Electronic Energy Meter Based on a Tunnel Magnetoresistive Effect (TMR) Current Sensor

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. Experime...

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Detalles Bibliográficos
Autores principales: García Vidal, Enrique, Ramírez Muñoz, Diego, Ravelo Arias, Sergio Iván, Sánchez Moreno, Jaime, Cardoso, Susana, Ferreira, Ricardo, Freitas, Paulo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666940/
https://www.ncbi.nlm.nih.gov/pubmed/28954425
http://dx.doi.org/10.3390/ma10101134
Descripción
Sumario: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.

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