Eddy currents are an electromagnetic phenomenon that represent an inexhaustible source of inspiration for technological innovations in the 21st century. Throughout history, these currents have been a subject of research and technological development in multiple fields. This article delves into the fascinating world of eddy currents, revealing their physical foundations and highlighting their impact on a wide range of applications, ranging from non-destructive evaluation of materials to levitation phenomena, as well as their influence on fields as diverse as medicine, the automotive industry, and aerospace. The nature of eddy currents has stimulated the imaginations of scientists and engineers, driving the creation of revolutionary technologies that are transforming our society. As we progress through this article, we will cover the main aspects of eddy currents, their practical applications, and challenges for future works.

Induction stoves are increasingly recognized as the future of cooking technology due to their numerous benefits, including enhanced energy efficiency, improved safety, and precise cooking control. This paper provides a comprehensive review of the key technological advancements in induction stoves, while also examining the societal and health impacts that need to be addressed to support their widespread adoption. Induction stoves operate based on the principle of eddy currents induced in metal cookware, which generate heat directly within the pot, reducing cooking times and increasing energy efficiency compared with conventional gas and electric stoves. Moreover, induction stoves are considered an environmentally sustainable option, as they contribute to improvements in indoor air quality by reducing emissions associated with fuel combustion during cooking. However, ongoing research is essential to ensure the safe and effective use of this technology on a broader scale.

En este trabajo se lleva a cabo el análisis de la sensibilidad de un sensor magnético, basado en el fenómeno de magnetorresistencia gigante (GMR), cuando se utiliza en la medición de campos magnéticos variantes en el tiempo en superposición con componentes estáticas. La característica de transferencia del sensor GMR se obtuvo experimentalmente midiendo el campo magnético generado por una bobina de Helmholtz. A partir de la característica de transferencia experimental se obtuvo computacionalmente la respuesta de sensibilidad del sensor GMR y posteriormente se validó experimentalmente. Se determinó una nueva región de operación del sensor GMR en la respuesta de sensibilidad del sensor GMR, la cual tiene un comportamiento lineal. Los resultados demuestran que, es indispensable utilizar un campo de polarización para garantizar un mejor desempeño del sensor GMR en las mediciones de campos magnéticos pequeños. El valor del campo de polarización utilizado depende del tipo de campo magnético en función del tiempo que se vaya a medir (AC o DC). Finalmente, en este artículo se presentan y proponen los correspondientes rangos de valores de los campos magnéticos de polarización.