南 京 理 工 大 学毕业设计说明书(论文)作 者 :宋丹学 号：0903380108学院(系):电光学院专 业 :电子信息工程题 目 :基于单片机智能频率计的设计指导者： (姓 名) (专业技术职务)评阅者： (姓 名) (专业技术职务)朱红副教授 2025 年 5 月毕业设计说明书（论文）中文摘要本文介绍了以 MCS-51 单片机为核心的智能频率计的设计。在 KEIL 软件上进行程序的编写，在 PROTEUS 软件上进行电路连接的方式实现软件和硬件的结合，最后来完成频率的测量。频率计主要由单片机模块，频率选择模块和显示模块组成。针对不同范围段的频率，设计了三种测频方法。在低频段（0-10Hz）采纳测周法进行测量，在中频段（10-500Hz）采纳多周期同步法，在高频段（ 500-30KHz）是采纳测频方法进行测量。其中多周期法大大提高了测量精度，实现了同频段等精度的测量。关键词 单片机 频率 测量 高精度 多周期法毕业设计说明书（论文）外文摘要AbstractThe article describes the design of the intelligent frequency meter as the core of MCS-51.Tt is the combination of software and hardware to write the program on the KEIL software and to implement for circuit connection on the PROTEUS software so that to finally complete the frequency measurement. Frequency counter mainly consists of single-chip microcomputer module, frequency selection the module and display module. For different ranges of frequencies, has designed three methods of frequency measurement. In low frequency bands (0-10Hz) use measuring cycle method for measuring, in middle frequency bands (20-500Hz) use the method of multi-cycle synchronism, in high frequency bands (500-32KHz) use frequency measurement method for measurement. multi-cycle synchronism method improves measurement accuracy, achieved the same measurement with other precision measuring.Keywords Single-chip computer, frequency measurement, high precision Way of Multi-cycle目 录1. 前言................................................................51.1智能频率计讨论意义...............
