【摘要】 对实验室常用的太阳电池伏安特性测试方法进行改进,设计了一种利用计算机通用外设——声卡进行模拟信号的采集与A/D转换,并利用MATLAB软件进行数据处理与分析的太阳电池电流电压特性自动测试系统。建立测量与信号变换电路,通过软件实现了图形用户界面操作,同时对测试结果的可靠性进行了理论分析,通过测试表明系统符合设计的要求。更多还原

【Abstract】 In virtue of a universal outer equipment of computer, sound card, an automatic measuring system for solar cells was set up. Sound card was used to collect analog electric signals and turn it into discrete digital signals. With the help of MATLAB, a kind of science calculate software, the digital signals were gathered and dealt with in computer. A measuring and signals changing circuit was provided at the same time. A graphical user interface of the test system was realized by MATLAB, with which the values of volt and current can be measured, the I-V curve and the max power of that was obtained. The process of operation is very simple and fast.更多还原