Measurement Sensors最新文献

英文中文

Research on simulation extrapolation estimation method in large-scale torque measurement scene 大型扭矩测量场景仿真外推估计方法研究

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101381

Jialin Lyu, Peijun Wang, Wubin Lyu, Yuxin Sun, Shujing Xu, Xianglong Ma

For the practical needs of measuring large-scale torque in high-speed engines and wind turbines, how to reasonably extrapolate and estimate torque values, and ensure the accuracy of large-scale torque measurement results, has become an urgent problem to be investigated. In this paper, the large-scale torque extrapolation estimation problem was studied by experiment and simulation. Firstly, two different types of torque transducers were placed on the torque measurement standard device, and the torque measurement points were taken and recorded at the corresponding values of 20 %, 50 % and 100 % of the full range respectively. Then, based on the changing trend of torque value and interpolation deviation in different range, the linear extrapolation estimation method was adopted, and the estimation model of large-scale torque was established. Based on the torque data in 20 % and 50 % of the full range in the experiment, the full range torque value was predicted by simulation and compared with the results in experiment. Finally, the effectiveness of the linear extrapolation estimation method was analyzed and compared, in order to provide an effective reference for the accuracy and traceability of large-scale measurement of torque transducers.

针对高速发动机和风力发电机组大扭矩测量的实际需要，如何合理地推断和估计扭矩值，并保证大扭矩测量结果的准确性，已成为迫切需要研究的问题。本文采用实验和仿真相结合的方法，研究了大规模转矩外推估计问题。首先，将两种不同类型的扭矩传感器放置在扭矩测量标准装置上，分别在全量程的20%、50%和100%对应值处取下扭矩测量点并记录。然后，根据转矩值和插补偏差在不同范围内的变化趋势，采用线性外推估计方法，建立大尺度转矩估计模型；基于实验中全量程20%和50%的转矩数据，通过仿真预测全量程转矩值，并与实验结果进行对比。最后，对线性外推估计方法的有效性进行了分析和比较，以期为液力传感器大规模测量的精度和可追溯性提供有效参考。

{"title":"Research on simulation extrapolation estimation method in large-scale torque measurement scene","authors":"Jialin Lyu, Peijun Wang, Wubin Lyu, Yuxin Sun, Shujing Xu, Xianglong Ma","doi":"10.1016/j.measen.2024.101381","DOIUrl":"10.1016/j.measen.2024.101381","url":null,"abstract":"<div><div>For the practical needs of measuring large-scale torque in high-speed engines and wind turbines, how to reasonably extrapolate and estimate torque values, and ensure the accuracy of large-scale torque measurement results, has become an urgent problem to be investigated. In this paper, the large-scale torque extrapolation estimation problem was studied by experiment and simulation. Firstly, two different types of torque transducers were placed on the torque measurement standard device, and the torque measurement points were taken and recorded at the corresponding values of 20 %, 50 % and 100 % of the full range respectively. Then, based on the changing trend of torque value and interpolation deviation in different range, the linear extrapolation estimation method was adopted, and the estimation model of large-scale torque was established. Based on the torque data in 20 % and 50 % of the full range in the experiment, the full range torque value was predicted by simulation and compared with the results in experiment. Finally, the effectiveness of the linear extrapolation estimation method was analyzed and compared, in order to provide an effective reference for the accuracy and traceability of large-scale measurement of torque transducers.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"38 ","pages":"Article 101381"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211957","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

The research of force standard machine tracing to the Planck constant h 力标准机追踪普朗克常数h的研究

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101368

Yuanjie Chen , Na Wang , JinXin Xu , Ruiduo Yin , Jie Chen , Xiaobin Xie , Jianing Chen , Yue Min , Haigen Li

