一、引言目前，人类社会正逐渐由工业化时代向信息化时代迈进，作为感知、采集、转换、传输和处理各种信息必不可少的功能器件之传感器，已成为与微机同等重要的技术工具，特别是霍尔效应磁敏传感器一问世，就因它的高可靠性、高灵敏度和好的温度稳定性，在工业、军事和科... I. INTRODUCTION At present, human society is gradually moving from the era of industrialization to the era of informationization. As a sensor of essential function devices that senses, collects, transforms, transmits and processes various kinds of information, it has become an equally important technical tool for computers. In particular, Hall effect magnetic sensors come out, because of its high reliability, high sensitivity and good temperature stability in industry, military and science ...