基于51單片機的數(shù)字頻率計課程設(shè)計報告(已修改)
2024-11-19 19:44 本頁面
【正文】 摘 要 數(shù)字頻率計是計算機、通訊設(shè)備、音頻視頻等科研生產(chǎn)領(lǐng)域不可缺少的測量儀器。 它是一種用十進制數(shù)字顯示被測信號頻率的數(shù)字測量儀器。它的基本功能是測量正弦信號，方波信號及其他各種單位時間內(nèi)變化的物理量。 在進行模擬、數(shù)字電路的設(shè)計、安裝、調(diào)試過程中， 由于其使用十進制數(shù)顯示，測量迅速，精確度高，顯示直觀， 經(jīng)常要用到頻率計。 本數(shù)字頻率計將采用定時、計數(shù)的方法測量頻率，采用一個 LCD1602 顯示器動態(tài)顯示 6 位數(shù)。測量范圍從 1Hz— 100kHz 的正弦波、方波、三角波等多種幅度寬的信號。用 STC89C52 單片機實現(xiàn) 自動測量功能。 基本設(shè)計原理是直接用十進制數(shù)字顯示被測信號頻率的一種測量裝置。它以測量周期的方法對正 弦波、方波、三角波的頻率進行自動的測量。 關(guān)鍵詞 :數(shù)字頻率計、信號、 STC89C52 單片機 、 LCD1602 Abstract Digital frequency meter is the puter, munications equipment, audio, video and other essential areas of research and production of measuring instruments. It is a decimal figures show the number of the measured signal frequency measuring instruments. Its basic function is to measure the sinusoidal signal, square wave signals and other physical changes in unit time. During the simulation, digital circuit design, installation, missioning process, due to the use of decimal numbers show that the rapid measurement, high precision, intuitive display, often use the frequency meter. This digital frequency meter will use timing, counting methods for measuring the frequency of a 1602A LCD monitor with dynamic display of 6 digits. Measuring range from 1Hz100kHz sine wave, square wave, triangle wave, and other wide range of signals. MCU with STC89C52 automatic measurement function. The basic design principle is the direct use of the decimal figures show the measured frequency of a measuring device. It is the method to measure the cycle sine wave, square wave, triangle wave frequency signal to automatically measure and display the result. Keywords: Digital Fequency Meter, Signal, STC89C52 SCM、 LCD1602 2 引言 ................................................. 4 1 課程設(shè)計概述 ......................................................................................... 3 課程設(shè)計題目 ......................................錯誤 !未定義書簽。 主要儀器設(shè)備 ...................................................... 3 基本設(shè)計原理 ...................................................... 3 2 硬件 電路 設(shè)計 ............................................................ 錯誤 !未定義書簽。 單片機 系統(tǒng)模塊 ....................................錯誤 !未定義書簽。 波形放大與整形模塊 .................................................... 9 顯示模塊 ........................................................
公司管理相關(guān)推薦
鄂ICP備17016276號-1