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2020 Conference on Precision Electromagnetic Measurements (CPEM)最新文献

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A TVM Based Wideband Phase Measurement System by Multiusing One Thermal Voltage Converter 基于TVM的多路热电压变换器宽带相位测量系统
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191881
T. Yamada, Y. Amagai
{"title":"A TVM Based Wideband Phase Measurement System by Multiusing One Thermal Voltage Converter","authors":"T. Yamada, Y. Amagai","doi":"10.1109/CPEM49742.2020.9191881","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191881","url":null,"abstract":"This paper describes that the previous version of the phase measurement system based on the three-voltmeter method (TVM) has been improved by a new method of multiusing a thermal voltage converter (TVC) to allow wideband phase measurements up to sub-MHz range. With the proposed method, switching a differential mode and reversible single-ended modes of the TVC enables the phase measurement system to have additional preliminary calibrations of the voltmeters. The details of the other improvements to the measurement system is also described here.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123080964","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: 1
Alignment in the MSL Kibble balance 在MSL基布尔平衡校准
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191879
Y. H. Fung, M. T. Clarkson, F. Messerli
{"title":"Alignment in the MSL Kibble balance","authors":"Y. H. Fung, M. T. Clarkson, F. Messerli","doi":"10.1109/CPEM49742.2020.9191879","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191879","url":null,"abstract":"This paper discusses the alignment aspects of the MSL Kibble balance, which is based on a twin pressure balance setup. This novel design utilizes the features of the piston-cylinder unit in a pressure balance, where its strong self-centring force can provide a well-defined axis for the moving coil. Here we present the MSL Kibble balance in terms of its design features and operation, effects of misalignments of the piston-cylinder unit and requirements to mitigate this. In particular, we model the righting moment of the piston-cylinder system and show how this is essential for the alignment and operation of this Kibble balance.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117121531","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
Volume Measurement of a 28Si-enriched Sphere to Realize the Kilogram Based on the Planck Constant at NMIJ 基于普朗克常数的28si富球在NMIJ的体积测量以实现千克
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191856
Y. Ota, S. Okubo, H. Inaba, N. Kuramoto
{"title":"Volume Measurement of a 28Si-enriched Sphere to Realize the Kilogram Based on the Planck Constant at NMIJ","authors":"Y. Ota, S. Okubo, H. Inaba, N. Kuramoto","doi":"10.1109/CPEM49742.2020.9191856","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191856","url":null,"abstract":"The kilogram based on the new definition revised in 2019 will be realized at the National Metrology Institute of Japan (NMIJ) by using the x-ray crystal density method. For the realization, the volume of a 28Si-enriched sphere, named AVO28-S5c, was measured. The volume was determined from the diameter measurement in many directions by an optical interferometer. The determined volume was also used to evaluate the long-term stability of the volume by comparison to the volume determined in 2016. Detail of the analysis of the volume measurement is presented.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117353733","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: 1
Correction on the Impulse Scale Factor and Time Parameters of the Reference Divider Based on the Step Response and Convolution 基于阶跃响应和卷积的参考分频器脉冲比例因子和时间参数校正
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191860
Yang Pan, Jian Feng, Lei Lai, Liren Zhou, Huichen Zhu, G. Zhan
{"title":"Correction on the Impulse Scale Factor and Time Parameters of the Reference Divider Based on the Step Response and Convolution","authors":"Yang Pan, Jian Feng, Lei Lai, Liren Zhou, Huichen Zhu, G. Zhan","doi":"10.1109/CPEM49742.2020.9191860","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191860","url":null,"abstract":"In this paper, a novel method for evaluation impulse scale factor and time parameters of the reference high-voltage divider based on the step response convolution is described. Experiment and simulation results show that the error of the lightning impulse measurement system is approximately equal to the algebraic sum of the differences of the individual cascade components. This conclusion is applicable to the reference system that complies with the IEC 60060-2 specification, and can be used to the impulse scale factor and time parameter corrections of reference divider.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123765991","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
A four-terminal-pair pulse-driven Josephson impedance bridge for 10 nF:10 nF capacitance ratio measurements 用于10nf: 10nf电容比测量的四端对脉冲驱动约瑟夫森阻抗桥
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191785
Y. Pimsut, S. Bauer, J. Herick, L. Palafox, O. Kieler, R. Behr
{"title":"A four-terminal-pair pulse-driven Josephson impedance bridge for 10 nF:10 nF capacitance ratio measurements","authors":"Y. Pimsut, S. Bauer, J. Herick, L. Palafox, O. Kieler, R. Behr","doi":"10.1109/CPEM49742.2020.9191785","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191785","url":null,"abstract":"In this paper, the extension of PTB's pulse-driven Josephson impedance bridge to measure four terminal pair impedances is presented. First results for the ratio of two 10 nF capacitance standards will be shown. The difference between the ratio measured by the Josephson impedance bridge at 1233 Hz and the result from an impedance bridge based on inductive voltage dividers is 2 nF/F with a type-A uncertainty of 5 nF/F. Furthermore, the ratio results from this bridge at frequencies from 246 Hz to 4932 Hz are in good agreement with the results from a commercial precision capacitance bridge.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123772215","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: 2
Comparison amplitude error of current shunts at frequencies up to 100 kHz between NMIA and NIM 比较NMIA和NIM在高达100khz频率下电流分流器的幅度误差
