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RESEARCH PRODUCT
A tunnel magnetoresistive effect wattmeters-based wireless sensors network
S. I. Ravelo AriasD. Ramírez MuñozPaulo P. FreitasJ. Sánchez MorenoSusana Cardososubject
EngineeringWheatstone bridge02 engineering and technologyPower factor01 natural scienceslaw.inventionlaw0103 physical sciencesElectronic engineeringCurrent sensorElectrical and Electronic EngineeringInstrumentation010302 applied physicsbusiness.industryNode (networking)Metals and AlloysElectrical engineeringWattmeterAC power021001 nanoscience & nanotechnologyCondensed Matter PhysicsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsSensor node0210 nano-technologybusinessWireless sensor networkdescription
Abstract In the present work a wireless sensors network (WSN) for smart energy metering is presented using the ZigBee protocol as the communication link. Each network node process the electrical power by means of a Wheatstone bridge sensor based on the tunnel magnetoresistive (TMR) effect working as analogue multiplier. The electrical power is acquired and processed by a digital signal processor that extracts various parameters of interest like current and voltage load, active power and power factor by means of Fourier analysis. All the obtained electrical parameters at each node are served and shown in a web page that can be easily accessed by authorized users.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-09-01 | Sensors and Actuators A: Physical |