河南科技学院2025 届本科毕业论文(设计)论文题目:基于单片机的频率特性测试仪学生姓名:王会彦所在院系:机电学院所学专业:应用电子技术教育导师姓名:田熙燕完成时间:2025 年 5 月 27 日摘 要本文主要以单片机为控制核心,设计了一个频率特性测试仪
文中主要阐述了该仪器的结构、工作原理和性能特点
整个系统主要包括控制电路、数控扫频信号源电路、峰值测量电路、相位差测量电路以及数控衰减网络
该仪器硬件结构简单,软件设计灵活,具有测量范围宽、精度高、使用方便等特点
关键词:直接数字频率合成(DDS);电子测量;幅频特性;相频特性;单片机 Frequency Characteristic Instrument Based on Single-chip ComputerAbstractThis paper presents a type of frequency characteristic testing meter which is based on single chip microcomputer
It mainly expounds the instrument structure, working principle and characteristics
The system mainly consisted of numerical control circuit, signal circuit, sweeping circuit and CNC attenuation network
This instrument’s hardware structure and software design flexible, simple with wide measure range, high precision
And it is easy to use