基于霍尔效应的电磁式角度编码器的技术研究  

Research on electromagnetic angle encoder based on hall

作　　者：娄敏 李强[1] 彭雪峰[1] 汪瑞[1] LOU Min;LI Qiang;PENG Xuefeng;WANG Rui(Jiujiang Vocational and Technical College,Jiujiang 332000,China)

机构地区：[1]九江职业技术学院,江西九江332000

出　　处：《传感器世界》2023年第2期10-14,共5页Sensor World

基　　金：江西省教育厅科技项目“集成了平铺式齿轮传动及误差补偿技术的高精度、多圈电磁式角度编码器的技术研究”(No.GJJ214001)。

摘　　要：针对光电式角度编码器整体可靠性不高的缺陷,文章提出了一种基于霍尔效应的新型电磁式角度编码器。这种新型电磁式角度编码器是在编码器内部的轴系上固定一径向充磁的圆形磁铁,在与磁铁相对应的固定端安置一集成了霍尔敏感元件的磁解码芯片,当轴系带动圆形磁铁转动时,磁解码芯片通过其集成的霍尔型敏感元件将感应到的电磁场变化转换为电信号。文中针对这种新型的电磁式角度编码器介绍了其工作原理及实现方法,最后构建测试系统对电磁式角度编码器的功能进行了测试,进而验证了文章提出技术方案的可行性。Becasuse the reliability of photoelectric angle encoder is not high,the paper proposes a new type of electromagnetic angle encoder based on hall effect.The new electromagnetic angle encoder is to fix a radially magnetized circular magnet on the internal shaft,and to place a magnetic decoding chip integrated with hall sensing element at the fixed position corresponding to the magnet.When the shaft drives the circular magnet to rotate,the magnetic decoding chip converts the induced variable electromagnetic signal into electrical signal through its integrated hall type sensitive element.The paper introduces the working principle and implementation method of the new type of electromagnetic angle encoder.Finally,a test system is built to test the function of the electromagnetic angle encoder,which verifies the feasibility of the technical scheme proposed in the paper.

关 键 词：角度传感器 编码器、电磁式 霍尔效应 

分 类 号：TM932[电气工程—电力电子与电力传动]