CAJ | 학술논문

为了解决市场上各种多功能、高精度数字频率计高价格的问题,本文通过综合分析实际工作的要求,选择市场上低价格的常用元件,由单片机产生闸门时间与时钟等基准信号以减少外围电路,从而提出了一种基于单片机（AT89C51）为主控制核心、LCD1602为显示界面的频率计设计方案。本方案可满足简易频率计体积小、成本低、精度高、可测频带宽的市场需求。
위료해결시장상각충다공능、고정도수자빈솔계고개격적문제,본문통과종합분석실제공작적요구,선택시장상저개격적상용원건,유단편궤산생갑문시간여시종등기준신호이감소외위전로,종이제출료일충기우단편궤（AT89C51）위주공제핵심、LCD1602위현시계면적빈솔계설계방안。본방안가만족간역빈솔계체적소、성본저、정도고、가측빈대관적시장수구。
In order to meet the great necessity of multi-function, high-precision digital frequency meter with a lower price, we choose the common cheap components, and use microcontroller to produce the basic clock signal to minimize the peripheral circuit. A design of frequency meter based on microcontroller (AT89C51) and LCD1602 is proposed, which has the properties of small size, low cost, high precision and wide frequency bandwidth.