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薄膜磁阻效应计算机控制自动测试
引用本文:崔甲武,宋金璠,周雁青,张绍武.薄膜磁阻效应计算机控制自动测试[J].济南大学学报(自然科学版),2002,16(2):200-202.
作者姓名:崔甲武  宋金璠  周雁青  张绍武
作者单位:1. 南阳师范学院物理系,河南,南阳,473061
2. 南阳电力技校,河南,南阳,473009
3. 河南省科学院应用物理研究所,河南,郑州,450008
基金项目:河南省教育厅科研项目 (编号 :2 0 0 0 14 0 0 0 8)
摘    要:采用单片机8031模拟三角色波输出而产生超低频扫场电源,克服阻容元件线差波形不稳定,用8位单位片机与16位数模板转换器进行接口,给出了控制系统,D/A转换,恒流和功率驱动电路以及软件设计,以四探针,六探针法测量,实现对薄膜磁阻效应的自动测试。

关 键 词:薄膜磁阻效应  探针  单片机
文章编号:1671-3559(2002)02-0200-03
修稿时间:2002年3月18日

Film Magnetic-resistance Effect Automeasured by Computer Control
Cui Jiawu ,Song Jinfan ,Zhou Yanqing ,Zhang Shaowu.Film Magnetic-resistance Effect Automeasured by Computer Control[J].Journal of Jinan University(Science & Technology),2002,16(2):200-202.
Authors:Cui Jiawu  Song Jinfan  Zhou Yanqing  Zhang Shaowu
Institution:Cui Jiawu 1,Song Jinfan 1,Zhou Yanqing 2,Zhang Shaowu 3
Abstract:The ultraflow frequency scanning field power supply is obtained by chip microprocessors 8031 simulating trangular wave output.The problem of the unstablity of wire difference and waveform of resistance capacipy element is solved,chip microprocessor of 8 units and the data mode converter of 16 units are used to make the interface,the contral system,D/A conversion,the constant-rate of flow,the power driving electric circuit and the software design are provided.The thin film magnetic-resistance effect is measured automatically by four probes and six probes measure methods.
Keywords:thin film magnetic-resistance effect  probe  chip microprocessors
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