Search results for "Data acquisition board"

showing 4 items of 4 documents

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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Development of a high-accuracy PC-based wattmeter with commercial data acquisition boards

2011

This paper presents the development of a high accuracy sampling wattmeter, which makes use of two commercial data acquisition boards (DAQs) connected to a common personal computer. Commercial software is also used for data processing and implementation of the virtual instrument. The set up of the PC-based wattmeter is described and a preliminary evaluation of its metrological performances is made by means of two series of experimental tests, which were carried out with an electric power standard and a high performance multifunction calibrator. © 2011 IEEE.

EngineeringVirtual instrumentElectric power measurementPC-basedlaw.inventionSet (abstract data type)Data acquisitionSampling (signal processing)lawExperimental testElectronic engineeringMeasurement theorySampled data control systemsCommercial softwareData processingpower measurements data acquisition wattmeters power system measurements sampled data systems PC-based instrumentsVirtual instrumentationData acquisition boardbusiness.industryMetrological performanceWattmeterData handlingCommercial softwareElectric powerPersonal computersSampled data systemsPower qualityPower system measurementPersonal computerHigh-accuracyInstrumentsbusinessWattmetersSettore ING-INF/07 - Misure Elettriche E Elettroniche2011 IEEE International Instrumentation and Measurement Technology Conference
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A PC-based wattmeter for high accuracy power measurements

2010

This paper proposes the use of a commercial data acquisition board (DAQ) connected to a common personal computer for high accuracy power measurements. In the paper the set up of the PC-based wattmeter is described and an experimental evaluation of its metrological performances is made by means of the comparison with a simultaneous coherent digital sampling wattmeter realized with two high-precision DMMs Hewlett Packard Model 3458 A. In both cases the power source is a Fluke 6100A/E electrical power standard. © 2010 IEEE.

EngineeringExperimental evaluationHigh-precisionElectric power measurementlaw.inventionPC-basedPower sourcesSet (abstract data type)Data acquisitionSampling (signal processing)lawElectronic engineeringPower measurementMeasurement theoryHewlett Packard modelsbusiness.industryData acquisition boardDigital samplingElectrical engineeringMetrological performanceWattmeterElectrical powerelectric power measurement digital sampling wattmeters data acquisition board pc-based instrumentPower (physics)MetrologyPersonal computersElectrical power measurementsPersonal computerElectric powerbusinessInstrumentsSettore ING-INF/07 - Misure Elettriche E ElettronicheWattmetersElectric power supplies to apparatus
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Uncertainty evaluation in power measurements with commercial data acquisition boards

2011

The paper deals with the metrological characterization of a digital wattmeter developed by using a personal computer, a shunt, two commercial data acquisition boards and commercial software. The uncertainty of the active power measurements is assessed individually characterizing the voltage channel, the current channel and the phase displacement measurement between the two channels. In particular, the uncertainty on the voltage and current rms measurements is evaluated by using an already proposed approach based on the Monte Carlo method and on the usage of five parameters, while the uncertainty on the phase angle is experimentally estimated. In order to validate the proposed approach for t…

Data acquisition boardTwo channelData acquisitionMonte Carlo methodsUncertainty evaluationCommercial softwareNational standardPC-basedPersonal computerspower measurements data acquisition wattmeters uncertainty evaluation PC-based instrumentsActive-power measurementsUncertainty analysisSettore ING-INF/07 - Misure Elettriche E ElettronicheMetrological characterizationPhase anglesWattmeters
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