Digital generator assisted impedance bridge

Corney, A.C.

doi:10.1109/tim.2003.810050

Cited by 20 publications

(10 citation statements)

References 5 publications

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“…On this base, AC generators were developed [7,8]. In these generators the DC voltage acts as an input signal, and the output signal is a piecewise approximated sinusoidal voltage (abbreviated -DDS) [8,9]. DDS were used to create various AC bridges [9,10].…”

Section: Introductionmentioning

confidence: 99%

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AC phase controlled bridges – ground and main properties

Surdu¹,

Surdu

2021

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This work describes the new approach to the improving of the accuracy of the bridge impedance measurements. By this approach, the bridge balance in a wide impedance range uses the control of the phases of the aggregate of the cardinal signals only. The optimal structure and algorithm of the control of this aggregate of the cardinal signals is determined. Using this approach accurate impedance meters with low size and price are developed. In the limit, this approach gets us the possibility to develop fully integrated impedance meters. Report shortly describes universal impedance meters with phase control, their balance and calibration algorithms.

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Section: Introductionmentioning

confidence: 99%

“…In these generators the DC voltage acts as an input signal, and the output signal is a piecewise approximated sinusoidal voltage (abbreviated -DDS) [8,9]. DDS were used to create various AC bridges [9,10]. In these bridges, amplitude and phase of the balancing signal were directly adjusted using DAC.…”

Section: Introductionmentioning

confidence: 99%

AC phase controlled bridges – ground and main properties

Surdu¹,

Surdu

2021

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“…A procedure to measure impedances using data-acquisition boards and genetic algorithms has been developed [4]. In addition, a prototype wide-range four-terminal-pair universal impedance bridge was constructed in order to test ideas for balancing procedures and noise performance [5]. Moreover, the quantum Hall effect which provides the quantized Hall resistance is used as a primary standard of impedance [6,7].…”

Section: Introductionmentioning

confidence: 99%

Measurement of capacitance and resistance using two perfectly synchronized voltage sources

Raouf

Kim

2015

Measurement

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“…Last time the bridges based on the digital signals synthesis [1][2][3][4][5][6][7][8][9] are widely used. The approach to the synthesis of two voltages sources with very accurate ratio (10 -7 or less) based on the phase control was described in [10].…”

Section: Introductionmentioning

confidence: 99%

Wide range bridge-comparator for accurate impedance measurements on audio- and low frequencies

Surdu¹,

Surdu

2014

29th Conference on Precision Electromagnetic Measurements (CPEM 2014)

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The accurate (uncertainty -better than 1 ppm, sensitivity -better than 0.1 ppm on main ranges) bridge-comparator, balanced by phase control only, is described. Bridge is aimed to measure any impedance in wide dynamic range (from 10 -7 to 10 17 Ohm). It operates in wide frequency range (from 10 -2 to 10 kHz). Bridge balancing and uncertainty correction use the variational method and measurements of unbalance signals.Bridge compares the impedances with arbitrary phase angle, i.

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Digital generator assisted impedance bridge

Cited by 20 publications

References 5 publications

AC phase controlled bridges – ground and main properties

AC phase controlled bridges – ground and main properties

Measurement of capacitance and resistance using two perfectly synchronized voltage sources

Wide range bridge-comparator for accurate impedance measurements on audio- and low frequencies

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