基于Android手机的晶体管特性图示仪研究  

Research of transistor characteristic graphic instrument based on Android phone

作　　者：杨增汪[1,2] 严真卿 王宜怀[2] 陈斯[1] 

机构地区：[1]江苏师范大学物理与电子工程学院,江苏徐州221116 [2]苏州大学飞思卡尔嵌入式应用实验室,江苏苏州215006 [3]江苏师范大学科文学院,江苏徐州221116

出　　处：《电子技术应用》2014年第9期7-9,13,共4页Application of Electronic Technique

基　　金：江苏省2013年现代教育技术研究课题(2013-R-25740)

摘　　要：利用Cortex-M0+微控制器与Android平台相结合,设计了一种采用蓝牙技术实现无线数据传输的晶体管特性图示仪。在分析系统工作原理的基础上,重点阐述基极阶梯波电流发生器、集电极扫描电压发生器及蓝牙通信模块电路,详细描述下位机软件流程和Android平台软件开发方法,并且实现晶体管特性曲线在智能手机上的存储、显示、分析等功能。测试结果表明,该图示仪测量精度高,稳定性好,方便易用。Using Cortex-M0＋ microcontroller and Android platform, a transistor characteristic graphic instrument is designed with Bluetooth technology to realize wireless data transmission. The paper introduces the work principle of measurement system, ex- pounds hardware cireuit which includes the base step-wave current generator, the collector scan voltage generator and Bluetooth communication module, and describes the software flow of lower computer and software development method based on Android plat- form in detail. The designed system achieves the function the smart phone. Test results show that the instrument has of transistor characteristic curve such as storage, display and analysis in high precision and good stability, and is easy-to-use.

关 键 词：Cortex-M0+ ANDROID 晶体管特性曲线 图示仪 蓝牙通信 

分 类 号：TM930.9[电气工程—电力电子与电力传动]