The force transducer converts the magnitude of a force into an associated electrical signal, detecting mechanical quantities such as tension, pressure, weight, torque, strain, and internal stress. Being an indispensable core component of power equipment, construction machinery, various working machinery, and industrial automation systems, the calibration of the force transducer is crucial. This paper proposes a continuous force standard machine for calibrating force transducers, which combines the advantages of the common force standard machines and the Kibble balance. The goal of the proposed standard machine is to continuously measure the electromagnetic force and trace the force to Planck constant h. In the proposed design, the standard electromagnetic force of kilonewton magnitude is generated by the permanent magnet and coil system, which can be continuously changed by adjusting the magnitude and direction of the coil current. The electromagnetic force, amplified by the unequal arm balance lever, acts on the calibrated transducer. Herein, the concrete components of the new force standard machine are given, and the feasibility is demonstrated.

力传感器将力的大小转换成相关的电信号，检测诸如张力、压力、重量、扭矩、应变和内应力等机械量。力传感器是电力设备、工程机械、各种工作机械和工业自动化系统中不可缺少的核心部件，其校准至关重要。结合常用力标机和基布尔天平的优点，提出了一种用于力传感器标定的连续力标机。所提出的标准机的目标是连续测量电磁力并将其追踪到普朗克常数h。在所提出的设计中，由永磁体和线圈系统产生千牛顿量级的标准电磁力，通过调节线圈电流的大小和方向可以连续改变。电磁力被不相等的臂平衡杠杆放大，作用在被校准的传感器上。文中给出了新力标机的具体组成，并对其可行性进行了论证。

{"title":"The research of force standard machine tracing to the Planck constant h","authors":"Yuanjie Chen , Na Wang , JinXin Xu , Ruiduo Yin , Jie Chen , Xiaobin Xie , Jianing Chen , Yue Min , Haigen Li","doi":"10.1016/j.measen.2024.101368","DOIUrl":"10.1016/j.measen.2024.101368","url":null,"abstract":"<div><div>The force transducer converts the magnitude of a force into an associated electrical signal, detecting mechanical quantities such as tension, pressure, weight, torque, strain, and internal stress. Being an indispensable core component of power equipment, construction machinery, various working machinery, and industrial automation systems, the calibration of the force transducer is crucial. This paper proposes a continuous force standard machine for calibrating force transducers, which combines the advantages of the common force standard machines and the Kibble balance. The goal of the proposed standard machine is to continuously measure the electromagnetic force and trace the force to Planck constant <em>h</em>. In the proposed design, the standard electromagnetic force of kilonewton magnitude is generated by the permanent magnet and coil system, which can be continuously changed by adjusting the magnitude and direction of the coil current. The electromagnetic force, amplified by the unequal arm balance lever, acts on the calibrated transducer. Herein, the concrete components of the new force standard machine are given, and the feasibility is demonstrated.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"38 ","pages":"Article 101368"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212040","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

Research and discussion on traceability of force values for large force standard machines 大型力标机力值溯源的研究与探讨

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101372

Huaisuo Zhang , Zecheng Tao , Luo Xin , Liehui Qian , Shen Qi

The precise measurement of large force values, especially those above 20 MN, has always been a difficulty to be urgently solved in China and abroad, and has not been solved yet. To solve this problem, this article provides a practical and feasible method for traceability and calibration of high-precision large range force values. Using the Pascal principle, a small range testing system with known accuracy is connected to the measured large range force standard machine through a pipeline, with a hydraulic cylinder system with known surface area at both ends. The accuracy of the large range force is accurately determined through sensitivity measurement, and this method can test the friction and other parameters of the hydraulic cylinder.

