Search results for "Signal sampling"

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A PC-based wattmeter for accurate measurements in sinusoidal and distorted conditions: Setup and experimental characterization

2012

This paper presents the development of a high-accuracy sampling wattmeter, which can be employed with both sinusoidal and distorted input signals. The proposed personal computer (PC)-based system is a simple, portable, and low-cost solution because it is based on two commercial data acquisition boards connected to a common PC. Owing to this solution, the voltage is sensed directly, avoiding expensive voltage dividers, while the current is sensed by means of a noninductive current shunt. Commercial software is also used for data processing and implementation of the virtual instrument. The setup of the PC-based wattmeter is described, with a detailed description of the correction strategy of …

EngineeringVirtual instrumentExperimental evaluationMeasurement uncertaintyNon-inductive currentsInput signalHarmonic distortionElectric power measurementlaw.inventionPC-basedData acquisitionlawExperimental testElectronic engineeringData acquisition harmonic distortion personal computer (PC) -based instrument power measurement power system measurements wattmetersElectrical and Electronic EngineeringSignal samplingInstrumentationVoltage dividersTotal harmonic distortionLow-cost solutionVirtual instrumentationbusiness.industryAnalog to digital convertersData acquisition boardExperimental characterizationVoltage dividerElectrical engineeringData acquisitionMetrological performanceWattmeterAccurate measurementCommercial softwareElectric powerPersonal computersPower qualityPersonal computerPower system measurementMeasurement uncertaintyUncertainty analysisbusinessHigh-accuracySettore ING-INF/07 - Misure Elettriche E ElettronicheWattmetersVoltage
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