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

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Effective Focal Area Dimension Optimization of Shear-Horizontal Point-Focusing EMAT Using Orthogonal Test Method 用正交试验法优化剪切-水平点聚焦EMAT有效焦面积
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/cpem49742.2020.9191861
Hongyu Sun, Lisha Peng, Shen Wang, Qing Wang, Wei Zhao, Songling Huang
{"title":"Effective Focal Area Dimension Optimization of Shear-Horizontal Point-Focusing EMAT Using Orthogonal Test Method","authors":"Hongyu Sun, Lisha Peng, Shen Wang, Qing Wang, Wei Zhao, Songling Huang","doi":"10.1109/cpem49742.2020.9191861","DOIUrl":"https://doi.org/10.1109/cpem49742.2020.9191861","url":null,"abstract":"To overcome the shortcomings of low energy conversion efficiency of electromagnetic acoustic transducers (EMATs), point-focusing shear horizontal (PFSH) wave EMAT is used to focus the wave energy into a specific area. Many factors will affect the capability of the focusing transducer, and in addition to considering the signal intensity, the detection accuracy is also required to be investigated. Specifically, to simplify the test process, we use the orthogonal test method to study the effect of different influence parameters on signal intensity and focal area dimensions. Seven factors are selected and three results are determined in the test. To enable higher signal intensity and smaller focal area dimensions, it is necessary to consider the influence of various factors on the PFSH-EMAT focusing performance. The signal intensity of the test with optimized parameters combination at the focal point is nearly 144% higher than the average of all the tests, $l_{fd}$ decreased by 38% and $w_{fd}$ decreased by 51%.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"48 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":"131695139","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: 3
Main Results of GULFMET Supplementary Comparison for AC Active and Reactive Energy GULFMET交流有功和无功能量补充比较的主要结果
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191733
O. Velychko, S. Karpenko, H. Çayci, J. Bartholomew
{"title":"Main Results of GULFMET Supplementary Comparison for AC Active and Reactive Energy","authors":"O. Velychko, S. Karpenko, H. Çayci, J. Bartholomew","doi":"10.1109/CPEM49742.2020.9191733","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191733","url":null,"abstract":"Main results participating laboratories which are measuring the same electric active and reactive energy travelling standard of low-frequency 50/53 Hz energy in a framework of GULFMET.EM-S5 supplementary comparison of energy are presented. The paper describes some problems concerning the evaluation of travelling standard drift effect and its further influence on evaluation reference value during a comparison. Degrees of equivalence and expanded uncertainties of participants are set. Also $E_{n}$ number was calculated for each participant GULFMET.EM-S5 supplementary comparison of energy with the aim of determining data consistency.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"5 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":"130882905","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 fast negative impedance converter for JAWS load compensation 用于JAWS负载补偿的快速负阻抗变换器
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191932
J. Underwood, Stephen Pfeiffer, Geoffrey Palo
{"title":"A fast negative impedance converter for JAWS load compensation","authors":"J. Underwood, Stephen Pfeiffer, Geoffrey Palo","doi":"10.1109/CPEM49742.2020.9191932","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191932","url":null,"abstract":"For accurate realization of the ac volt, the Josephson Arbitrary Waveform Synthesizer must not be overly loaded by the electrical network in which it is used. The interaction between its output inductance and stray capacitance in the network can yield significant errors. Such errors are compounded for low-impedance devices, such as thermal transfer standards (TTS). This paper describes a negative impedance converter that has been designed to handle such loads up to 100 kHz. We discuss the motivation for the device, its design, and present some initial ac-ac difference measurements with a TTS.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"11 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":"134502799","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
A Digital Heterodyne 2-150 kHz Measurement Method 数字外差2- 150khz测量方法
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191862
P. Wright, D. Ritzmann
{"title":"A Digital Heterodyne 2-150 kHz Measurement Method","authors":"P. Wright, D. Ritzmann","doi":"10.1109/CPEM49742.2020.9191862","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191862","url":null,"abstract":"This paper describes a new method for measurements of signals in the 2–150 kHz frequency range, as required to support the regulation of conducted emissions on the power grid. The digital method is based on heterodyning, decimation and multi resolution analysis.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"17 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":"133657847","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
Calibration of Electrical Instruments under Non-sinusoidal Conditions at NRC Canada 加拿大NRC非正弦条件下电气仪器的校准
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191765
B. Djokic, H. Parks
{"title":"Calibration of Electrical Instruments under Non-sinusoidal Conditions at NRC Canada","authors":"B. Djokic, H. Parks","doi":"10.1109/CPEM49742.2020.9191765","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191765","url":null,"abstract":"The paper describes a recent development of a system for calibration of electrical instruments with harmonics measurement capability, such as revenue meters and power analyzers, under non-sinusoidal test conditions at National Research Council (NRC) Canada. The improvements implemented with respect to an earlier NRC calibration system are aimed at increasing the calibration accuracy and frequency range.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"6 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":"133683601","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
Design of a New Dual-mode Torque Standard Machine That Operates on The Principle of the Kibble Balance 一种新型双模力矩标准机的设计