大力值特别是20 MN以上力值的精确测量，一直是国内外亟待解决的难题，至今仍未得到解决。为解决这一问题，本文提供了一种实用可行的高精度大量程力值溯源与标定方法。利用帕斯卡原理，将精度已知的小量程测试系统通过管道与被测大量程力标机连接，两端有已知表面积的液压缸系统。通过灵敏度测量准确确定大量程力的精度，该方法可以测试液压缸的摩擦等参数。

引用次数: 0

Towards improving the metrological performance of a graphite calorimeter for radiation dosimetry measurements 改进辐射剂量测量用石墨量热计的计量性能

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101426

Susy Toma , Massimo Pinto , Fausto Arpino , Domenico Capriglione

This paper summarizes the progress on enhancing the metrological performance of the Italian national standard of absorbed dose to water, a graphite calorimeter, in a water phantom, for radiation dosimetry measurements designed and built at ENEA-INMRI, National Institute of Ionizing Radiation Metrology in Italy. This constitutes the first application of graphite calorimetry in the mid-energy x-ray region, with generating voltages from 180 to 250 kV, in an effort to improve the measurement accuracy of the quantity absorbed dose to water, D_w. The design of the Italian primary standard for absorbed dose to water D_w is shown, together with a wide experimental campaign aimed at identifying the optimized instrument settings which allows improving the measurement repeatability and reducing the overall uncertainty budget.

本文综述了意大利国家电离辐射计量研究所（ENEA-INMRI）研制的水模式石墨量热计在提高意大利国家标准水吸收剂量计量性能方面的进展。这是石墨量热法在产生180 ~ 250千伏电压的中能x射线区域的首次应用，旨在提高对水的吸收剂量Dw的测量精度。图中展示了意大利吸收剂量对水Dw主要标准的设计，以及旨在确定优化仪器设置的广泛实验活动，这些设置可以提高测量可重复性并减少总体不确定度预算。

引用次数: 0

A novel vegetation index for the detection and age determination of tree resin 一种用于树脂检测和年龄测定的新型植被指数

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101316

Martin Richter, Maik Rosenberger, Gunther Notni

In this work, we analysed the reflectance spectrum of spruce trees with the aim of deriving an index based on the NDVI principle that allows easy and fast identification of tree resin on and around spruce trees. The proposed normalized resin difference index uses a wavelength of 1688 nm in combination with either 1093 nm, 1138 nm or 1282 nm to reliably distinguish resin traces from bark and moss. Based on the initial experiments, the proposed index may be promising to be used as an indicator of the age of the resin.

在这项工作中，我们分析了云杉树的反射光谱，目的是基于NDVI原理得出一个指数，该指数可以轻松快速地识别云杉树上和周围的树树脂。所提出的归一化树脂差异指数使用波长为1688 nm，结合1093 nm， 1138 nm或1282 nm，以可靠地区分树皮和苔藓的树脂痕迹。在初步实验的基础上，提出的指标有望作为树脂年龄的指标。

引用次数: 0

Potential of full-colour 3d-printing in multisensual education 全彩3d打印在多感官教育中的潜力

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101317

Benedikt Hollmann , Christina Junger , Gunther Notni

Our Study investigates the potential of integrating tactile elements into educational materials using a specialized 3D printer, the XYZprinting Da Vinci Color. We are examining its effectiveness in professional learning environments. Additionally, we are exploring various methods such as scanning and modelling to create tactile-friendly print models. Well compile a comprehensive guide on utilizing the printer and these methods, which will streamline future research and application. Our findings indicate that while the printer can produce high-quality models, it also has limitations. Also, the effort needed to create printable and coloured models is strongly dependent on the use case.

我们的研究调查了使用专业3D打印机将触觉元素整合到教育材料中的潜力，XYZprinting达芬奇彩色打印机。我们正在研究它在专业学习环境中的有效性。此外，我们正在探索各种方法，如扫描和建模，以创建触觉友好的打印模型。我们将编写一份关于使用打印机和这些方法的综合指南，这将简化未来的研究和应用。我们的研究结果表明，虽然打印机可以生产出高质量的模型，但它也有局限性。此外，创建可打印和彩色模型所需的工作量很大程度上依赖于用例。

引用次数: 0

1 kN·m binary dead weight torque standard machine at SASO / NMCC SASO / NMCC的1 kN·m二进制自重扭矩标准机

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101383

C. Doğan , S. Tunacı , S.A. Bin Jarbua , S.M. AlQarni

A 1 kN·m binary dead weight torque standard machine was established at National Measurement and Calibration Center (SASO/NMCC) in 2019 by TÜBİTAK UME. Realisation of torque unit is based on the definition of torque and directly traceable to the mass, length, and time units. It is performed by a lever arm and deadweight system. The lever arm is symmetrical and supported by an air bearing. The machine has two identical and independent dead weight sets, work according to a binary system to create right and left hand torques. All dead weights are under the influence of local gravity and air buoyancy. The machine can apply torque from 1 N·m to 1000 N m with a resolution of 1 N m.

