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Systematic-Error Signals in the AC Josephson Voltage Standard: Measurement and Reduction

R. Pinheiro Landim, S.P. Benz, P.D. Dresselhaus, C.J. Burroughs
2008 IEEE Transactions on Instrumentation and Measurement  
We investigate the dominant frequencydependent systematic error signals (SES) in the ac Josephson voltage standard.  ...  We demonstrate that reduction of the SES using various techniques greatly improves agreement between the ac-dc differences of the two arrays and improves the absolute ac voltage accuracy.  ...  ACKNOWLEDGMENTS The authors thank Alain Rüfenacht, Burm Baek, Joseph Kinard, Nicolas Hadacek and Oliver Kieler for valuable discussions, and Norman Bergren for fabrication assistance.  ... 
doi:10.1109/tim.2007.915100 fatcat:lppgszzcpjhwnd7hnw3na32te4

Correction of Systematic Errors Due to the Voltage Leads in an AC Josephson Voltage Standard

P.S. Filipski, J.R. Kinard, T.E. Lipe, Yi-Hua Tang, S.P. Benz
2009 IEEE Transactions on Instrumentation and Measurement  
Very substantial progress has been achieved recently by identifying and reducing the systematic errors, extending the voltage operating range to 300 mV, and extending the frequency range to 100 kHz, [6  ...  INTRODUCTION uring the last twelve years, the quantum-based pulsedriven ac Josephson Voltage Standard (ACJVS) has progressed from a concept to a calibration instrument, [1], [2] .  ...  Model of connections of two arrays showing ground loop created by the dc blocks. Correction of Systematic Errors Due to the Voltage Leads in an AC Josephson Voltage Standard Piotr S.  ... 
doi:10.1109/tim.2008.2008086 fatcat:c4tvpbxl7bfjjh3ztkprs7tuaa

Operation of NIST Josephson array voltage standards

C.A. Hamilton, C. Burroughs, K. Chieh
1990 Journal of Research of the National Institute of Standards and Technology  
, and an assessment of error sources for the NIST-developed Josephson array standard.  ...  This paper begins with a brief discussion of the physical principles and history of Josephson effect voltage standards.  ...  Finally, we acknowledge the fabrication expertise of Frances Lloyd who has fabricated all of the Josephson array devices used at NIST and many other laboratories around the world. References  ... 
doi:10.6028/jres.095.026 pmid:28179776 pmcid:PMC4959396 fatcat:77lba3swcbfgpoz6ysnfsefwxm

Method for Ensuring Accurate AC Waveforms With Programmable Josephson Voltage Standards

Charles J. Burroughs, Alain Rufenacht, Samuel P. Benz, Paul D. Dresselhaus
2013 IEEE Transactions on Instrumentation and Measurement  
Index Terms-Josephson arrays, Josephson device measurement applications, Josephson devices, Josephson voltage standard, measurement standards.  ...  Our goal is to develop an AC standard source that can directly synthesize voltages with the accuracy expected of a quantum-based standard without the use of a thermal voltage converter.  ...  Acknowledgments The authors would like to thank Y. Chong, N. Hadacek, B. Baek, and M. Watanabe for helping develop the stackedjunction fabrication process for our PJVS chips, and B.  ... 
doi:10.1109/tim.2013.2250192 fatcat:4fz3q6mvfrb5bo3w3pn73czu4q

Uncertainty analysis for ac-dc difference measurements with the AC Josephson Voltage Standard

Jason M Underwood
2018 Metrologia  
A detailed analysis of the uncertainties obtained in ac-dc difference measurements with an AC Josephson Voltage Standard (ACJVS) is presented.  ...  In agreement with earlier work, the transmission line is the primary contributor to Type B errors for frequencies above 10 kHz.  ...  Acknowledgments The author would like to thank T. Lipe, N. Shattuck, and S. Cular for valuable discussions related to ac-dc difference, B. Waltrip and N.  ... 
pmid:32863435 pmcid:PMC7450763 fatcat:fcq2tge7lja7lp3hb5af6if24y

The calibration of dc voltage standards at NIST

B.F. Field
1990 Journal of Research of the National Institute of Standards and Technology  
The operational procedures used to compare these voltage standards to NIST voltage standards and to maintain the NIST volt via the ac Josephson effect are discussed.  ...  between the NIST volt and the volt as maintained by a group of standard cells in a client laboratory; and the calibration of client solid-state dc voltage standards at NIST.  ...  This representation is defined in terms of the Josephson constant Kj, the frequency-to-voltage quotient of the ac Josephson effect in superconductors.  ... 
doi:10.6028/jres.095.027 pmid:28179777 pmcid:PMC4959397 fatcat:qvzhbme4wjdgdcnavuill44yle

ac-Josephson-Effect Determination ofeh: A Standard of Electrochemical Potential Based on Macroscopic Quantum Phase Coherence in Superconductors

T. F. Finnegan, A. Denenstein, D. N. Langenberg
1971 Physical Review B  
realization of a voltage standard based on the ac Josephson effect.  ...  The basic measurements in any ac Josephson effect determination of e/h are of frequency and voltage. The voltage measurement is by far the more difficult and entirely determines the accuracy.  ... 
doi:10.1103/physrevb.4.1487 fatcat:lxpg6fq365hrneoj5m6s72bj3a

Realisation of a quantum current standard at liquid helium temperature with sub-ppm reproducibility [article]

Stephen Giblin, Emma Mykkänen, Antti Kemppinen, Pekka Immonen, Antti Manninen, Máté Jenei, Mikko Möttönen, Gento Yamahata, Akira Fujiwara, Masaya Kataoka
2020 arXiv   pre-print
All the measurements are carried out in zero applied magnetic field, and the pump drive signal is a sine wave.  ...  The combination of simple operating conditions with high accuracy demonstrates the possibility that an electron pump can operate as a current standard in a National Measurement Institute.  ...  Two types of on-off cycle are used in this work. In the 'power switching' cycle, the AC drive signal at the entrance gate is turned on and off.  ... 
arXiv:1912.02042v2 fatcat:glmfax5cezcyrjar3tioquu6yu

