP 实施过程中必不可少的外部输入,被命名为 PPP-B2b 产品。PPP-B2b 产品可被视为解决了传统 PPP 时间传输中因网络中断而造成的不稳定问题。目前,使用双频(DF)无电离层组合的 PPP-B2b 时间传送可达到亚纳秒级精度的事实已得到证实。考虑到 BDS-3 可以为用户提供多种频率信号用于 PPP;同时,多频 PPP 将提高时间传输的精度并加速收敛。这种改善可归因于多频率的利用导致观测方程数量的增加。为了促进 PPP-B2b 时间实时比较在 UTC 计算中的应用,提出并研究了四频(QF)PPP-B2b 时间转移模型。与 DF PPP-B2b 时间传送相比,QF 时间传送模型的准确性通过长基线时间链路和零基线公共时钟差(CCD)得到了验证。结果表明,与 DF PPP-B2b 模型相比,QF PPP-B2b 时间传输的 CCD 结果更平滑,波动在 0.1 ns 以内。以使用 GBM 产品的 PPP 时间比较为参考,所有长基线链路的结果显示,QF PPP-B2b 时间比较的残差确实在 1 ns 内波动。
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引用次数: 0
Bridge Vibration Analysis Using Fiber-Optic Bragg Sensors with an Inclined Grid 使用带倾斜栅格的光纤布拉格传感器进行桥梁振动分析
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-02-01 DOI: 10.1109/MIM.2024.10423661
A. Kalizhanova, M. Kunelbayev, A. Kozbakova
The article presents a method for identifying and analyzing the selected dynamic characteristics of deformation of a bridge structure using fiberoptic Bragg sensors with an inclined lattice. This paper describes the basic principle of operation of sensors based on a fiber Bragg lattice. Vibration modes were also determined using time series analysis with a high sampling rate. With the help of appropriate mathematical models (filters) and spectral analysis, it was possible to identify and describe the oscillation frequencies of the structure, which were compared with the theoretical model described by the dynamic behavior of the bridge. This model has been tested on a car and pedestrian bridge. With the help of the developed mathematical and experimental model, data were processed, and vibration modes were determined during vibration of bridge structures.
文章介绍了一种利用带倾斜晶格的光纤布拉格传感器识别和分析桥梁结构变形的选定动态特性的方法。本文介绍了基于光纤布拉格晶格的传感器的基本工作原理。此外,还利用高采样率的时间序列分析确定了振动模式。在适当的数学模型(滤波器)和频谱分析的帮助下,可以确定和描述结构的振动频率,并将其与桥梁动态行为所描述的理论模型进行比较。该模型已在汽车桥和人行桥上进行了测试。在开发的数学和实验模型的帮助下,对数据进行了处理,并确定了桥梁结构振动时的振动模式。
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引用次数: 0
Instrumentation and Measurement Systems: Ecosystems—Insights from NDT and Eddy Current Testing 仪器和测量系统:生态系统--无损检测和涡流检测的启示
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-02-01 DOI: 10.1109/MIM.2024.10423654
D. Vasić, V. Bilas
In this column we explore the concept of the instrumentation ecosystem, a dynamic interconnected environment where stakeholders collectively advance education, research, design, technology, usage, and regulation of instrumentation systems. Using non-destructive testing (NDT), with a specific focus on eddy current testing (ECT) as an illustrative case, we unravel the pivotal roles played by the key stakeholders. We argue that comprehending the instrumentation ecosystem's intricacies and dynamics fully illuminates the significance of the technological advancements and fundamental knowledge in the field of instrumentation and measurement.
在本专栏中,我们将探讨仪器仪表生态系统的概念,这是一个动态的相互关联的环境,利益相关者共同推进仪器仪表系统的教育、研究、设计、技术、使用和监管。以无损检测(NDT)为例,特别关注涡流检测(ECT),我们将揭示主要利益相关者所发挥的关键作用。我们认为,了解仪器仪表生态系统的错综复杂性和动态性可以充分阐明仪器仪表和测量领域技术进步和基础知识的意义。
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引用次数: 0
Medicine 4.0: When New Technologies Work with Artificial Intelligence 医学 4.0:新技术与人工智能的结合
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-02-01 DOI: 10.1109/MIM.2024.10423727
Eros Pasero
The field of Instrumentation and Measurement (IM) plays a crucial role in the advancement of healthcare technologies. In this paper, we provide an introduction and overview of methodologies, technologies, and applications in the realm of IM, with a focus on telemedicine, e-health, wearable devices, and the integration of Artificial Intelligence (AI). We address open problems and challenging topics within the IM framework and provide references to articles published in IM venues to support our discussion. Furthermore, we adhere to IEEE publication policies and publishing ethics throughout the paper.
仪器与测量(IM)领域在医疗保健技术的发展中发挥着至关重要的作用。在本文中,我们将介绍和概述仪器与测量领域的方法、技术和应用,重点关注远程医疗、电子健康、可穿戴设备和人工智能(AI)的整合。我们探讨即时通讯框架内的开放性问题和具有挑战性的主题,并提供在即时通讯领域发表的文章的参考文献,以支持我们的讨论。此外,我们在论文中始终遵守 IEEE 出版政策和出版道德规范。
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引用次数: 0
Measurement and Applications: Electrochemical Sensors and Instruments: Main Characteristics and Applications 测量与应用:电化学传感器和仪器:主要特点和应用
IF 2.1 4区 工程技术 Q2 Physics and Astronomy Pub Date : 2024-02-01 DOI: 10.1109/MIM.2024.10423658
J. D. Pereira, João Monge, Octavian Postolache
An electrochemical sensor is a device capable of providing analytical information about a sample, transforming the information associated with an electrochemical reaction into a signal that can be quantified. An electrochemical sensor is generally made up of three electrodes: a reference electrode that keeps the potential stable; a counter electrode that establishes a connection with the electrolyte solution; and a working electrode that functions as a transduction element in the reaction. Regarding the working electrode, it is important to underline that surface modification can be carried out by immobilizing functional groups or biological recognition elements, such as antibodies or enzymes, so that the species of interest can be electrochemically detected. In recent decades, sensors have benefited from advances in microelectronics and microengineering, with the manufacture of smaller sensors, greater sensitivity and selectivity, larger dynamic range and lower production costs, and electrochemical sensors are not an exception. Thus, electrochemical sensors are being increasingly used in a large number of applications due to their ability to be easily integrated into automatic measurement systems that work in the laboratory or outdoors, which is the case when they are used for environmental parameters assessment.
电化学传感器是一种能够提供样品分析信息的装置,它将与电化学反应相关的信息转化为可量化的信号。电化学传感器一般由三个电极组成:保持电位稳定的参比电极;与电解质溶液建立连接的对电极;以及在反应中起传导作用的工作电极。关于工作电极,必须强调的是,可以通过固定功能基团或生物识别元件(如抗体或酶)对其进行表面改性,从而对相关物种进行电化学检测。近几十年来,传感器得益于微电子学和微工程学的进步,传感器的体积更小、灵敏度和选择性更高、动态范围更大、生产成本更低,电化学传感器也不例外。因此,电化学传感器由于能够轻松集成到实验室或室外自动测量系统中(用于环境参数评估时就是如此),正被越来越多地应用于各种领域。
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引用次数: 0
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