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Proceedings of Conference on Precision Electromagnetic Measurements Digest最新文献

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A Josephson voltage standard in multichip technology 多芯片技术中的约瑟夫森电压标准
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333397
P. Gutmann, F.X. Hebrank, E. Vollmer, J. Niemeyer
{"title":"A Josephson voltage standard in multichip technology","authors":"P. Gutmann, F.X. Hebrank, E. Vollmer, J. Niemeyer","doi":"10.1109/CPEM.1994.333397","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333397","url":null,"abstract":"A Josephson voltage standard is described which exactly meets industrial needs and is cost minimized. A new frequency measurement strategy and a new layout of the Josephson tunnel junction monolithic are introduced. Commercial instrumentation is replaced by monolithic components. Semiconductor and superconductor monolithics are hybrid integrated in multichip technology.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129234149","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 in the realization of the quantized-Hall resistance standard at OFMET OFMET量化霍尔电阻标准实现的改进
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333267
B. Jeckelmann, W. Fasel, B. Jeanneret
{"title":"Improvements in the realization of the quantized-Hall resistance standard at OFMET","authors":"B. Jeckelmann, W. Fasel, B. Jeanneret","doi":"10.1109/CPEM.1994.333267","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333267","url":null,"abstract":"A measurement system based on a cryogenic current comparator has been developed at the Swiss Federal Office of Metrology (OFMET) to maintain the electrical unit of resistance. Standard resistors in the range of 1 /spl Omega/ to 10 k/spl Omega/ can be measured against the quantized Hall resistance with a precision on the order of one part in 10/sup 9/(ppb). This system improves the measurement accuracy of OFMET in this range by one order of magnitude.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123954724","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: 20
Accurate far-infrared rotational frequencies of carbon monoxide in excited vibrational states 一氧化碳在激发态的精确远红外旋转频率
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333386
F. Stroh, K. Evenson
{"title":"Accurate far-infrared rotational frequencies of carbon monoxide in excited vibrational states","authors":"F. Stroh, K. Evenson","doi":"10.1109/CPEM.1994.333386","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333386","url":null,"abstract":"Pure rotational transitions of carbon monoxide in the excited vibrational states /spl upsi/=1 and /spl upsi/=2 of the ground electronic state have been measured in the 0.3 to 4.0 THz spectral region. Accurate center frequencies of 50 transitions with J values up to J=33 as well as improved sets of rotational constants are reported.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116167292","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
One-way time transfer using geostationary satellites: evolution of the experiment on the satellite TDF2 利用地球静止卫星进行单向时间传递:TDF2卫星试验的演变
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333281
F. Meyer
{"title":"One-way time transfer using geostationary satellites: evolution of the experiment on the satellite TDF2","authors":"F. Meyer","doi":"10.1109/CPEM.1994.333281","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333281","url":null,"abstract":"The paper presents the results obtained on common-view time transfer measurements using the TV satellite TDF2 between four French laboratories. Different methods have been used to eliminate the influence of the satellite residual motion with a final precision that can reach 10 ns. The accuracy has been assessed using an orbit provided by the CNES, that also tested orbit restitution based on the time measurements.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121917928","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
Development of a fast-reversed-dc current source 一种快速反向直流电流源的研制
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333344
H. Sasaki, K. Takahashi, M. Klonz
{"title":"Development of a fast-reversed-dc current source","authors":"H. Sasaki, K. Takahashi, M. Klonz","doi":"10.1109/CPEM.1994.333344","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333344","url":null,"abstract":"A fast-reversed-dc current source has been developed for the purpose of evaluating the ac-dc transfer differences due to thermoelectric effect of thermal converters. By use of a novel switching scheme, the measurement error due to the increase of the reversing frequency was reduced to less than 1 ppm up to 10 kHz.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131448744","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: 4
Automated quantum Hall resistance standard 自动量子霍尔电阻标准
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333297
B. Schumacher
