Characterization of Metrological Grade Analog-to-Digital Converters Using a Programmable Josephson Voltage Standard

Overney, F.; Rüfenacht, Alain; Braun, Jean‐Pierre; Jeanneret, B.; Wright, P.S.

doi:10.1109/tim.2011.2113950

Cited by 65 publications

(44 citation statements)

References 13 publications

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“…The used NI 5922 sampler shows gain and nonlinearity errors (Integral nonlinearities (INL) [14]), which are determined by sampling a known PJVS stepwise waveform. Since a differential measurement regime is used, these errors are significantly reduced [10].…”

Section: A Sampler Gain and Nonlinearitiesmentioning

confidence: 99%

An AC Josephson Voltage Standard up to the Kilohertz Range Tested in a Calibration Laboratory

Schubert

Starkloff

Lee

et al. 2015

IEEE Trans. Instrum. Meas.

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This paper describes the development of an automated ac quantum voltmeter toward a turnkey system, which can be used for calibration of common dc and ac voltage standards. The setup was tested in an accredited commercial calibration laboratory to characterize Fluke 5700A calibrators and voltage standards. The measured voltage in dependence on various parameters is presented in the range of dc to 2 kHz with amplitudes up to 10 V. The uncertainty components are discussed, and the system relevant Type B uncertainty for ac voltage calibrations is 0.15 µV/V. The contribution of the leakage current is investigated in detail and found to be notable for frequencies above 1 kHz due to parasitic capacitances. The combined measurement uncertainty for calibration ac voltages is less than 0.62 µV/V (k = 1 and 40 Hz-1 kHz) and is limited by the noise of the calibrator. Comparison measurements at Physikalisch-Technische Bundesanstalt have been done and confirm the system reproducibility.Index Terms-AC Josephson metrology, ac quantum voltmeter, calibration, calibrator Fluke 5700A, Josephson voltage standard, programmable Josephson voltage standard (PJVS).

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Section: A Sampler Gain and Nonlinearitiesmentioning

confidence: 99%

An AC Josephson Voltage Standard up to the Kilohertz Range Tested in a Calibration Laboratory

Schubert

Starkloff

Lee

et al. 2015

IEEE Trans. Instrum. Meas.

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“…With sampling rates applicable to the calibration of bridge amplifiers ( s ≪500 kHz), the resolution is 24 bits. The PXI-5922 digitiser card was thoroughly analysed in terms of its dynamic properties, precision, and metrological suitability [6], [7]. Additionally, automated calibration procedures exist for this acquisition card at PTB (Section 6), as it is widely used in the Realization of Acceleration working group.…”

Section: Data Acquisitionmentioning

confidence: 99%

“…From the acquired signal, the root mean square (RMS) value was derived for each frequency point of the calibration. The digitiser card shows a characteristic transfer function, which could be compensated for as it is only dependent on the sampling rate [6], [7]. Figure 5 shows the calibration results for a sampling rate of 50 kS/s (the same rate used for the calibration measurements).…”

Section: Calibration Of the Digitiser Channelsmentioning

confidence: 99%

Setup for the dynamic calibration of bridge amplifiers from DC up to 10 kHz

2019

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<p class="Abstract">Measurements of mechanical quantities are often carried out with transducers with a bridge output. The output signals are conditioned using bridge amplifiers. If dynamically changing quantities are going to be measured traceably, the bridge amplifier must be calibrated dynamically.</p>This paper describes a dynamic bridge amplifier calibration setup based on the new PTB dynamic bridge standard. The calibration is carried out by the synchronous sampling of the bridge amplifier output voltage and a reference signal provided by the calibrated dynamic bridge standard. The dynamic bridge standard enables calibrations in a frequency range from DC (static calibration) up to 10 kHz. An overview of the different measurement uncertainty contributions is given, and the first measurement results show good agreement with a previously established measurement setup.

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“…a 0 V noiseless DC input voltage. In some cases, excess noise is dependent on the DC input level [9] [16]; this effect is not reflected in the basic effective resolution metrics, but may be given separately in the form of plots, tables, etc.…”

Section: Equivalent Resolutionmentioning

confidence: 99%

Analog-to-digital conversion beyond 20 bits

Beev

2018

2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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Analog-to-digital converters with resolution exceeding 20 bits are widely available today. They exist in two forms-flexible laboratory instruments and monolithic integrated circuits. We present an overview of application fields for such digitizers, the hardware architectures that implement them, and their limitations. We review the state of the art by comparing the best-performing devices reported in scientific literature, as well as those available commercially. Our focus is particularly on integrated circuit solutions, and among our aims are the disambiguation of the multiple performance metrics in use, as well as the presentation of a clear perspective on basic performance tradeoffs. Finally, we provide a discussion on the future prospects for highresolution digitizing measurement systems.

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Characterization of Metrological Grade Analog-to-Digital Converters Using a Programmable Josephson Voltage Standard

Cited by 65 publications

References 13 publications

An AC Josephson Voltage Standard up to the Kilohertz Range Tested in a Calibration Laboratory

An AC Josephson Voltage Standard up to the Kilohertz Range Tested in a Calibration Laboratory

Setup for the dynamic calibration of bridge amplifiers from DC up to 10 kHz

Analog-to-digital conversion beyond 20 bits

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