Introduction of Computer Aided Data Acquisition into Undergraduate Electrical Engineering Laboratories

为将计算机辅助数据采集引入本科电气工程实验室而购置设备。计算机辅助数据采集将以一种学生不会“远离”动手实验经验的方式引入。也就是说，现有的实验室设备将用于设置实验和观察初步结果；计算机辅助数据采集将作为取代人工逐点数据采集或复制示波器轨迹的最后一步。这种方法有几个优点：学生可以更好地接触到当前的工程实践；数据以适合使用计算机工具进行分析和呈现的形式获取；提高了实验室的效率。笔记本电脑和构建的数据采集模块的选择基于以下标准：1)数据采集单元易于运输-因此几个单元可以服务于几个实验室。2)成本效益，因为几个单元可以服务多个实验室。3)占地面积小，节省了实验台空间；4)所构建的数据采集模块的功能能够满足本科实验室的需求。

Equipment is acquired to introduce computer aided data acquisition into undergraduate electrical engineering laboratories. Computer aided data acquisition will be introduced in a way that students are not "distanced" form the hands-on laboratory experience. That is, existing laboratory equipment will be used to set up experiments and observe initial results; the computer aided data acquisition will be introduced as the last step to replace manual point-by-point data collection or copying oscilloscope traces. This approach has several advantages: students are better exposed to current engineering practice; data is acquired in a form suitable for analysis and presentation using computer tools; and laboratory efficiency is increased. The choice of laptop computers and constructed data acquisition modules is based on the following criteria: 1) The data acquisition units are easily transportable - thus a few units may serve several laboratories. 2) Cost effectiveness, because few unites can serve several laboratories. 3) The small footprint conserves bench space and 4) The capabilities of the constructed data acquisition modules can be matched to the demands of undergraduate laboratories.