AC–DC Current Shunts and System for Extended Current and Frequency Ranges

Filipski, P.S.; Boecker, Michael

doi:10.1109/tim.2006.876535

Cited by 42 publications

(19 citation statements)

References 8 publications

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“…All these uncertainties are inherently lower than those reported in this paper for direct ac current measurement, which includes additional uncertainty components for current shunts dc current calibration and long term stability of their resistance. Nevertheless, results confirm findings in [1] and [2] that shorter crossbars provide for better high frequency response of the smaller current coaxial current shunts.…”

Section: E Available State Of the Artsupporting

confidence: 88%

“…In [1] and [2], comparable current shunt designs are reported. However, they were constructed and evaluated only as an ac-dc transfer standards and not as an absolute ac current measuring devices.…”

Section: E Available State Of the Artmentioning

confidence: 97%

“…A most accurate current measurements in the frequency band from 10 Hz to 100 kHz are available through the measurement of current ac-dc difference, using latest designs of coaxial current shunts [1], [2]. By evaluating current ac-dc difference, dc resistance, long term dc resistance stability, temperature coefficient and loading effects, a direct measurement of ac current from 10 mA to 20 A was proposed in [3], achieving the uncertainties below 80 A/A in frequency range from 10 Hz up to 30 kHz.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and improvements of precision coaxial current shunts for direct measurement of ac current

Lapuh

Pinter

Voljc

et al. 2011

2011 IEEE International Instrumentation and Measurement Technology Conference

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Coaxial current shunts for currents from 10 mA to 20 A have been constructed. They have been calibrated for ac/dc current difference at frequencies up to 30 kHz. A lumped element model was made for each shunt, from which a frequency response and input impedance were derived. Comparison to actual measured frequency response and measured input impedance results show good agreement of the developed model.

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Section: E Available State Of the Artsupporting

confidence: 88%

Section: E Available State Of the Artmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Analysis and improvements of precision coaxial current shunts for direct measurement of ac current

Lapuh

Pinter

Voljc

et al. 2011

2011 IEEE International Instrumentation and Measurement Technology Conference

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“…The proposed system employed several cage-type ac shunts [7], [8], each with a different rated current. As shown in Fig.…”

Section: A Ac Shuntmentioning

confidence: 99%

Characterization of High-Accuracy, Wideband Transconductance Amplifiers up to 100 kHz

Kon

Yamada

2014

IEEE Trans. Instrum. Meas.

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A highly precise and accurate system comprising several ac shunts and an inductive voltage divider (IVD) is proposed for characterizing high-accuracy, wideband transconductance amplifiers (TCAs). Frequency characterization of the shunts and the IVD confirms the wideband (up to 100 kHz) performance of the proposed system. Evaluation of two TCAs up to 100 kHz with the proposed system reveals frequency-, current-, and load-dependent properties as well as phase shifts between the input voltage and the output current. The results for the load dependence show that the load differences have a limited impact on the phase shifts up to 10 kHz.

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“…The current flows from the input plate equally over the bars to the parallel connected resistors on the output and returns over the other side of the bars. On the output the voltage drop is measured with thermal converter [1].…”

Section: Introductionmentioning

confidence: 99%