基于GMR传感器三磁道磁卡读卡器设计  

Design of three track magnetic card readers based on GMR sensor

作　　者：刘雯[1,2] 钱正洪[1,2] 白茹[1,2] 孙宇澄[1,2] 李健平[1,2] 

机构地区：[1]杭州电子科技大学磁电子中心,浙江杭州310018 [2]湖北省磁电子工业技术研究院,湖北宜昌443003

出　　处：《传感器与微系统》2015年第7期54-56,59,共4页Transducer and Microsystem Technologies

基　　金：浙江省重大科技专项项目(2011C11047);浙江省"磁电子材料和器件"高校创新团队项目(2009[171]);浙江省重点科技创新团队项目(2010R50010)

摘　　要：针对金融、商业、邮电等消费领域对磁卡读卡器的要求,为实现低误码率,解决用户刷卡速度不一的问题,基于巨磁电阻(GMR)传感器,提出了一种新型三磁道磁卡读卡器的设计方案。该方案以解码芯片M3—2300—LOL为平台,设计了滤波电路和解码电路,实现了对三磁道磁卡的信息采集、分析和读取。经实验测试表明:巨磁电阻磁头可替代传统薄膜感应(TFI)磁头,该磁卡阅读系统运行稳定,效果良好。A design approach of late-model three track card readers based on GMR sensors,to realize low bit error rate and solve problem of different card feeding speed by users to meet the financial,commerce,posts and telecommunications field requirements. Data collection,analysis and read of three tracks magnetic card is realized based on decoding chip M3—2300—LOL,filtering and decoding circuit are designed. Test results demonstrate that GMR magnetic head can replace traditional film induction（ TFI） head,this magnetic card reader system operates stably,and has good effect.

关 键 词：巨磁电阻传感器 传统薄膜感应 解码电路 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]