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Sensors 2015, 15(11), 28340-28366; doi:10.3390/s151128340

Magnetic Sensors Based on Amorphous Ferromagnetic Materials: A Review

Sensors and Actuators Group, Department of Building Technology, Polytechnic University of Madrid, 28040 Madrid, Spain
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Author to whom correspondence should be addressed.
Academic Editor: Andreas Hütten
Received: 21 September 2015 / Revised: 26 October 2015 / Accepted: 5 November 2015 / Published: 11 November 2015
(This article belongs to the Special Issue Magnetic Sensor Device-Part 1)
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Abstract

Currently there are many types of sensors that are used in lots of applications. Among these, magnetic sensors are a good alternative for the detection and measurement of different phenomena because they are a “simple” and readily available technology. For the construction of such devices there are many magnetic materials available, although amorphous ferromagnetic materials are the most suitable. The existence in the market of these materials allows the production of different kinds of sensors, without requiring expensive manufacture investments for the magnetic cores. Furthermore, these are not fragile materials that require special care, favouring the construction of solid and reliable devices. Another important feature is that these sensors can be developed without electric contact between the measuring device and the sensor, making them especially fit for use in harsh environments. In this review we will look at the main types of developed magnetic sensors. This work presents the state of the art of magnetic sensors based on amorphous ferromagnetic materials used in modern technology: security devices, weapon detection, magnetic maps, car industry, credit cards, etc. View Full-Text
Keywords: magnetic sensor; amorphous ribbons; amorphous wire; ferromagnetic material; magnetic core; magnetometer; magnetoimpedance; bistability; security system; weapon detectors magnetic sensor; amorphous ribbons; amorphous wire; ferromagnetic material; magnetic core; magnetometer; magnetoimpedance; bistability; security system; weapon detectors
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Morón, C.; Cabrera, C.; Morón, A.; García, A.; González, M. Magnetic Sensors Based on Amorphous Ferromagnetic Materials: A Review. Sensors 2015, 15, 28340-28366.

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