Precision Three-Stage 1000 V/50 Hz Inductive Voltage Divider

Small, G.W.; Budovsky, I.; Gibbes, A.M.; Fiander, J.R.

doi:10.1109/tim.2004.843377

Cited by 36 publications

(10 citation statements)

References 5 publications

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“…Requirements for the common-mode rejection ratio can be improved, specifically when the verification and calibration of the IVD at a 1-10 nV maximum resolution of the lock-in amplifier within the medium frequency range at the upper level of 10√2 V of the compared voltage dynamic range [28]- [30].…”

Section: The Common-mode Rejection Ratio For Ivdsmentioning

confidence: 99%

Lock-in amplifier with a high common-mode rejection ratio in the range of 0.02 to 100 kHz

et al. 2019

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Section: The Common-mode Rejection Ratio For Ivdsmentioning

confidence: 99%

Lock-in amplifier with a high common-mode rejection ratio in the range of 0.02 to 100 kHz

et al. 2019

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“…where Z in and Z out refer to the in-and output stage impedance respectively. For the ideal case where all component values are perfectly nominal, missing the output capacitance by only 1 pF, will lead to a division ratio deviation of about 4000 mV/V at 1 MHz according to the equations (5) and (6).…”

Section: Voltage Divider Designmentioning

confidence: 99%

“…These voltage buffers have been made in different varieties intended for different loads. Budovsky et al have also constructed a few resistive as well as inductive voltage dividers for ac-dc transfer and power metrology [6,7]. Another buffer has been constructed together with a 120:4 resistive voltage divider by Lei et al [8], where they have characterized it using a Fluke 5790A.…”

Section: Introductionmentioning

confidence: 99%

Characterization of high-precision resistive voltage divider and buffer amplifier for ac voltage metrology

Karlsen

Lind

Malmbekk

et al. 2019

Int. J. Metrol. Qual. Eng.

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A high-precision voltage buffer and a 10:1 resistive voltage divider have been constructed for use in ac voltage and electrical power metrology. Long-term stability of the buffer's dc response has been demonstrated by two dc sweeps performed 20 days apart, with best-fit linearized gain varying less than 1 μV/V. The absolute ac gain has been measured using a high-precision digital multimeter for 10 Hz and 1 kHz with results consistent with dc within 5 μV/V. This value agrees with the characterization of ac–dc difference using thermal converters from different producers with a variety of resistance for various voltages from 1 V to 5 V. The ac–dc difference was further characterized better than 40 μV/V for the same voltages up to 100 kHz and better than 100 μV/V for 3 V at 1 MHz. Absolute ac gain and ac–dc difference has also been measured for the voltage divider and buffer combination from 10 V to 50 V, with similar agreement up to 1 kHz. The ac–dc difference from 10 Hz to 100 kHz of this combination shows an agreement well within 30 μV/V in this entire voltage span with a total response not exceeding 125 μV/V. This make the voltage divider and buffer combination suitable for sampling electrical powers for a wide range of voltages.

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“…Since the product of K 3 and K 4 is high enough, the current is shunted by an electronic circuit completely in theory according to (4). A small residual equivalent lead wire resistance exists.…”

Section: Elimination Of Lead Wire Voltagementioning

confidence: 99%

“…In the application of frequency below 100 Hz, IVD should contain high permeability core, which has large cross section to reduce error of voltage ratio caused by the small Q factor of magnetizing winding. A separately excited three-stage IVD has been designed to overcome the small Q factor problem for voltages at frequencies from 50 to 1000 Hz [4], but it has a complicated structure. A kind of electronic IVD is introduced in this paper to increase input impedance of ratio winding resulting in decrease in ratio error.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Balance Four-Terminal Resistance Bridge

Lai

Shi

2015

IEEE Trans. Instrum. Meas.

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A kind of quasi-balance four-terminal ac resistance bridge has been constructed. The electronic inductive voltage divider provides high accurate voltage ratios for the bridge at a wide frequency range from 20 Hz to 10 kHz. The Wagner network with electronic circuit containing followers and amplifiers makes the voltage ratio unaffected by internal loading of ratio winding. Amplifiers are used to eliminate voltage drop on the lead wire connecting two resistors. Sampling method is used to measure the complex voltage ratio. The bridge can measure resistances from 1 to 1 M . The optimal uncertainty for resistance of 100 and 1 k is 2 × 10 −7 at 1 kHz.Index Terms-Bridge circuits, impedance measurement, lead voltage elimination, quasi-balance, resistance measurement, sampling method, voltage dividers.

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Precision Three-Stage 1000 V/50 Hz Inductive Voltage Divider

Cited by 36 publications

References 5 publications

Lock-in amplifier with a high common-mode rejection ratio in the range of 0.02 to 100 kHz

Lock-in amplifier with a high common-mode rejection ratio in the range of 0.02 to 100 kHz

Characterization of high-precision resistive voltage divider and buffer amplifier for ac voltage metrology

Quasi-Balance Four-Terminal Resistance Bridge

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