This paper describes the mechanical structure of the machine and uncertainty assessment. The relative expanded measurement uncertainty is smaller than 1 × 10⁻⁴ in the range of 1 N·m to 1000 N m.

2019年，TÜBİTAK UME在国家测量与校准中心（SASO/NMCC）建立了一台1 kN·m二进制自重扭矩标准机。力矩单位的实现基于力矩的定义，可直接追溯到质量、长度和时间单位。它是由杠杆臂和自重系统执行的。杠杆臂是对称的，由空气轴承支撑。这台机器有两个相同且独立的自重装置，根据二进制系统工作以产生右手和左手扭矩。所有自重都受到当地重力和空气浮力的影响。本机可施加1 N·m ~ 1000 N·m的扭矩，分辨率为1 N·m。本文介绍了本机的机械结构和不确定度评定。在1 N·m ~ 1000 N m范围内，相对扩展的测量不确定度小于1 × 10−4。

引用次数: 0

Metrological traceability for the absolute gravity Italian network 意大利绝对重力网络的计量溯源性

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101389

Alessio Facello , Alessandro Germak , Andrea Prato , Filippo Greco , Luca Samperi , Danilo Contrafatto , Giovanna Berrino , Federica Riguzzi , Riccardo Barzaghi , Augusto Mazzoni

The Absolute Gravity Italian Network project aims to update the Italian gravity network that nowadays is framed to IGSN71, established in 1971. The focal point of the project is to define a new reference for gravity with absolute gravity observations performed according to the international standardised methodology detailed in the document “CCM-IAG Strategy for Metrology in Absolute Gravimetry” (2015). IAG resolution No. 2 and subsequent, moreover establish the need to satisfy the metrological traceability also for Absolute Gravity measurements. This can be exploited by different methods such as reference sites, international comparisons of absolute gravimeters and calibration by comparison.

Measurements have been performed in appropriate sites distributed across the Italian country. The collected and validated data will be stored in an open database, as the absolute gravity database maintained by the Bureau Gravimétrique International/Bundesamt fuer Kartographie und Geodaesie when will be operative, contributing to feed the new International Terrestrial Gravity Reference System.

All the gravimeters used in the measurements participated to the international comparisons organised by CCM and/or EURAMET TC-M obtaining compatible results. However, in order to validate the results and to ensure traceability to the SI, additional comparisons between the absolute gravimeters used in the measurements have been performed just before the measurement campaign. The primary Italian reference instrument is the absolute gravimeter IMGC-02, developed and maintained by INRiM with an expanded measurement uncertainty of 8.5 μGal. The comparison sites are both located at INRiM and are provided with solid basements that guarantee good measurement repeatability and low floor noise which could ensure the final uncertainty. This paper shows the results of these measurements.

