目  录

 

摘要----------------------------------------------------------------------------------------------Ⅰ

Abstract-----------------------------------------------------------------------------------------Ⅱ

目录----------------------------------------------------------------------------------------------Ⅲ

图清单-------------------------------------------------------------------------------------------Ⅳ

表清单-------------------------------------------------------------------------------------------Ⅳ

1 绪论--------------------------------------------------------------------------------------------1

1.1 课题的背景和意义---------------------------------------------1

1.2 课题的研究现状-------------------------------------------------

1.3 课题研究主要内容----------------------------------------------

1.4 本章小结------------------------------------------------------------------------------------

2总体方案论证---------------------------------------------------------------------------------2

2.1设计要求-------------------------------------------------------------------------------------2

2.2 方案对比论证-------------------------------------------------------------------------------

2.3 本章小结-------------------------------------------------------------------------------------

3 系统硬件设计---------------------------------------------------------------------------------

3.1 课题的工作原理--------------------------------------------------------------------------

3.2 单片机的选用-------------------------------------------------------------------------------

3.3 放大电路设计-------------------------------------------------------------------------------

3.4 数据采集电路设计-------------------------------------------------------------------------

3.5 过零检测电路和锁相环倍频电路设计-------------------------------------------------

3.6 键盘和显示电路设计---------------------------------------------------------------------

3.7 本章小结--------------------------------------------------------------------------------------

4 系统软件设计---------------------------------------------------------------------------------

4.1 总流程图与说明----------------------------------------------------------------------------

4.2 数据处理的流程图与说明----------------------------------------------------------------

4.3 键盘与显示的流程图与说明-------------------------------------------------------------

4.4 本章小结-------------------------------------------------------------------------------------

5 结论-------------------------------------------------------------------------------5

参考文献------------------------------------------------------------------------------------6

致谢----------------------------------------------------------------------------------------------7

附录Ⅰ-----------------------------------------------------------------------------------------------

附录Ⅱ----------------------------------------------------------------------------------------------