Stable arbitrary waveform generator as a transfer standard for ADC calibration

Nissilä, J.; Šíra, Martin; Lee, J.; Ozturk, Tezgul Coskun; Arifovic, Mehedin; Aguilar, Javier Diaz de; Lapuh, R.; Behr, R.

doi:10.1109/cpem.2016.7540454

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…An arbitrary reference source of ac voltage and current is required at the industrial user lab as shown in figure 2(b). This source should be highly stable (for example see [39,40]). However, in our proposed scheme the sources in the traceability chain can be calibrated and monitored against the quantum-traceable digitizer, significantly relaxing the accuracy and stability requirements on the reference sources.…”

Section: Ac Voltage and Current Sourcementioning

confidence: 99%

A method for using Josephson voltage standards for direct characterization of high performance digitizers to establish AC voltage and current traceability to SI

Ireland

Reuvekamp²,

Williams³

et al. 2022

Meas. Sci. Technol.

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A method for traceability to SI for ac voltage and current based on high performance digitizers is presented. In contrast to the existing thermal-based methods, the proposed method utilizes direct traceability to quantum-based waveforms via the use of Josephson voltage systems. This allows not only a simplification of the traceability chain and reduced measurement times but also offers the potential for analysis of the ac voltage and current waveform spectral content, a feature which is not possible using thermal methods. Scaling of current and voltage is achieved by the use of current shunts and resistive voltage dividers respectively. Target operating ranges are up to 1 A and 100 V with a frequency range up to 1 kHz for both. The corresponding target uncertainty for this traceability route is 1 μVV-1 and 2 μAA-1 up to frequencies of 1 kHz. The traceability chain is described and various components are characterized to validate their suitability for this task. It is demonstrated that these uncertainty targets can be met under certain conditions. The use of multi-tone calibration waveforms is investigated to further reduce measurement time. An uncertainty analysis method based on simulation using real component performance data is demonstrated.

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Section: Ac Voltage and Current Sourcementioning

confidence: 99%

A method for using Josephson voltage standards for direct characterization of high performance digitizers to establish AC voltage and current traceability to SI

Ireland

Reuvekamp²,

Williams³

et al. 2022

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…In addition, the requirements to use common software for the AC quantum voltage infrastructures will also be defined. The new design is focused on the currently most available systems, the Programmable Josephson Voltage Standard (PJVS) and it is based on an ultra stable Digital-to-Analog Converter (DAC) [8] directly corrected by a PJVS to form a quantum traceable waveform generator. The new design will cover the most demanding applications, calibrating ADCs at μV/V accuracy level, i.e.…”

Section: New Designmentioning

confidence: 99%

Towards the propagation of AC quantum voltage standards, the EMPIR ACQ-PRO Project

Caballero

Aguilar

Behr

et al. 2017

18th International Congress of Metrology

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Abstract. The ACQ-PRO is an EMPIR Project, jointly founded by the European Union and the participating countries. The overall objective of the project is to provide trans-European access to AC quantum voltage standards, to increase research capacity and to establish the basis for future collaboration between metrological institutes working on AC quantum voltage standards. With this in mind, project tasks were designed. This paper describes the objectives and the first outcomes of the project. The most remarkable achievement are the results of experimental research visits working on ACQ voltage standards. The design of a new AC quantum voltage standards easier to integrate and operate that with the BIPM participation will be validated by a pioneering intercomparison. Besides a Good Practice Guide on the use of AC quantum voltage standards is under preparation. Two working groups on ACQ voltage standards and on cryogenics applications will be created within the activities of the project. Finally, the participant Institutes are establishing the strategic plans to ensure the coordinated developing of future AC Quantum Standards.

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Josephson voltage standards as toolkit for precision metrological applications at PTB

Behr

Bauer

Herick

et al. 2022

Meas. Sci. Technol.

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60 years after the discovery of the Josephson effect, electrical DC voltage calibrations are routinely performed worldwide - mostly using automated Josephson voltage standards (JVS). Nevertheless, the field of electrical quantum voltage metrology is still propagating towards AC applications. In the past 10 years the fabrication of highly integrated arrays containing more than 50 000 or even 300 000 junctions has achieved a very robust level providing highly functional devices. Such reliable Josephson arrays are the basis for many novel applications mainly focussing on precision ac measurements for signal frequencies up to 500 kHz. Two versions of quantum AC standards are being employed. Programmable Josephson voltage standards (PJVS), based on series arrays divided into subarrays, reach amplitudes up to 20 V and usually are used as quantum voltage reference in measurement systems. Pulse driven arrays reach amplitudes up to 1 V or even 4 V and are typically used as Josephson arbitrary waveform synthesizers (JAWS). This paper summarizes the principal contributions from PTB to the present state of Josephson voltage standards with particular focus on developments for precision metrological applications and our proof-of-concept demonstrations.

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Stable arbitrary waveform generator as a transfer standard for ADC calibration

Cited by 8 publications

References 4 publications

A method for using Josephson voltage standards for direct characterization of high performance digitizers to establish AC voltage and current traceability to SI

A method for using Josephson voltage standards for direct characterization of high performance digitizers to establish AC voltage and current traceability to SI

Towards the propagation of AC quantum voltage standards, the EMPIR ACQ-PRO Project

Josephson voltage standards as toolkit for precision metrological applications at PTB

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