Details of the 1998 watt balance experiment determining the Planck constant

R. Steiner, D. Newell, E. Williams
2005 Journal of Research of the National Institute of Standards and Technology  
Much of this detail, some historical progression, and a few recent findings have not been included in previous papers reporting the results of this experiment.  ...  edwin.williams@nist.gov mates for the Type B uncertainty contributions to the uncertainty budget.  ...  Beginning in 1980, when the modern version of the balance was being designed and built, they include W. Phillips, G. Jones, W. Tew, R. Elmquist, and V. Bower.  ... 
doi:10.6028/jres.110.003 pmid:27308100 pmcid:PMC4849564 fatcat:uanfmwakhbh7bjptz3dcjluw3q

Electrical resistance standards and the quantum Hall effect

Thomas J. Witt
1998 Review of Scientific Instruments  
The ac techniques used in the determinations of the SI ohm by means of the calculable capacitor are now being applied to accurately link the quantized Hall resistance to the impedance of standard capacitors  ...  Methods of comparing resistance are described; these include bridges based on cryogenic current comparators capable of achieving statistical uncertainties approaching one part in 10 10 in the measurement  ...  ACKNOWLEDGMENTS The author is pleased to thank the colleagues who read and criticized all or portions of the manuscript. They include N. B. Belecki ͑NIST͒, D. A. Blackburn ͑BIPM͒, R. E.  ... 
doi:10.1063/1.1149062 fatcat:igip6zzopvg7dkd6vr55vqrsq4

Pulse-Bias Electronics and Techniques for a Josephson Arbitrary Waveform Synthesizer

Samuel P. Benz, Steven B. Waltman
2014 IEEE transactions on applied superconductivity  
The second bias technique reduces inductance-related error signals at the signal frequency and should reduce systematic errors for waveforms with frequencies greater than 1 MHz.  ...  Intrinsically accurate voltage waveforms synthesized with the quantized pulses from Josephson junctions were first demonstrated in 1996.  ...  ACKNOWLEDGMENT The authors would like to thank P. D. Dresselhaus for many years of collaboration and assistance in developing the pulsedrive instrumentation.  ... 
doi:10.1109/tasc.2014.2338326 fatcat:aggu2w6tjrcpdcdvxyqnbspcwu

The quantum vector digital voltmeter of INMETRO

Waldemar G Kuerten Ihlenfeld, Regis P Landim
2016 Journal of Physics, Conference Series  
The paper describes the quantum vector digital voltmeter developed at INMETRO, based on a programmable Josephson voltage synthesizer.  ...  The system employs digital regulation for phase-and frequency synchronization of signals, is fully automated and allows calibration of ac sources and analog-to-digital converters with uncertainties bearing  ...  The smaller the differential voltage, the smaller is the effect of ADC errors on the accuracy of voltage measurements.  ... 
doi:10.1088/1742-6596/733/1/012079 fatcat:7f2ks4x2uvfu5jdlqirotqp5i4

The NIST Johnson Noise Thermometry System for the Determination of the Boltzmann Constant

Nathan E. Flowers-Jacobs, Alessio Pollarolo, Kevin J. Coakley, Adam C. Weis, Anna E. Fox, Horst Rogalla, Weston L. Tew, Samuel P. Benz
2017 Journal of Research of the National Institute of Standards and Technology  
In this paper, we describe in detail the JNT system and uncertainty components associated with the most recent National Institute of Standards and Technology (NIST) determination of the Boltzmann constant  ...  We present new measurements of the correlated noise of the 4 K on-chip resistors in the quantum-accurate, pseudorandom, voltage-noise source, which we used to estimate the correlated, frequency-dependent  ...  Acknowledgments We are grateful for the advice and support we received from our current collaborators: Paul Dresselhaus, Jifeng Qu  ... 
doi:10.6028/jres.122.046 pmid:34877109 pmcid:PMC7339765 fatcat:zxeviir33zfqnm72ncrdmjrfmy

Review of Josephson Waveform Synthesis and Possibility of New Operation Method by Multibit Delta–Sigma Modulation and Thermometer Code for Its Further Advancement

Nobu-hisa Kaneko, Michitaka Maruyama, Chiharu Urano, Shogo Kiryu
2011 Japanese Journal of Applied Physics  
In this paper, we review the development of Josephson arbitrary waveform synthesizers based on the two types of Josephson junction array and their distinctive driving methods.  ...  A method of AC waveform synthesis with quantum-mechanical accuracy has been developed on the basis of the Josephson effect in national metrology institutes, not only for its scientific interest but its  ...  Summary and Future Plan We have reviewed the method of AC waveform synthesis using an AC programmable Josephson voltage standard (AC-PJVS) and a pulse-driven Josephson voltage standard (PD-JVS) by considering  ... 
doi:10.1143/jjap.51.010116 fatcat:xd3n6zj3bvcclmlg2ikwcozqz4

Application of the Josephson effect in electrical metrology

B. Jeanneret, S. P. Benz
2009 The European Physical Journal Special Topics  
for dc and ac voltage measurements.  ...  The following article reviews the history and present status of the research and development for Josephson voltage standards.  ...  With further improvements and reduction in systematic errors, the noise thermometry system may contribute to the redefinition of Boltzmann's constant, because it offers an electronic approach that is distinctly  ... 
doi:10.1140/epjst/e2009-01050-6 fatcat:4zujtawrdjchlbzryqcwoi3kj4
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