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On-site calibration system for isolation current transformers 隔离电流互感器现场标定系统
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5545013
E. Mohns
{"title":"On-site calibration system for isolation current transformers","authors":"E. Mohns","doi":"10.1109/CPEM.2010.5545013","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5545013","url":null,"abstract":"An on-site calibration system for three-phase isolation current transformers is described. It is based on precise power comparators which are shipped to the customer. Measurements can be done at test currents up to 120 A. The measurement uncertainties of the self-calibrating measurement system are in the order of 0.005 % for the ratio error and 0.01 crad for the phase displacement at power frequencies.","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128416767","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
Absolute refractometry using helium 使用氦的绝对折射法
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5543634
T. Badr, S. Azouigui, J. Wallerand, P. Juncar
{"title":"Absolute refractometry using helium","authors":"T. Badr, S. Azouigui, J. Wallerand, P. Juncar","doi":"10.1109/CPEM.2010.5543634","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5543634","url":null,"abstract":"This paper describes our project of an optical refractometer. The targeted accuracy for air index measurement is below 10−8. It is based on an optical resonator whose mechanical distortion as a function of pressure will be calibrated using helium gas.","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132251762","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
A modified technique for the calibration of a current-comparator-based high voltage capacitance bridge and its comparison between KRISS and NRC 一种基于电流比较器的高压电容桥校正方法及其与NRC的比较
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5543413
A. Faisal, J. Jung, Eddy So
{"title":"A modified technique for the calibration of a current-comparator-based high voltage capacitance bridge and its comparison between KRISS and NRC","authors":"A. Faisal, J. Jung, Eddy So","doi":"10.1109/CPEM.2010.5543413","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5543413","url":null,"abstract":"A modified technique for calibrating both the capacitance ratio and dissipation factor (DF) dials of a current-comparator-based high voltage capacitance bridge (CCB-HVCB) has been developed at KRISS. The capacitance ratio and DF dials are calibrated, respectively, in the ratio range from 1/1 to 100/1 and in DF range from 10 × 10−6 to 1 × 10−1. From the calculated and measured values of the corresponding dial balanced readings, the errors in the capacitance ratio an DF dial readings can be derived. This modified calibration technique has been implemented on a commercial version of a NRC developed CCB-HVCB. The comparison results of the calibration performed at KRISS and NRC will be presented and discussed.","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133081731","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
The progress of joule balance in NIM 焦耳平衡在NIM中的研究进展
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5543653
Z. Zhang, Q. He, Z. Li, Y. Lu, J. Zhao, B. Han, C. Li, S. Li, Y. Fu
{"title":"The progress of joule balance in NIM","authors":"Z. Zhang, Q. He, Z. Li, Y. Lu, J. Zhao, B. Han, C. Li, S. Li, Y. Fu","doi":"10.1109/CPEM.2010.5543653","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5543653","url":null,"abstract":"The precise measurement of Planck Constant h to establish a kind of quantum mass standard is an important but very difficult work. The Joule Balance method, for the same purpose but different from Watt Balance method, is going on in NIM for three years. The principle and progress are described.","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133062778","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: 11
Rubidium atomic clock with drift compensation 带漂移补偿的铷原子钟
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5544397
L. Trigo, D. Slomovitz
{"title":"Rubidium atomic clock with drift compensation","authors":"L. Trigo, D. Slomovitz","doi":"10.1109/CPEM.2010.5544397","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5544397","url":null,"abstract":"This paper shows the results of an automatic system that compensates drifts of rubidium atomic clocks, comparing to GPS. This leads to high stability in large time and low noise in short time.","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128993604","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: 8
Heterodyne interferometric displacement measurement in magnetic energy balance 磁能量天平中外差干涉式位移测量
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5544593
Liqiong Zhang, Yan Li, Zhen Liu
