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

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A New Method for Precision Calibration of Resistive Voltage Dividers up to 1000 V 一种1000v以下电阻分压器精度标定的新方法
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191795
I. Budovsky
{"title":"A New Method for Precision Calibration of Resistive Voltage Dividers up to 1000 V","authors":"I. Budovsky","doi":"10.1109/CPEM49742.2020.9191795","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191795","url":null,"abstract":"The paper presents a new method for direct voltage calibration of resistive voltage dividers at voltages up to 1000 V. A combination of a high-stability inductive voltage divider and a resistive voltage divider with stable ac-dc difference of voltage ratio are used to transfer the dc voltage ratio from a Josephson voltage standard to the divider under test. The method allows full automation and has a potential to achieve measurement uncertainties of the order of $0.1 mumathrm{V}/mathrm{V}$.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"85 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":"132848592","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
Trilateral South American Project: A Reference System for Measuring Electric Power up to 100 kHz – Current Status 三边南美项目:测量100千赫以下电力的参考系统-现状
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191853
G. Kyriazis, L. Di Lillo, D. Slomovitz, R. Iuzzolino, E. Yasuda, L. Trigo, R. Souza, H. Laiz, E. Afonso
{"title":"Trilateral South American Project: A Reference System for Measuring Electric Power up to 100 kHz – Current Status","authors":"G. Kyriazis, L. Di Lillo, D. Slomovitz, R. Iuzzolino, E. Yasuda, L. Trigo, R. Souza, H. Laiz, E. Afonso","doi":"10.1109/CPEM49742.2020.9191853","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191853","url":null,"abstract":"Three countries in South America are jointly developing a reference system for measuring electric power up to 100 kHz. The objective is the construction of three similar measuring systems, one for each institute. The current status of the development of its modules is described here. This project will contribute to provide calibration services in measuring ranges still not covered by the three institutes both in ac-dc transfer and in electric power.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"45 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":"132657547","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
NCSLI/CPEM Program Chairs and Organizing Committee NCSLI/CPEM项目主席和组织委员会
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/cpem49742.2020.9191687
{"title":"NCSLI/CPEM Program Chairs and Organizing Committee","authors":"","doi":"10.1109/cpem49742.2020.9191687","DOIUrl":"https://doi.org/10.1109/cpem49742.2020.9191687","url":null,"abstract":"","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"49 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":"131695837","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
Improvements on Laser Interferometer in Calculable Capacitor at NIM NIM可计算电容激光干涉仪的改进
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191763
Jianbo Wang, C. Yin, J. Qian, C. Shi, Lu Huang, Yan Yang, Mingyu Zhang
{"title":"Improvements on Laser Interferometer in Calculable Capacitor at NIM","authors":"Jianbo Wang, C. Yin, J. Qian, C. Shi, Lu Huang, Yan Yang, Mingyu Zhang","doi":"10.1109/CPEM49742.2020.9191763","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191763","url":null,"abstract":"This paper illustrates the improvements on the laser interferometer in the calculable capacitor at nim, including the fiber coupling optical layout, mechanical drift and aging monitor, and parasitic interference reduction. Using the new fiber coupling, we can more flexible to change the laser source without break the beam layout. And the reduction of parasitic interference is more than one order in amplitude with the benefit of antireflection coatings.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"110 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":"115433079","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 Detection of Power Quality Disturbances Based on Generalized S-transform 基于广义s变换的电能质量扰动检测
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191829
Chengbin Liang, Zhaosheng Teng, Jianmin Li, Fangxing Liu, Qing He
{"title":"The Detection of Power Quality Disturbances Based on Generalized S-transform","authors":"Chengbin Liang, Zhaosheng Teng, Jianmin Li, Fangxing Liu, Qing He","doi":"10.1109/CPEM49742.2020.9191829","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191829","url":null,"abstract":"A modified generalized S transform is designed to extract the parameters of power quality disturbances such as starting and ending time, amplitude, harmonic frequencies more accurately in this paper. The demands of power quality detection is better met by controlling the Gaussian window function. Finally, the simulation results show that the excellent time-frequency performance of this method.","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":"115491331","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
Calibration of Sensitive Ammeters Using a Noiseless Electron Pump 使用无噪声电子泵校正灵敏电流表
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191724
S. Giblin, G. Yamahata, A. Fujiwara, M. Kataoka
