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A voltage device used as high accurate voltage ratio standard 一种用作高精度电压比标准的电压装置
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034879
Tianxiao Yin, B. Liang, Hao Wang, Ruimin Liu
{"title":"A voltage device used as high accurate voltage ratio standard","authors":"Tianxiao Yin, B. Liang, Hao Wang, Ruimin Liu","doi":"10.1109/CPEM.2002.1034879","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034879","url":null,"abstract":"A voltage device based on connecting the voltage units in series-parallel configuration is proposed in this paper. It is similar to the well-known Hamon device (B.V. Hamon, J. Sci. Instr., vol. 31, pp. 450-453, 1954). It can be used to transfer the voltage to its multiple units for calibration of the voltage standard. This type of voltage device can also be used as the proportional arms of a voltage proportional bridge for obtaining the proportional transformation with high accuracy.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126495533","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 measurement system for traceable calibration of power harmonics and flicker analysers 一种可溯源校准电力谐波和闪烁分析仪的测量系统
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034810
G. Hammond, I. Budovsky
{"title":"A measurement system for traceable calibration of power harmonics and flicker analysers","authors":"G. Hammond, I. Budovsky","doi":"10.1109/CPEM.2002.1034810","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034810","url":null,"abstract":"The paper describes a precision measurement system developed at NML for traceable calibration of three-phase instruments measuring harmonics of current up to 16 A, voltage fluctuation and flicker. Current and voltage harmonics up to the 99/sup th/ and fluctuating voltages can be generated and measured with relative uncertainties close to 1/spl times/10/sup -5/.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129999513","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
Polarization contributions of order /spl alpha//sup 2/(Z/spl alpha/)(m/M)E/sub F/ to hyperfine splitting in muonium 序/spl α //sup 2/(Z/spl α /)(m/ m)E/sub F/对介子超细分裂的极化贡献
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034738
M. I. Eides, H. Grotch, V. Shelyuto
{"title":"Polarization contributions of order /spl alpha//sup 2/(Z/spl alpha/)(m/M)E/sub F/ to hyperfine splitting in muonium","authors":"M. I. Eides, H. Grotch, V. Shelyuto","doi":"10.1109/CPEM.2002.1034738","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034738","url":null,"abstract":"We calculate radiative-recoil corrections of order /spl alpha//sup 2/(Z/spl alpha/)(m/M)E/sub F/ to hyperfine splitting in muonium generated by the diagrams with electron and muon polarization loops. The single-logarithmic and nonlogarithmic contributions calculated here improve the theory of hyperfine splitting, and affect the value of the electron-muon mass ratio extracted from the experimental data on the muonium hyperfine splitting.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134084274","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
Interlaboratory comparison using a transport Josephson voltage standard system 使用传输约瑟夫森电压标准系统的实验室间比较
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034888
Y. Tang, S. Kupferman, M. Salazar
{"title":"Interlaboratory comparison using a transport Josephson voltage standard system","authors":"Y. Tang, S. Kupferman, M. Salazar","doi":"10.1109/CPEM.2002.1034888","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034888","url":null,"abstract":"A portable Josephson voltage standard (JVS) system has been used as a transfer standard to make an interlaboratory JVS comparison. The results are compared with an interlaboratory comparison between the same two JVS systems using transport Zeners made at about the same time. The portable JVS improves the uncertainty of the comparison by largely eliminating the problem associated with non-ideal Zener transportability, environmental dependence, and non-linear drift.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134304768","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
Cold atom clocks: status, applications, and perspectives 冷原子钟:状态、应用和前景
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034689
C. Salomon
{"title":"Cold atom clocks: status, applications, and perspectives","authors":"C. Salomon","doi":"10.1109/CPEM.2002.1034689","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034689","url":null,"abstract":"Summary form only given. The ability to cool neutral atoms and trapped ions using laser light has brought a new generation of ultra-stable clocks to existence in the microwave and optical domains. The author introduces the basic concepts, and discuss the main factors contributing to the frequency stability and accuracy of these frequency standards. Some applications are presented of these ultra-stable clocks in fundamental physics such as the search for a possible drift of fundamental constants, tests of general relativity and comparison of distant clocks. The possibility of comparing clocks in various parts of the electromagnetic spectrum using mode-locked femtosecond lasers will lead to dramatic advances in the sensitivity of these tests. The interest in the space environment for cold atom experiments is outlined. Thanks to the reduced gravity in an Earth orbiting satellite, interaction times in the clock can significantly exceed that of fountain clocks on the Earth. Several space missions carrying laser cooled cesium and rubidium clocks as well as hydrogen masers are under development for flying onboard the International Space Station in 2006-2007.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130927529","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