{"title":"Heterodyne interferometric displacement measurement in magnetic energy balance","authors":"Liqiong Zhang, Yan Li, Zhen Liu","doi":"10.1109/CPEM.2010.5544593","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5544593","url":null,"abstract":"NIM's Magnetic Energy Balance (ME balance) relates the Planck constant to the redefinition of the kilogram using the equivalence between mechanical and electrical energies. According to the principle of ME balance, the most important parameter is the displacement of the moving coil in the uniform and radial magnetic field. This paper analyzes the requirement of uncertainty of the displacement measurement based on ME balance equation, and elaborates the details of the displacement measurement apparatus for the moving coil including three-laser heterodyne interferometer. Preliminary experimental results are also given in this paper.","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133973093","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 method to correct inductive voltage dividers error caused by capacitances between winding and screen 一种校正电感分压器绕组与屏间电容误差的方法
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5543427
Zhao Jianting, He Qing, L. Yunfeng
{"title":"A method to correct inductive voltage dividers error caused by capacitances between winding and screen","authors":"Zhao Jianting, He Qing, L. Yunfeng","doi":"10.1109/CPEM.2010.5543427","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5543427","url":null,"abstract":"Distributed shunt impedances and leakage impedances in the windings of inductive voltage dividers (IVDs) cause the major components of ac voltage ratio errors, and these two kinds of errors had been well investigated from both theory and experiments. The winding -to-screen capacitances of IVDs can also introduce small but significant ratio error. A theoretical analysis result for this kind of error has been obtained, and a method to correct this kind of error has been presented.","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122352020","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
Multi-frequency quadrature bridge for use in ac QHR measurement 用于交流QHR测量的多频正交电桥
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5544373
A. Domae, Y. Nakamura
{"title":"Multi-frequency quadrature bridge for use in ac QHR measurement","authors":"A. Domae, Y. Nakamura","doi":"10.1109/CPEM.2010.5544373","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5544373","url":null,"abstract":"This study presents the designs of a multi-frequency quadrature bridge that enables standard capacitors to be calibrated at a measurement frequency of 1.592 kHz based on the ac quantized Hall resistance (ac QHR).","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127864192","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
Study on a passive resistive fan attentuation network 无源电阻式风扇衰减网络的研究
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5544768
Liu Na, He Xiaobing, Wang Dahua
{"title":"Study on a passive resistive fan attentuation network","authors":"Liu Na, He Xiaobing, Wang Dahua","doi":"10.1109/CPEM.2010.5544768","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5544768","url":null,"abstract":"A new passive variable attenuation network with Fan-like shape was described. The characteristics of a fan-like resistive attenuation network were compared with those of Tee attenuation network and PI attenuation network. There are many advantages for this Fan attenuation network, such as output impedance matching input impedance, wide attenuation range and easier manufacture resistor values.","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127910195","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
Hyperfine structure of molecular-iodine absorption spectroscopy at 561nm 561nm处分子碘吸收光谱的超精细结构
CPEM 2010 Pub Date : 2010-06-13 DOI: 10.1109/CPEM.2010.5544925
Tao Yang, Jianping Cao, Ye Li, Z. Fang, Chunqing Gao, E. Zang
{"title":"Hyperfine structure of molecular-iodine absorption spectroscopy at 561nm","authors":"Tao Yang, Jianping Cao, Ye Li, Z. Fang, Chunqing Gao, E. Zang","doi":"10.1109/CPEM.2010.5544925","DOIUrl":"https://doi.org/10.1109/CPEM.2010.5544925","url":null,"abstract":"An 1123-nm single-frequency laser with 1-W output power has been made by home, and 10-mW output power double frequency at 561nm is obtained. The modulation transform spectroscopy is used to scan the hyperfine structure lines of molecular iodine absorption spectroscopy transitions at 561nm. Four transition spectroscopy bands of <sup>127</sup>I<inf>2</inf> are observed, and transitions of P(58)22−1 and R(62)22−1 are discussed to be references of 561-nm <sup>127</sup>I<inf>2</inf> optical frequency standard.","PeriodicalId":222495,"journal":{"name":"CPEM 2010","volume":"1151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121447918","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
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