铁磁金属薄膜磁阻传感器(以下简称MR传感器)是磁传感器中的一种,它具有温度稳定性好、灵敏度高、可非接触计测、用途广泛等特点,越来越受到很多人的重视。目前,国外许多公司已陆续地报导了有关的产品。本文介绍这种传感器的基本原理、构造及其应用,最后谈谈它的发展前景。 Ferromagnetic metal film magnetoresistive sensor (hereinafter referred to as MR sensor) is one of the magnetic sensors, it has the characteristics of good temperature stability, high sensitivity, non-contact measurement, wide range of uses, more and more people pay more attention . At present, many foreign companies have reported on the product one after another. This article describes the basic principles of this sensor, structure and its application, and finally talk about its development prospects.