Comparator offset error suppression in stochastic converters used in a watt-hour meter

Pejic, Dragan; Urekar, Marjan; Vujičić, Vladimir; Avramov-Zamurovic, Svetlana

doi:10.1109/cpem.2010.5545089

Cited by 7 publications

(1 citation statement)

References 5 publications

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“…Expressions 6, (8) and 10 , and 2-input multiplier can be replaced with S-input multiplier, thus being adjusted for measurement of the mean of multiplier output as follows:…”

Section: Principle Of Digital Stochastic Measurement Using 2-bit Flasmentioning

confidence: 99%

Measurement of definite integral of sinusoidal signal absolute value third power using digital stochastic method

et al. 2017

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In this paper a special case of digital stochastic measurement of the third power of definite integral of sinusoidal signal's absolute value, using 2-bit AD converters is presented. This case of digital stochastic method had emerged from the need to measure power and energy of the wind. Power and energy are proportional to the third power of wind speed. Anemometer output signal is sinusoidal. Therefore an integral of the third power of sinusoidal signal is zero. Two approaches are proposed for the third power calculation of the wind speed signal. One approach is to use absolute value of sinusoidal signal (before AD conversion) for which there is no need of multiplier hardware change. The second approach requires small multiplier hardware change, but input signal remains unchanged. For the second approach proposed minimal hardware change was made to calculate absolute value of the result after AD conversion. Simulations have confirmed theoretical analysis. Expected precision of wind energy measurement of proposed device is better than 0,00051% of full scale.

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“…Expressions 6, (8) and 10 , and 2-input multiplier can be replaced with S-input multiplier, thus being adjusted for measurement of the mean of multiplier output as follows:…”

Section: Principle Of Digital Stochastic Measurement Using 2-bit Flasmentioning

confidence: 99%