6533b7cffe1ef96bd125995f
RESEARCH PRODUCT
Electronic Energy Meter Based on a Tunnel Magnetoresistive Effect (TMR) Current Sensor
Enrique García VidalRicardo FerreiraJaime Sánchez MorenoSusana CardosoPaulo P. FreitasSergio Iván Ravelo AriasDiego Ramírez Muñozsubject
tunnel magnetoresistance; current sensor; energy meter; power measurement; wattmeter; internet-of-thingsEngineeringMagnetoresistancepower measurementPower factorlcsh:Technology01 natural sciencesArticlelaw.inventionElectricity meterlaw0103 physical sciencescurrent sensorinternet-of-thingsGeneral Materials ScienceCurrent sensorlcsh:Microscopylcsh:QC120-168.85wattmeter010302 applied physicslcsh:QH201-278.5lcsh:Tbusiness.industrytunnel magnetoresistance010401 analytical chemistryElectrical engineeringWattmeterAC powerenergy meterLine (electrical engineering)0104 chemical sciencesTunnel magnetoresistancelcsh:TA1-2040lcsh:Descriptive and experimental mechanicslcsh:Electrical engineering. Electronics. Nuclear engineeringlcsh:Engineering (General). Civil engineering (General)businesslcsh:TK1-9971description
In the present work, the design and microfabrication of a tunneling magnetoresistance (TMR) electrical current sensor is presented. After its physical and electrical characterization, a wattmeter is developed to determine the active power delivered to a load from the AC 50/60 Hz mains line. Experimental results are shown up to 1000 W of power load. A relative uncertainty of less than 1.5% with resistive load and less than 1% with capacitive load was obtained. The described application is an example of how TMR sensing technology can play a relevant role in the management and control of electrical energy.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-09-01 | Materials; Volume 10; Issue 10; Pages: 1134 |