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Conference Digest Conference on Precision Electromagnetic Measurements最新文献

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Precise dielectric measurement of low loss materials at 60 GHz 60 GHz低损耗材料的精确介电测量
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034693
M. Afsar, A. Moonshiram, Yong Wang
{"title":"Precise dielectric measurement of low loss materials at 60 GHz","authors":"M. Afsar, A. Moonshiram, Yong Wang","doi":"10.1109/CPEM.2002.1034693","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034693","url":null,"abstract":"The permittivity and loss-tangent of a number of low-loss materials have been measured using the open-resonator system by two methods - the full cavity-length variation technique and the frequency variation technique. While excellent agreement and consistency in results were obtained by both methods, the measured results showed that the cavity-length technique is a little more accurate with a less-noise resonance peak profile. An extensive error analysis is made for the first time for various open resonator measurement methods for a number of specimens of different thickness.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"12 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":"117034727","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
Type B uncertainty evaluation of IEN CSF1 primary frequency standard iencsf1主频率标准的B类不确定度评定
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034909
F. Levi, L. Lorini, D. Calonico, A. Godone
{"title":"Type B uncertainty evaluation of IEN CSF1 primary frequency standard","authors":"F. Levi, L. Lorini, D. Calonico, A. Godone","doi":"10.1109/CPEM.2002.1034909","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034909","url":null,"abstract":"We report the first accuracy evaluation of the new IEN Cs fountain primary frequency standard. Although preliminary, and performed in absence of a resident H-maser, all the principal effects are evaluated at few units of 10/sup -15/ level. Differential measurements and TWSTFT remote comparisons were used to supply in the absence of the H-maser.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"42 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":"121948135","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
New results in optical frequency measurement using a femtosecond laser 飞秒激光光学频率测量的新成果
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034900
G. Rovera, J. Zondy, O. Acef, F. Ducos, J. Wallerand, J. Knight, P. Russel
{"title":"New results in optical frequency measurement using a femtosecond laser","authors":"G. Rovera, J. Zondy, O. Acef, F. Ducos, J. Wallerand, J. Knight, P. Russel","doi":"10.1109/CPEM.2002.1034900","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034900","url":null,"abstract":"We report recent results obtained at the BNM-LPTF with the new frequency measurement chain based on a femtosecond laser. An I/sub 2/ stabilized Nd:YAG optical frequency standard, developed at the BNM-INM as a national standard for the \"mise en pratique\" of the definition of the meter has been measured for the first time.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"57 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":"125951307","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
Characteristics of binary Josephson arrays for a programmable voltage standard 用于可编程电压标准的二进制约瑟夫森阵列的特性
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034945
O. Chevtchenko, E. Houtzager, H. E. van den Brom
{"title":"Characteristics of binary Josephson arrays for a programmable voltage standard","authors":"O. Chevtchenko, E. Houtzager, H. E. van den Brom","doi":"10.1109/CPEM.2002.1034945","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034945","url":null,"abstract":"Within the Euromet project no. 626, I-V curves of two non-hysteretic Josephson arrays (of SINIS and externally shunted SIS types) are studied at NMi as a function of microwave power at the drive frequency of 76.275 GHz and temperature 4 K. A stable operation at about 1.1 V is registered.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"13 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":"128597255","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
Polyphase synthesizer for unlike-impedance intercomparison system 非阻抗互比较系统的多相合成器
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034777
L. Callegaro, V. D’Elia, E. Bava, G. Galzerano, C. Svelto
{"title":"Polyphase synthesizer for unlike-impedance intercomparison system","authors":"L. Callegaro, V. D’Elia, E. Bava, G. Galzerano, C. Svelto","doi":"10.1109/CPEM.2002.1034777","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034777","url":null,"abstract":"The system for four-terminal pair intercomparison of unlike impedances of IEN has now been provided with a new direct-digital synthesis generator, having multiple outputs, isolation among the channels, and high amplitude and frequency stability. Experimental results in the new and old configuration are shown and compared.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"11 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":"128648213","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: 9
Intercomparison measurements of direct voltage from 10 kV to 200 kV between NRC, Canada and JEMIC, Japan 加拿大NRC与日本JEMIC之间10kv至200kv直接电压测量的比较
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034720
T. McComb, E. So, D. Bennett, K. Shimizu, K. Shishido, M. Miyakoda, H. Hirayama
