霍耳元件是直接利用霍耳效应制成的器件，具有尺寸小、外围电路简单、频响宽、动态特性好、使用寿命长等特点，因此广泛应用于测量、自动控制及信息处理等领域、本文利用物理学理论．分析、介绍霍耳效应原理、霍耳元件及其典型应用，使物理学理论与技术有机结合． 一、霍耳效应 The Hall element is a device made directly by the Hall effect, has the advantages of small size, simple peripheral circuit, wide frequency response, good dynamic characteristics and long service life. Therefore, the Hall element is widely used in the fields of measurement, automatic control and information processing, This article uses the theory of physics. Analysis, introduction of Hall effect principle, Hall element and its typical application, make physics theory and technology organic combination. First, the Hall effect