光盘高频信号的物理实验设计与测量  

Design and measurement of high frequency signal of compact disk recordable in physics experiment

作　　者：苏欣纺[1] 黄伟[1] 魏京花[1] 

机构地区：[1]北京建筑工程学院理学院,北京100044

出　　处：《大学物理》2011年第11期35-37,61,共4页College Physics

基　　金：北京建筑工程学院科学研究基金项目(101002407)资助

摘　　要：应用电子技术理论,利用旧光驱和模拟示波器,演示了光盘高频信号形成的"眼图",并测得了高频信号的最高电平(Itop),归一化I11值,归一化I3值,分辨率(RES)、对称性(SYM)等参数.此演示实验装置简单易于操作,体现了日常生活中的高新技术与大学物理的联系,可用于大学物理光学部分的演示实验教学和特性分析.By using the old CD driver and electronic technologies, the ＂eye diagram＂ formed by high frequency signal of compact disc is demonstrated on analog oscilloscope. The high frequency signal parameters, such as the highest voltage, normalized voltage I11R,I3R, resolution, symmetry, are measured. The demonstration installation which is accessible and easily manipulated by students shows the knowledge in high and innovative technologies and daily life. It could be used to demonstrate and analyze the characteristic of the optics experiment.

关 键 词：光盘 高频信号(HF) 眼图 高频参数测量 

分 类 号：O4-34[理学—物理]