{"title":"Calibration of Sensitive Ammeters Using a Noiseless Electron Pump","authors":"S. Giblin, G. Yamahata, A. Fujiwara, M. Kataoka","doi":"10.1109/CPEM49742.2020.9191724","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191724","url":null,"abstract":"We compare an electron pump and an ultrastable low-noise current amplifier (ULCA) as reference current sources for calibrating a high-gain current preamplifier at pA-level currents. Using the electron pump on a quantized current plateau, the current noise is dominated by the device under test, whereas using the ULCA, the larger ULCA noise is the biggest contribution. In a 20-second measurement at a nominal current of 3.2 pA, the preamplifier gain is resolved with a relative type A uncertainty of $5times 10^{-5}$ using the pump, and $2times 10^{-4}$ using the ULCA.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"4 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":"115738632","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
Primary Standard of Attenuation in the Frequency Range of 1 kHz to 10 MHz 1千赫至10兆赫频率范围内衰减的主要标准
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191824
A. Widarta
{"title":"Primary Standard of Attenuation in the Frequency Range of 1 kHz to 10 MHz","authors":"A. Widarta","doi":"10.1109/CPEM49742.2020.9191824","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191824","url":null,"abstract":"Primary standard of attenuation in the frequency range of 1 kHz to 10 MHz is developed to meet the demands in recent EMC regulations that require traceability of measurements to national standards. A null detection system with an IVD as a reference standard is constructed to allow attenuation at 1 kHz, 9 kHz, and 10 kHz to be measured accurately by comparing to the voltage ratio of the IVD. Attenuation in the frequency range of 100 kHz to 10 MHz is measured in the same procedure after being down converted to 1 kHz using heterodyne detection technique. A double step technique is introduced in measurements at 9 kHz and 10kHz to keep high accuracy results due to increasing of the IVD uncertainties. Higher dynamic range is obtained by installing toroidal ferrite chokes in the system to minimize common-mode leakages in the kilohertz frequency range. The measurement capability is expected to be larger than 60 dB with the expanded uncertainty range starting from 0.0016 dB.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"182 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":"124577748","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
Applications of the Josephson based spectrum analyzer 基于约瑟夫森的频谱分析仪的应用
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191890
L. Palafox, J. Herick, S. Bauer, M. Kraus, O. Kieler, R. Behr
{"title":"Applications of the Josephson based spectrum analyzer","authors":"L. Palafox, J. Herick, S. Bauer, M. Kraus, O. Kieler, R. Behr","doi":"10.1109/CPEM49742.2020.9191890","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191890","url":null,"abstract":"The Josephson spectrum analyzer exploits the programmable frequency spectrum in a Josephson Arbitrary Waveform Generator (JAWS) to measure a signal. The waveform to be measured is copied by the JAWS system. A conventional spectrum analyzer is used as a multi frequency null detector when the waveform and its JAWS copy are cancelled. We report the comparison of the Josephson spectrum analyzer with the classical approach used to measure harmonics present in waveforms, using a state of the art notch filter and a low noise amplifier. We also report measurements of the theoretically predicted-quantization harmonics, at −129 dBc, in a JAWS sinewave when a first order delta sigma modulator is used.","PeriodicalId":373216,"journal":{"name":"2020 Conference on Precision Electromagnetic Measurements (CPEM)","volume":"31 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":"114790763","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
The BIPM Kibble Balance: improvements and measurements BIPM基布尔平衡:改进和测量
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191744
H. Fang, F. Bielsa, A. Kiss, M. Stock
{"title":"The BIPM Kibble Balance: improvements and measurements","authors":"H. Fang, F. Bielsa, A. Kiss, M. Stock","doi":"10.1109/CPEM49742.2020.9191744","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191744","url":null,"abstract":"This paper summarizes the various improvements to and measurements carried out with the BIPM Kibble balance for realizing the definition of the mass unit in terms of the Planck constant. Measurement uncertainty has been significantly reduced by a factor of four. Mass measurement of a 1 kg Pt/Ir artefact was carried out during three periods in 2019. The mass of the artefact was measured in vacuum with a standard uncertainty of about $50 mumathrm{g}$. Efforts are underway to further reduce measurement uncertainty which is dominated by the misalignment and the electrical measurements.","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":"128839082","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
Uncertainty of ROCOF calculated by means of Monte Carlo method 用蒙特卡罗方法计算了roof的不确定度
2020 Conference on Precision Electromagnetic Measurements (CPEM) Pub Date : 2020-08-01 DOI: 10.1109/CPEM49742.2020.9191892
M. Sira
{"title":"Uncertainty of ROCOF calculated by means of Monte Carlo method","authors":"M. Sira","doi":"10.1109/CPEM49742.2020.9191892","DOIUrl":"https://doi.org/10.1109/CPEM49742.2020.9191892","url":null,"abstract":"The measurement of Rate of Change of Frequency (ROCOF) was simulated to conduct a full test of an advanced ROCOF estimation algorithm. Whole measurement chain of a transducer and digitizer was simulated and an uncertainty of ROCOF estimation has been calculated using Monte Carlo Method. The selected ROCOF estimation algorithm was based on a series of boxcar filters. The results showed out the most important uncertainty contributions and estimation errors of the selected algorithm.","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":"125526348","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
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