传感技术学报2016，Vol.29Issue(10)：1505-1508,4.DOI:10.3969/j.issn.1004-1699.2016.10.007
一种基于霍尔效应的扭矩传感器
A New Torque Sensor Based on Hall Effect
摘要
Abstract
Torque measurement plays a key role on the dynamic characteristics studying of rotating machinery when under various loads,a torque sensor based on hall effect is designed in this paper. The torque sensor is consist of sen⁃sor shaft,inner core and outer core,the inner core and outer core are placed on the shaft two ends respectively,and permanent magnetic steel and hall element are assembled in inner core and outer core respectively. The hall sensor has DC excitation voltage,and a constant magnetic field established by permanent magnet,the intersection angle of the hall sensor and the constant magnetic field is changing with the load torque for the deformation of sensor shaft,re⁃sulting the amplitude of hall sensor output signal is corresponding to the value of load torque. The sensor is calibrat⁃ed by torsion testing machine,the experiment results indicated the sensitivity of the sensor is about 31.5 mV/(N·m), the non-linear error is about 2.49%,the hysteresis error is about 0.47%,and the repeatability error is about 0.8%.关键词
扭矩传感器/霍尔效应/输出特性/标定Key words
torque sensor/hall effect/output characteristic/calibration分类
信息技术与安全科学引用本文复制引用
赵浩..一种基于霍尔效应的扭矩传感器[J].传感技术学报,2016,29(10):1505-1508,4.基金项目
浙江省自然科学（LQ14E050007）；嘉兴市科技计划项目 （）