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191819
Myeonghyeon Kim
{"title":"Design of a New Dual-mode Torque Standard Machine That Operates on The Principle of the Kibble Balance","authors":"Myeonghyeon Kim","doi":"10.1109/CPEM49742.2020.9191819","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191819","url":null,"abstract":"As a result of decades of research on the Kibble balance, the definition of the kilogram has changed from the international prototype kilogram (IPK) to Planck's constant beginning in 2019. Therefore, standards for mass-derived units such as force and torque can also be achieved via a new approach that differs from conventional methods. Conventional torque standard can calibrate only the static torque amount. Recently, demand has been increasing for dynamic torque standards. Thus far, there has been no traceability to the dynamic torque standard. In this paper, a new dual-mode torque standard machine is proposed and developed.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"119 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":"133424068","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
Incremental Buildup Calibration Method of Inductive Voltage Divider 电感分压器的增量累积校准方法
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191690
Jian Feng, Yang Pan, Lei Lai, Xianlin Pan, Jiangtao Zhang
{"title":"Incremental Buildup Calibration Method of Inductive Voltage Divider","authors":"Jian Feng, Yang Pan, Lei Lai, Xianlin Pan, Jiangtao Zhang","doi":"10.1109/CPEM49742.2020.9191690","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191690","url":null,"abstract":"An incremental buildup calibration method of inductive voltage divider was introduced, which comprised two steps, the zero voltage measurement procedure and the section voltage measurement procedure. The reference transformer is connected in series with an auxiliary IVD to compare voltage with the output of IVD to be calibrated. The influence of leakage current of both the reference transformer and the detection transformer can be removed by this method.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"44 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":"130254331","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
Theory and Demonstration of 1-port Vector Network Analyzer Calibration Technique Using Three Lines 一端口矢量网络分析仪三线校准技术的理论与演示
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9205153
R. Kishikawa, M. Horibe
{"title":"Theory and Demonstration of 1-port Vector Network Analyzer Calibration Technique Using Three Lines","authors":"R. Kishikawa, M. Horibe","doi":"10.1109/CPEM49742.2020.9205153","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9205153","url":null,"abstract":"This paper shows a new calibration technique for 1-port vector network analyzers and describes a demonstration of its operation. The proposed technique requires no assumption for the theory and standard devices. Hence, precise measurements are considered possible. In the demonstration, a load termination was measured at 65 GHz. The measurement result was consistent with that by the open-short-load calibration method.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"18 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":"114086791","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
Software-assisted phase locking technique for Programmable Josephson Voltage Standard 可编程约瑟夫森电压标准的软件辅助锁相技术
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191728
P. Reuvekamp, H. Malmbekk, J. Ireland, E. Breakenridge, Jonathan M. Williams
{"title":"Software-assisted phase locking technique for Programmable Josephson Voltage Standard","authors":"P. Reuvekamp, H. Malmbekk, J. Ireland, E. Breakenridge, Jonathan M. Williams","doi":"10.1109/CPEM49742.2020.9191728","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191728","url":null,"abstract":"In this paper, a novel phase-locking technique is used to interface a Programmable Josephson Voltage Standard (PJVS) with a Keysight U8930B Performance Audio Analyzer. This technique uses both hardware and software to phase-lock the PJVS to the analyzer via a master clock. Both long term stability and nulling measurements were performed on the analyzer. The long term stability results indicated that the lowest Allan deviation was achieved after 500 s of sampling. The long term stability provides a springboard for the nulling measurements. The nulling measurements allows the possibility for the U8903B to be used as a reliable transfer of the ac quantum voltage standard.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"30 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":"114387889","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 EMPIR Project GIQS: Graphene Impedance Quantum Standard EMPIR项目GIQS:石墨烯阻抗量子标准
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191743
L. Callegaro, V. D’Elia, M. Marzano, N. T. M. Tran, M. Ortolano, J. Kučera, K. Pierz, S. Bauer, M. Kruskopf, Yefei Yin, Y. Pimsut, F. Schopfer, O. Thévenot, B. Jeanneret, F. Overney, T. Bergsten, K. Cedergren, A. Manninen, J. Nissilä, A. Michon, Sivinee Sawatdiaree, D. Chae
{"title":"The EMPIR Project GIQS: Graphene Impedance Quantum Standard","authors":"L. Callegaro, V. D’Elia, M. Marzano, N. T. M. Tran, M. Ortolano, J. Kučera, K. Pierz, S. Bauer, M. Kruskopf, Yefei Yin, Y. Pimsut, F. Schopfer, O. Thévenot, B. Jeanneret, F. Overney, T. Bergsten, K. Cedergren, A. Manninen, J. Nissilä, A. Michon, Sivinee Sawatdiaree, D. Chae","doi":"10.1109/CPEM49742.2020.9191743","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191743","url":null,"abstract":"GIQS: Graphene Impedance Quantum Standard is a Joint Research Project of the European Metrology Programme for Innovation and Research (EMPIR). The project objective is to combine novel digital impedance measurement bridges with graphene-based ac quantum Hall resistance standards in a simplified cryogenic environment, to achieve simple, user-friendly quantum impedance standards suitable for primary realisation of impedance units in national metrology institutes, calibration centers, and the industry.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"8 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":"114961342","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: 3
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