Development of a PJVS based primary AC power standard

Ihlenfeld, W. G. Kurten; Landim, Regis Pinheiro; Franco, Ana Maria Ribeiro; Debatin, Rosane Moreira

doi:10.1109/cpem.2016.7540499

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…However, the AC ripple effect of the filter cannot be ignored when extending the frequency range for sampling measurements beyond tens of kilohertz [15,20].…”

Section: Introductionmentioning

confidence: 99%

Differential sampling of AC waveforms based on a programmable Josephson voltage standard using a high-precision sampler

Kim¹,

Cho²,

Solve³

2022

Metrologia

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A high-precision sampler, Fluke 8588A multimeter in the sampling mode, was utilised to perform differential sampling of AC waveforms with a programmable Josephson voltage standard. The systematic error on the differential sampling, induced by the inherent voltage-response characteristics and built-in low-pass filter of the sampler, was estimated. Experimental results and numerical simulations revealed that the sampler could be used for reliable differential sampling of AC waveforms at frequencies up to several kilohertz, with an appropriate number of the voltage steps per the waveform period, when the input bandwidth was set to 3 MHz. In addition, the sampler was compared to an integrating sampler, Keysight 3458A, now widely used for differential sampling. At 62.5 Hz, a key frequency in the future on-site key comparison of the differential sampling on AC voltage, the difference in RMS-amplitude values obtained by the differential sampling using the two different samplers is approximately 150 nV/V due to the systematic error caused by the limited bandwidth of 150~kHz for the integrating sampler.

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“…However, the AC ripple effect of the filter cannot be ignored when extending the frequency range for sampling measurements beyond tens of kilohertz [15,20].…”

Section: Introductionmentioning

confidence: 99%

Differential sampling of AC waveforms based on a programmable Josephson voltage standard using a high-precision sampler

Kim¹,

Cho²,

Solve³

2022

Metrologia

View full text Add to dashboard Cite

show abstract

Measurement configurations for differential sampling of AC waveforms based on a programmable Josephson voltage standard: effects of sampler bandwidth on the measurements

et al. 2020

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A measurement setup for differential sampling of AC waveforms based on a programmable Josephson voltage standard, with an integrating sampler, Keysight 3458, and a Δ-Σ analogue-to-digital converter, NI PXI-5922, is described. The system operates in several circuit configurations with different synchronization and triggering schemes. In particular, the focus is on how the filters implemented in the samplers affect sampling measurements. Numerical simulations on the frequency response characteristics of low-pass and finite impulse response filters for the samplers in differential sampling were performed, and the RMS amplitude of the fundamental for waveforms generated from an AC source in a voltage range of 1 V ≤ V ≤ 7.07 V and a frequency range of 40 Hz ≤ f ≤ 1.02 kHz was measured. The RMS amplitudes measured with the different samplers coincided within a few parts in 107 at frequencies below 100 Hz. However, the difference between the amplitudes increased with frequency, mainly due to the dramatic change of the value obtained with the integrating sampler. The difference reached up to −27 µV/V at 1.02 kHz. This feature is inferred to originate from the difference in the bandwidths for the two samplers. The stability of output waveforms for an AC source, APx-555, which could serve as a transfer standard in the framework of an on-site comparison of two independent differential sampling setups, is evaluated.

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Development of a PJVS based primary AC power standard

Cited by 2 publications

References 11 publications

Differential sampling of AC waveforms based on a programmable Josephson voltage standard using a high-precision sampler

Differential sampling of AC waveforms based on a programmable Josephson voltage standard using a high-precision sampler

Measurement configurations for differential sampling of AC waveforms based on a programmable Josephson voltage standard: effects of sampler bandwidth on the measurements

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