电池内阻在线测量实验系统的设计与制作  

Design and Production of Experimental System of On-line Measurement of Battery Inner Resistance

作　　者：陈宝明[1] 董有尔[1] 郭亮[1] 

机构地区：[1]山西大学物理电子工程学院,山西太原030006

出　　处：《物理测试》2010年第4期27-29,共3页Physics Examination and Testing

基　　金：国家级实验教学示范中心资助项目;国家重点基础研究发展规划

摘　　要：针对目前高校物理实验课程缺乏电池内阻在线测量相关内容的实际情况,设计、制作一套电池内阻在线测量实验系统,投入实验教学,取得良好教学效果。该系统运用四引线法,将一定频率的交流信号注入电池,对其内阻上产生的微弱信号进行相关检测,测量信号通过单片机处理分析,实现电池内阻的在线测量;并可连接PC机,存储数据、自动绘制电池充电和放电特性曲线。系统测量结果精度高、速度快,应用前景广阔。A set of experiment system about battery inner resistance on-line measurement was designed and produced referring to current situation of lacking teaching contents associated with on-line measurement of battery inner resistance in college physics experiment courses. The system was applied experimental teaching and achieved good re- sult. The system used the tetrode method and injected a certain frequency AC signal to battery signals, then made correlation detection to weak mixed battery inner resistance singles. Finally chip microcomputer processed and ana- lyzed the signal measured to implement online measurement of battery inner resistance. The experiment system transferred data to computer, and then the computer saved data and automatic drawn a characteristic curve of battery charging and discharging. This system may obtain high precise fleetly. Consequently it has a wide application prospect.

关 键 词：电池内阻 交流注入相关检测法 在线测量 实验系统 

分 类 号：TM910.7[电气工程—电力电子与电力传动]