意大利绝对重力网络项目旨在更新意大利重力网络，该网络目前被框定为1971年建立的IGSN71。该项目的重点是根据“CCM-IAG绝对重力计量战略”（2015）文件中详细介绍的国际标准化方法，通过绝对重力观测定义一个新的重力参考。此外，IAG 2号决议及后续决议还确立了绝对重力测量需要满足计量溯源性。这可以通过不同的方法加以利用，例如参考地点、绝对重力仪的国际比较和比较校准。在意大利全国各地的适当地点进行了测量。收集和验证的数据将储存在一个开放的数据库中，作为国际重力/联邦航空和大地测量局维持的绝对重力数据库，当它开始运作时，将为新的国际地球重力参考系统提供资料。所有用于测量的重力仪都参加了由CCM和/或EURAMET TC-M组织的国际比较，获得了一致的结果。然而，为了验证结果并确保对SI的可追溯性，在测量活动之前，在测量中使用的绝对重力仪之间进行了额外的比较。意大利的主要参考仪器是由INRiM开发和维护的绝对重力仪IMGC-02，扩展测量不确定度为8.5 μGal。比较点都位于INRiM，并提供坚实的地下室，保证了良好的测量重复性和低地板噪音，可以确保最终的不确定度。本文给出了这些测量的结果。

{"title":"Metrological traceability for the absolute gravity Italian network","authors":"Alessio Facello , Alessandro Germak , Andrea Prato , Filippo Greco , Luca Samperi , Danilo Contrafatto , Giovanna Berrino , Federica Riguzzi , Riccardo Barzaghi , Augusto Mazzoni","doi":"10.1016/j.measen.2024.101389","DOIUrl":"10.1016/j.measen.2024.101389","url":null,"abstract":"<div><div>The Absolute Gravity Italian Network project aims to update the Italian gravity network that nowadays is framed to IGSN71, established in 1971. The focal point of the project is to define a new reference for gravity with absolute gravity observations performed according to the international standardised methodology detailed in the document “CCM-IAG Strategy for Metrology in Absolute Gravimetry” (2015). IAG resolution No. 2 and subsequent, moreover establish the need to satisfy the metrological traceability also for Absolute Gravity measurements. This can be exploited by different methods such as reference sites, international comparisons of absolute gravimeters and calibration by comparison.</div><div>Measurements have been performed in appropriate sites distributed across the Italian country. The collected and validated data will be stored in an open database, as the absolute gravity database maintained by the Bureau Gravimétrique International/Bundesamt fuer Kartographie und Geodaesie when will be operative, contributing to feed the new International Terrestrial Gravity Reference System.</div><div>All the gravimeters used in the measurements participated to the international comparisons organised by CCM and/or EURAMET TC-M obtaining compatible results. However, in order to validate the results and to ensure traceability to the SI, additional comparisons between the absolute gravimeters used in the measurements have been performed just before the measurement campaign. The primary Italian reference instrument is the absolute gravimeter IMGC-02, developed and maintained by INRiM with an expanded measurement uncertainty of 8.5 μGal. The comparison sites are both located at INRiM and are provided with solid basements that guarantee good measurement repeatability and low floor noise which could ensure the final uncertainty. This paper shows the results of these measurements.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"38 ","pages":"Article 101389"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213192","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

Study on force transducers dynamic calibration according to sinusoidal method 基于正弦法的力传感器动态标定研究

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101373

Limin Zeng , Yao Xiao , Hao Cao , Hao Wang , Wei Shen , Sujuan Xiang , Shenghui Bao , Xinyue Wei

This research aims to introduce the current progress of dynamic calibration of force transducers by sinusoidal method. The acceleration measurement by absolute method is the developing direction of sinusoidal force measurement. Besides, the influence of acceleration distribution of mass block should be taken into consideration. The size, density, and Young's modulus of the mass block affect the acceleration distribution. The study demonstrates that the uniform acceleration distribution in materials like steel and cemented carbide leads to more accurate calibration outcomes, the diameter and height of the mass block have a significant influence on the distribution of acceleration. The vibration frequency of sinusoidal force directly affects the dynamic calibration result of the sensitivity of the force sensor, and the natural frequency of standard devices of sinusoidal force calibration is affected by the mass block dramatically. Therefore, it is suggested that an international standard for dynamic calibration of force transducers based on sinusoidal methods should be formulated to resolve the differences between the relevant technical standards and the requirements of calibration items and methods for force transducers among various countries. Therefore, the unified calculation method and quantity values of dynamic calibration of force transducers according to the sinusoidal method can be achieved.

