简易信号测量仪（c1题）.doc

简易信号测量仪（C1题）

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关键词 简易信号测量仪 单机片

摘 要
本系统以单片机为核心设计了一种用于测量频率、周期、脉宽、占空比、峰峰值的简易信号测量仪，其中还可分辩正弦波与方波，利用单片机的数学运算和控制功能，结合部分中规模数字电路，实现测量中的功能自动切换。各项实测表明，设计原理正确合理，指标符合设计要求。

Abstract
A simple signal instrument base on a microcontroller can measure frequency, period, pulse width , duty cycle and Vpp, and can differentiate sine wave from square wave .By taking full use of the microcontroller and by combining some middle scale IC, can switch automatically among different function. The test shown that the theory is correct and reasonable, and index satisfy the requirement of design.