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191931
Xianlin Pan, I. Budovsky, V. Balakrishnan, Zhaomin Shi, Jiangtao Zhang
{"title":"Comparison amplitude error of current shunts at frequencies up to 100 kHz between NMIA and NIM","authors":"Xianlin Pan, I. Budovsky, V. Balakrishnan, Zhaomin Shi, Jiangtao Zhang","doi":"10.1109/CPEM49742.2020.9191931","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191931","url":null,"abstract":"This paper describes the comparison of amplitude error measurement in current shunts between NMIA and NIM at frequencies from 1 kHz to 100 kHz. A set of cage design shunts has been developed at NMIA and its amplitude errors determined using the ac-dc transfer setup at NMIA. At NIM a set of Inductive Current Dividers (ICDs) with ratios of 2:1, 5:1 and 10:1 has been developed to compare the amplitude errors of two shunts. Based on two totally different measurement methods, a number of current shunts have been compared at frequencies from 1 kHz to 100 kHz. The measurements of amplitude errors of current shunts yield excellent agreement within $10 mu mathrm{Omega}/mathrm{Omega}$ at frequencies up to 100 kHz and currents from 0.5 A to 10 A.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126655114","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
Coulomb Blockade Thermometry on a Wide Temperature Range 宽温度范围上的库仑封锁测温
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191726
O. Hahtela, A. Kemppinen, J. Lehtinen, A. Manninen, E. Mykkänen, M. Prunnila, N. Yurttagül, F. Blanchet, M. Gramich, B. Karimi, E. Mannila, J. Muhojoki, J. Peltonen, J. Pekola
{"title":"Coulomb Blockade Thermometry on a Wide Temperature Range","authors":"O. Hahtela, A. Kemppinen, J. Lehtinen, A. Manninen, E. Mykkänen, M. Prunnila, N. Yurttagül, F. Blanchet, M. Gramich, B. Karimi, E. Mannila, J. Muhojoki, J. Peltonen, J. Pekola","doi":"10.1109/CPEM49742.2020.9191726","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191726","url":null,"abstract":"The Coulomb Blockade Thermometer (CBT) is a primary thermometer for cryogenic temperatures, with demonstrated operation from below 1 mK up to 60 K. Its performance as a primary thermometer has been verified at temperatures from 20 mK to 200 mK at uncertainty level below 1% ($k=2$). In a new project, our aim is to extend the metrologically verified temperature range of the primary CBT up to 25 K. We also demonstrate close-to-ideal operation of a CBT with only two tunnel junctions when the device is embedded in a low-impedance environment.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115556136","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: 2
Progress report on the LNE Thompson-Lampard Calculable Capacitor 联机汤普森-兰帕德可计算电容器的进展报告
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191720
O. Thévenot, A. Imanaliev, K. Dougdag, F. Piquemal
{"title":"Progress report on the LNE Thompson-Lampard Calculable Capacitor","authors":"O. Thévenot, A. Imanaliev, K. Dougdag, F. Piquemal","doi":"10.1109/CPEM49742.2020.9191720","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191720","url":null,"abstract":"This paper outlines a practical realization of the farad in the revised SI at LNE. To improve the traceability of the unit of capacitance in the SI with a target relative standard uncertainty of one part in 108, a new Thompson-Lampard calculable capacitor is currently developed. This paper presents the latest developments on the alignment of the electrodes and the positioning of the movable guard in the cavity.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122416056","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: 1
Research on Harmonic Voltage Measurement Accuracy Based on AC Quantum Voltage 基于交流量子电压的谐波电压测量精度研究
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191758
Xitong Xu, Zhengsen Jia, Lei Wang, Tiandi Zhou, Jiangtao Zhang, Xianlin Pan, Zhaomin Shi
{"title":"Research on Harmonic Voltage Measurement Accuracy Based on AC Quantum Voltage","authors":"Xitong Xu, Zhengsen Jia, Lei Wang, Tiandi Zhou, Jiangtao Zhang, Xianlin Pan, Zhaomin Shi","doi":"10.1109/CPEM49742.2020.9191758","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191758","url":null,"abstract":"In this paper, factors affecting harmonic measurement accuracy were analyzed, which is based on AC quantum voltage. Two factors, the non-integer period sampling and the number of steps, that influence the harmonic measurement are identified. The sensitivity of each influential factor is verified by experiments. In our system the sampling complement is under 0.005 and the non-integer periodic error is less than 10−7. The number of steps should be more than two times of the highest harmonics contained in the signal in order to avoid signal aliasing.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"426 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122473317","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
Software Corrections for Switching Impulse Voltage Divider Response 开关脉冲分压器响应的软件校正
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191909
J. Havunen, J. Hällström
{"title":"Software Corrections for Switching Impulse Voltage Divider Response","authors":"J. Havunen, J. Hällström","doi":"10.1109/CPEM49742.2020.9191909","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191909","url":null,"abstract":"Voltage dividers used for high-voltage switching impulse measurements have always more or less distorted response and their design is challenging. Improving the performance of an existing divider by hardware can be very difficult because the main design principles or used components cannot be changed. Software corrections for improving the performance of impulse dividers are therefore very tempting. This paper describes two different methods to apply software corrections to the output of the voltage divider. Corrections are based on measured properties of the used dividers and the validity of the corrections can be verified with a calibrator or by a comparison. Both corrections improved the divider performance up to reference level.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122828609","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: 2
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