{"title":"Intercomparison measurements of direct voltage from 10 kV to 200 kV between NRC, Canada and JEMIC, Japan","authors":"T. McComb, E. So, D. Bennett, K. Shimizu, K. Shishido, M. Miyakoda, H. Hirayama","doi":"10.1109/CPEM.2002.1034720","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034720","url":null,"abstract":"Two 100 kV JEMIC dividers were used as travelling standards in comparison tests against standard dividers maintained at JEMIC and at NRC. The dividers could be used independently or combined to provide a travelling standard rated at 200 kV. The voltage measured by each system is taken as the product of the ratio of that system and the reading on the corresponding multimeter. The difference between the same voltage measured on both systems simultaneously was always less than /spl plusmn/40 /spl mu/V/V.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"46 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":"129298102","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
Determination of the frequency dependence of capacitance standards with ceramic dielectrics 用陶瓷介质测定电容标准的频率依赖性
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034864
M. Klionsky, Y. Semenov, A. Moodley
{"title":"Determination of the frequency dependence of capacitance standards with ceramic dielectrics","authors":"M. Klionsky, Y. Semenov, A. Moodley","doi":"10.1109/CPEM.2002.1034864","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034864","url":null,"abstract":"The procedure for determination of the frequency dependence (FD) of ceramic capacitance standards characteristic is developed. It is based on application of air capacitance standards with calculable FD, a special summation device and a step calibration method. Measuring instruments are used that allow to compare the capacitance of single capacitors with nominally equal sum capacitance of their combinations. FD of ceramic capacitance standards are determined in the range 100 pF-1 /spl mu/F at frequencies from 50 Hz to 1 MHz. The measurement uncertainty is 0.01-0.1% (k=2).","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"22 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":"130724492","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
Formation and distortions of the ultrashort pulse train spectrum broadened in tapered fiber 锥形光纤中超短脉冲串频谱的形成和畸变
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034903
S. Bagayev, S. Chepurov, V. Denisov, V. M. Klementyev, D. Kolker, I. Korel, S. Kuznetsov, Y. Matyugin, V. Pivtsov, V. F. Zakharyash, T. Birks, W. Wadsworth, P. Russell
{"title":"Formation and distortions of the ultrashort pulse train spectrum broadened in tapered fiber","authors":"S. Bagayev, S. Chepurov, V. Denisov, V. M. Klementyev, D. Kolker, I. Korel, S. Kuznetsov, Y. Matyugin, V. Pivtsov, V. F. Zakharyash, T. Birks, W. Wadsworth, P. Russell","doi":"10.1109/CPEM.2002.1034903","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034903","url":null,"abstract":"We propose a theoretical description and give experimental results of the ultrashort pulse train spectral broadening in tapered fibers. A multi-peak spectral structure due to the effect of self-phase modulation was obtained. Phase and amplitude fluctuations were investigated. It is shown that stability of intermode beats remains after propagation through the tapered fiber.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"22 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":"130839061","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 new architecture for high-accuracy admittance measuring systems 高精度导纳测量系统的新架构
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034778
F. Cabiati, V. D’Elia
{"title":"A new architecture for high-accuracy admittance measuring systems","authors":"F. Cabiati, V. D’Elia","doi":"10.1109/CPEM.2002.1034778","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034778","url":null,"abstract":"The architecture of traditional coaxial systems for highly accurate admittance comparison has been redesigned taking into account the features of active-compensated multi-coaxial connection structures previously developed and investigated. When applied to the conventional two-port transformer bridge, the new approach makes the parasitic cable effects negligible, and allows comparison of four-port standards even in parallel connection.","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"10 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":"128771493","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 development and evaluation of coaxial ac resistors at CSIR-NML CSIR-NML同轴交流电阻器的研制与评价
Conference Digest Conference on Precision Electromagnetic Measurements Pub Date : 2002-06-16 DOI: 10.1109/CPEM.2002.1034861
S. Moodley, W. van den Berg, J. Bohacek, R. Sedlácek
{"title":"The development and evaluation of coaxial ac resistors at CSIR-NML","authors":"S. Moodley, W. van den Berg, J. Bohacek, R. Sedlácek","doi":"10.1109/CPEM.2002.1034861","DOIUrl":"https://doi.org/10.1109/CPEM.2002.1034861","url":null,"abstract":"CSIR-NML is in the process of developing ac bridges to realize capacitance from a quantum Hall resistance system. This process involves the development of resistors with calculable frequency dependence. We describe the development and evaluation of a calculable coaxial ac resistor that is based on the design by Haddad [1969].","PeriodicalId":121798,"journal":{"name":"Conference Digest Conference on Precision Electromagnetic Measurements","volume":"21 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":"125479768","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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