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| 磁性旋转编码器磁阻磁头研制 | |
| 引用本文： | 郑远开,于军,谢基凡,李佐宜. 磁性旋转编码器磁阻磁头研制[J]. 华中科技大学学报(自然科学版), 1998, 0(10) |
| 作者姓名： | 郑远开 于军 谢基凡 李佐宜 |
| 作者单位： | 华中理工大学电子科学与技术系 |
| 基金项目： | 国家“八五”科技攻关项目（85－719－02－06／06） |
| 摘 要： | 分析了磁性旋转编码器的工作原理，对磁阻磁头的工作过程作了详细分析．通过差动放大输出及选择高性能磁阻薄膜材料，设计了温度系数小、信噪比高的磁阻磁头．采用半导体工艺制备了磁性旋转编码器磁阻磁头．该磁性旋转编码器具有结构简单、紧凑，响应速度快，抗环境污染能力强和功耗低等优点，可广泛应用于伺服马达、数控机床等． |
| 关 键 词： | 磁性材料 磁性旋转编码器 磁阻磁头 |
Fabrication of the Magneto Resistance Readout Head for Magnetic Rotary Encoder |
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| Zheng Yuankai,Ph. D.,Dept. of Electronics Sci. , Tech.,HUST,Wuhan ,China. Yu Jun,Xie Jifan,Li Zuoyi. Fabrication of the Magneto Resistance Readout Head for Magnetic Rotary Encoder[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1998, 0(10) | |
| Authors: | Zheng Yuankai Ph. D. Dept. of Electronics Sci. & Tech. HUST Wuhan China. Yu Jun Xie Jifan Li Zuoyi |
| Affiliation: | Zheng Yuankai,Ph. D.,Dept. of Electronics Sci. & Tech.,HUST,Wuhan 430074,China. Yu Jun,Xie Jifan,Li Zuoyi |
| Abstract: | The mechanism of the magnetic rotary encoder and the working process of the magneto re- sistance readout head are analyzed in detail. By means of the differential amplifier application and the magneto resistance films selection with high magneto resistance ratio, a magneto resistance head with low temperature coefficient and high signal-noise ratio is developed. The head for magnetic rotary en- coder is manufactured by using semiconductor process. The magnetic rotary encoder has the proper- ties such as simple and compact structure, quick response, resistance to humid and dirty environment, low dissipation power and so on. It can be widely used in the field of servo-motor and numerical ma- chine. |
| Keywords: | magnetic material magnetic rotary encoder magneto resistance readout head |
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