7.2.2低频数字式相位测量仪（C题）修改稿.pdf

低频数字式相位测量仪(C 题)设计与总结报告示例
(以下是一个实际的低频数字式相位测量仪(C 题)设计与总结报告)

低频数字式相位测量仪(C 题)

摘要:设计了一个基于现场可编程门阵列(FPGA)的低频数字式相位测量仪。该测量仪
包括数字式移相信号发生器和相位测量仪两部分,分别完成移相信号的发生及其频率、相位
差的预置及数字显示、信号的移相以及移相后信号相位差和频率的测量与显示等功能。其中
数字式移相信号发生器可以产生预置频率的正弦信号,也可产生预置相位差的两路同频正弦
信号,并能显示预置频率或相位差值;相位测量仪能对移相信号的频率、相位差的测量和显
示。两个部分均采用基于 FPGA 的数字技术实现,使得该系统具有抗干扰能力强, 可靠性好
等优点。
关键词:现场可编程门阵列(FPGA),数字式移相信号发生器,相位测量仪

Abstrct:The paper deals with designing of a low frequency phase measurement system based
on FPGA technology. This phase measurement system includes two modules---a signal generator
and a phase measurement subsystem. Its signal generator module can generate a sin wave with
preconcerted frequency and two waves with preconcerted phase difference. It can continuously
change signal phases through phase shifting. And its phase measurement subsystem has functions
of measuring signal phase and phase difference of two signals. All of its three modules adopt
digital technology base on FPGA. This system is characteristic of its strong antijamming
performance and fine stability.

Key words:FPGA,Digital phase signal generator,Phase measurement system
(注意:以上内容在实际论文中为一页)

目录
1. 系统设计………………………………………………………………………………………x
设计要求………………………………………………………………………………………x
设计任务……………………………………………………………………………………x
技术要求……………………………………………………………………………………x
方案比较………………………………………………………………………………………x
相位测量方案………………………………………………………………………………x
移相网络方案………………………………………………………………………………x
正弦波信号发生器方案……………………………………………………………………x
频率测量方案………………………………………………………………………………x
幅度控制方案………………………………………………………………………………x
滤波选择方案………………………………………………………………………………x
显示界面方案………………………………………………………………………………x
方案论证………………………………………………………………………………………x
总体思路……………………………………………………………………………………x
设计方案……………………………………………………………………………………x
2. 单元电路设计…………………………………………………………………………………x
低频率数字式相位测量仪……………………………………………………………………x
相位测量原理……………………………………………………………