本文旨在介绍正弦法动态标定力传感器的研究进展。用绝对法测量加速度是正弦力测量的发展方向。此外，还应考虑质量块体加速度分布的影响。质量块的大小、密度和杨氏模量影响加速度分布。研究表明，加速度在钢、硬质合金等材料中的均匀分布使标定结果更加准确，质量块的直径和高度对加速度分布有显著影响。正弦波力的振动频率直接影响力传感器灵敏度的动态校准结果，正弦波力校准标准装置的固有频率受质量块的影响较大。因此，建议制定一项基于正弦方法的力传感器动态校准国际标准，以解决各国相关技术标准与力传感器校准项目和方法要求的差异。因此，可以根据正弦法实现力传感器动态校准的统一计算方法和量值。

{"title":"Study on force transducers dynamic calibration according to sinusoidal method","authors":"Limin Zeng , Yao Xiao , Hao Cao , Hao Wang , Wei Shen , Sujuan Xiang , Shenghui Bao , Xinyue Wei","doi":"10.1016/j.measen.2024.101373","DOIUrl":"10.1016/j.measen.2024.101373","url":null,"abstract":"<div><div>This research aims to introduce the current progress of dynamic calibration of force transducers by sinusoidal method. The acceleration measurement by absolute method is the developing direction of sinusoidal force measurement. Besides, the influence of acceleration distribution of mass block should be taken into consideration. The size, density, and Young's modulus of the mass block affect the acceleration distribution. The study demonstrates that the uniform acceleration distribution in materials like steel and cemented carbide leads to more accurate calibration outcomes, the diameter and height of the mass block have a significant influence on the distribution of acceleration. The vibration frequency of sinusoidal force directly affects the dynamic calibration result of the sensitivity of the force sensor, and the natural frequency of standard devices of sinusoidal force calibration is affected by the mass block dramatically. Therefore, it is suggested that an international standard for dynamic calibration of force transducers based on sinusoidal methods should be formulated to resolve the differences between the relevant technical standards and the requirements of calibration items and methods for force transducers among various countries. Therefore, the unified calculation method and quantity values of dynamic calibration of force transducers according to the sinusoidal method can be achieved.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"38 ","pages":"Article 101373"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213196","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

Comparison of measurement methods for the correction factor of microcalorimeters 微量热计校正系数测量方法的比较

Q4 Engineering

Measurement Sensors

Pub Date : 2025-05-01 DOI: 10.1016/j.measen.2024.101413

Windi Kurnia Perangin-Angin , Jürgen Rühaak , Karsten Kuhlmann

Correction factor is one of the key parameters in the characterization of a microcalorimeter. The correction factor of the microcalorimeter removes the power loss contribution to the RF power measurement in the calibration of an RF power sensor. National Metrology Institutes choose the measurement method of the microcalorimeter correction factor based on its advantages and disadvantages. Here, the determination of the correction factor using three methods, i.e. offset short, short foil, and VNA method has been conducted for an R 500 waveguide microcalorimeter. The results are compared, and the correction factors of all methods show a good agreement. Also analysed are the measurement uncertainties of the three techniques. The measurement uncertainty of the correction factor is the most significant uncertainty source for the determination of effective efficiency of a transfer standard.

校正因子是表征微热量计的关键参数之一。微热量计的校正系数消除了射频功率传感器校准中射频功率测量的功率损耗。国家计量研究院根据微热量计修正系数的优缺点，选择了微热量计修正系数的测量方法。本文对r500波导微热量计进行了三种校正系数的测定，即偏置短、短箔和VNA法。结果表明，各方法的校正因子具有较好的一致性。分析了三种测量方法的测量不确定度。校正系数的测量不确定度是确定传递标准有效效率的最重要的不确定度来源。

引用次数: 0

首页上一页

下一页尾页

类型

全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

数据库

全部 ACS Publications Elsevier ieeexplore Springer The Royal Society of Chemistry Wiley

期刊

Measurement Sensors

全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.

﹀