基于逆维捷曼效应的用于汽车EPS系统的转矩传感器  

Research on Torque Sensor Base on Counter-Wiedemann Effect for Automobile EPS

作　　者：石延平[1] 臧勇[1] 范书华[1] 

机构地区：[1]淮海工学院机械系,江苏连云港222005

出　　处：《仪表技术与传感器》2012年第8期12-14,62,共4页Instrument Technique and Sensor

基　　金：江苏省海洋资源开发研究院科技开放基金项目(JSIMR09B07)

摘　　要：对一种基于铁基非晶态软磁合金的逆维捷曼效应,可用于汽车EPS系统的新型转矩传感器进行了研究。介绍了传感器的结构和原理。通过试验,分析了激磁磁场强度对传感器测量精度的影响,得到了传感器的静态特性以及零点温度漂移指标。试验显示,文中研究的传感器测量精度能够达到1.0%,而且其结构简单,工作可靠,应用于汽车电动助力系统(EPS)是可行的。A new torque sensor based on Counter-Wiedemann effect of Fe-base amorphous alloy was discussed,and it can be used for automobile electronic power steering.The principle and structure of the sensor were presented.By making a torque measuring experiment,the effect of the exciting field intensity on measurement accuracy was analyzed,and the static characteristic and temperature drift no-loading of sensor were got.The experimental result shows the sensor’s measurement precision is 1.0%.In addition,the sensor’s structure is simple and its operational reliability is superior.So it is feasible to apply it for the automobile electronic power steering.

关 键 词：转矩传感器 非晶态合金 逆维捷曼效应 汽车 EPS系统 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]