高分辨率磁旋转编码器磁鼓材料的研制  

Magnetic drum material for high-resolution magnetic rotary encoders

作　　者：王海成[1] 王立锦[1] 冯春[1] 杨涛[1] 于广华[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《北京科技大学学报》2005年第3期325-327,共3页Journal of University of Science and Technology Beijing

基　　金：国家"863"项目(No.2003AA325010)

摘　　要：采用磁浆涂布工艺制作了磁鼓涂层材料.研究了不同组分的配方对磁鼓涂层材料性能的影响,制备出性能良好的磁鼓.对φ32-40mm的磁鼓进行了充磁测试,写入了128和256 对极.采用金属薄膜磁电阻传感探头检测磁鼓表面分布磁场,信号通过电路放大、整形后接入示波器和计数器,结果显示输出信号波形良好,计数完整.Magnetic drum coating material was prepared by using the magnetic slurry inunction process and the influence of component on the property of coating material was investigated. A high-performance magnetic drum whose diameter is 30-40 mm was ultimately manufactured with this material. The magnetic drum was magnetized and recorded 128 and 256 magnetic poles. A metal film magnetoresistance transducer was used to detect the distributing magnetic field of the drum surface and the signal was transformed to an oscillograph and an arithmometer by a magnifying and plastic circuit. It is shown that the output signal waveform is fine and the count is integrated.

关 键 词：磁鼓材料 磁编码器 涂布工艺 金属薄膜磁电阻 

分 类 号：O484.43[理学—固体物理]