Long term stability of TESLA fused silica 10 pF standards 特斯拉熔融石英10pf标准的长期稳定性
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034868
J. Horský, L. Ripper, J. Horská
{"title":"Long term stability of TESLA fused silica 10 pF standards","authors":"J. Horský, L. Ripper, J. Horská","doi":"10.1109/CPEM.2002.1034868","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034868","url":null,"abstract":"In this paper we describe stability and other parameters of Czech-made 10 pF fused silica capacitors after 30 years of use. These capacitors were made from three types of fused silica and with different technologies.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"209 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133602328","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
Reduction of microwave attenuation in superconducting microstripline using plasma nitridation 等离子体氮化降低超导微带线微波衰减
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034938
S. Park, JinHee Kim, H. Hong, K. Kim
{"title":"Reduction of microwave attenuation in superconducting microstripline using plasma nitridation","authors":"S. Park, JinHee Kim, H. Hong, K. Kim","doi":"10.1109/CPEM.2002.1034938","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034938","url":null,"abstract":"We have been developed a new fabrication process of Josephson junction series array (JJA) by using reactive ion etching (RIE) and a self-aligning technique. A plasma nitridation process is also employed in improving the microwave transmission characteristics by blocking the O/sub 2/ from diffusing into the Nb ground-plane by depositing SiO/sub 2/ dielectric layer using plasma enhanced chemical vapor deposition (PECVD) at substrate temperature of 300/spl deg/C.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123901471","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
Sub-5-ps electrical pulses for the characterization of high-frequency components 5-ps以下的电脉冲用于高频元件的表征
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034755
M. Bieler, M. Spitzer, H. Lecher, G. Hein, U. Siegner
{"title":"Sub-5-ps electrical pulses for the characterization of high-frequency components","authors":"M. Bieler, M. Spitzer, H. Lecher, G. Hein, U. Siegner","doi":"10.1109/CPEM.2002.1034755","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034755","url":null,"abstract":"Presents a method that allows one to launch 3.3 (4.9) ps voltage pulses into coaxial (coplanar) transmission lines. With this technique, high frequency-components can be characterized at frequencies well above 100 GHz.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124583810","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
Improved IEN cryogenic system for AC-DC transfer in the 1 mV range 改进的IEN低温系统在1 mV范围内进行交流-直流转换
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034893
E. Monticone, U. Pogliano, D. Serazio
{"title":"Improved IEN cryogenic system for AC-DC transfer in the 1 mV range","authors":"E. Monticone, U. Pogliano, D. Serazio","doi":"10.1109/CPEM.2002.1034893","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034893","url":null,"abstract":"The paper describes the design and the development of an improved system for AC-DC transfer measurements in the 1 mV range at cryogenic temperature. A new thermal system has been built. The design of a device with two heaters for application in differential configurations is optimized for a more suitable time constant. A second thermometer in the same chip is used as a sensor for the second stage of the temperature control.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124585371","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
Temperature characteristic of Zener reference standards 齐纳标准品的温度特性
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034773
Y. Murayama, H. Nishinaka, Y. Sakamoto, A. Iwasa
{"title":"Temperature characteristic of Zener reference standards","authors":"Y. Murayama, H. Nishinaka, Y. Sakamoto, A. Iwasa","doi":"10.1109/CPEM.2002.1034773","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034773","url":null,"abstract":"We investigated temperature dependencies of Zener-diode voltage reference standards. Some Zeners showed output voltage differences between ac line power and battery operation, and the voltage differences were related to the oven temperature change in the Zeners. A waiting time of five hours was suggested when the Zener was operated by the battery.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115073006","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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