{"title":"Automated quantum Hall resistance standard","authors":"B. Schumacher","doi":"10.1109/CPEM.1994.333297","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333297","url":null,"abstract":"For precision quantized Hall resistance measurements quantum Hall effect samples have to be checked according to the CCE-guidelines. To perform these checks an automated measuring system is described, which is able to examine and characterize various samples. With these measurements a calibration of a precision 10 k/spl Omega/ resistance standard is obtained with an uncertainty of better than 5/spl middot/10/sup -8/ (1 /spl sigma/) using a long-scale digital multimeter.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131539469","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 1993 atomic mass tables and beyond 1993年的原子质量表及以后的
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333339
A. Wapstra
{"title":"The 1993 atomic mass tables and beyond","authors":"A. Wapstra","doi":"10.1109/CPEM.1994.333339","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333339","url":null,"abstract":"With a Penning trap technique applied to even short lived (few s) radioactive nuclides, masses of many isotopes of half a dozen elements have been determined with a precision of about 10 keV or better, which is sufficient for nuclear physics purposes. With time of flight methods applied to undecelerated particles (in the region below mass number 80) from bombarded targets, but also with more classical methods, masses of many nuclides far from beta stability have been improved, or measured for the first time. It is expected that extension of these methods will lead to further extensions and improvements. Information is given on the way in which the mass values in the tables have been derived from many thousands of measurements of masses and of nuclear reaction and decay energies.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131544095","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
Frequency stabilization of a diode laser using the Zeeman shift of saturated absorption spectra of the /sup 87/Rb atom 利用/sup 87/Rb原子饱和吸收光谱的塞曼位移稳定化二极管激光器的频率
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333379
H. Lee, S. Park, S. Yang
{"title":"Frequency stabilization of a diode laser using the Zeeman shift of saturated absorption spectra of the /sup 87/Rb atom","authors":"H. Lee, S. Park, S. Yang","doi":"10.1109/CPEM.1994.333379","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333379","url":null,"abstract":"Saturated absorption spectra of the /sup 87/Rb atom under the magnetic field of several tens of gauss were observed with a diode laser oscillating at 780 nm, and Zeeman splittings of the 5/sup 2/P/sub 3/2/ excited state of the atom were numerically calculated to obtain the spectra theoretically. Both of the spectra agreed well, and a Zeeman-shifted absorption line was used for the frequency stabilization of the diode laser.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129371953","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
Influence of the device-width on the accuracy of quantization in the integer quantum Hall effect 整数量子霍尔效应中器件宽度对量化精度的影响
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333427
B. Jeanneret, B. Jeckelmann, H. Buhlmann, R. Houdré, M. Ilegems
{"title":"Influence of the device-width on the accuracy of quantization in the integer quantum Hall effect","authors":"B. Jeanneret, B. Jeckelmann, H. Buhlmann, R. Houdré, M. Ilegems","doi":"10.1109/CPEM.1994.333427","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333427","url":null,"abstract":"Using a cryogenic current comparator bridge (CCC), several Hall samples of different width were compared to check whether size effect may affect the accuracy of quantization in the integer quantum Hall effect (QHE). In the range from 1 mm down to 10 /spl mu/m we did not observe any width dependence of the Hall resistance. The difference between the quantized Hall resistances of the i=2 plateaus of the various samples was found to be smaller than the measurement uncertainty (typically at the ppb-level).<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127855906","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: 21
The 1s Lamb shift of hydrogen-like very heavy ions measured at an electron cooler 在电子冷却器上测量的类氢重离子的1s兰姆位移
Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-06-27 DOI: 10.1109/CPEM.1994.333168
H. Beyer, D. Liesen, A. Gallus, P. Indelicato, G. Menzel, T. Stoehlker, R. Deslattes, F. Bosch, M. Jung, O. Klepper, R. Moshammer, K. Beckert, H. Eickhoff, B. Franzke, H. Reich, F. Nolden, P. Spadtke, M. Steck
{"title":"The 1s Lamb shift of hydrogen-like very heavy ions measured at an electron cooler","authors":"H. Beyer, D. Liesen, A. Gallus, P. Indelicato, G. Menzel, T. Stoehlker, R. Deslattes, F. Bosch, M. Jung, O. Klepper, R. Moshammer, K. Beckert, H. Eickhoff, B. Franzke, H. Reich, F. Nolden, P. Spadtke, M. Steck","doi":"10.1109/CPEM.1994.333168","DOIUrl":"https://doi.org/10.1109/CPEM.1994.333168","url":null,"abstract":"Spontaneous capture of free cooling electrons by bare high-Z ions leads to the emission of X-rays. The distinctive features of this new X-ray source for precision spectroscopy of high-Z few-electron systems are demonstrated. They enable a determination of the 1s Lamb shift of hydrogenlike very heavy ions.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133798676","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: 25
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