【正文】 目 錄摘 要 ...........................................................................................................................................IABSTRACT.................................................................................................................................II第一章 前言 ................................................................................................................................1第二章 系統(tǒng)功能分析 ................................................................................................................2 系統(tǒng)功能概述 ....................................................................................................................2 系統(tǒng)要求及主要內(nèi)容 ........................................................................................................2第三章 系統(tǒng)總體設(shè)計 ................................................................................................................4 硬件電路設(shè)計思路 ............................................................................................................4 軟件設(shè)計思路 ....................................................................................................................4第四章 硬件電路設(shè)計 ................................................................................................................6 單片機模塊 ........................................................................................................................6 處理執(zhí)行元件 .............................................................................................................6 時鐘電路 ...................................................................................................................10 復(fù)位電路 ...................................................................................................................11 顯示電路 ...................................................................................................................12 霍爾傳感器簡介 ..............................................................................................................14 霍爾器件概述 ...........................................................................................................14 霍爾傳感器的應(yīng)用 ...................................................................................................15 AH41 霍爾開關(guān) ..........................................................................................................16 發(fā)送模塊 ..........................................................................................................................17第五章 軟件設(shè)計 ......................................................................................................................21 單片機轉(zhuǎn)速程序設(shè)計思路及過程 ..................................................................................21 單片機程序設(shè)計思路 ...............................................................................................21 單片機轉(zhuǎn)速計算程序 ...............................................................................................22 二十進(jìn)制轉(zhuǎn)換程序 ..................................................................................................23 程序設(shè)計 ..........................................................................................................................26第六章 系統(tǒng)調(diào)試 ......................................................................................................................28 硬件調(diào)試 ..........................................................................................................................28 軟件調(diào)試 ..........................................................................................................................29 綜合調(diào)試 ..........................................................................................................................31 故障分析與解決方案 ......................................................................................................31 結(jié)論與經(jīng)驗 ......................................................................................................................33第七章 結(jié)束語 ..........................................................................................................................34參考文獻(xiàn) ....................................................................................................................................35致謝 ............................................................................................................................................36轉(zhuǎn)矩轉(zhuǎn)速測量系統(tǒng)的研究與設(shè)計摘 要在工程實踐中，經(jīng)常會遇到各種需要測量轉(zhuǎn)速的場合，測量轉(zhuǎn)速的方法分為模擬式和數(shù)字式兩種。模擬式采用 測速發(fā)電機為檢測元件，得到的信號是模擬量。數(shù)字式通常采用光電編碼器，霍爾元件等 為檢測元件，得到的信號是脈沖信號。隨著微型 計算機的廣泛應(yīng)用，特 別是高性能價格比的 單片機的出現(xiàn)， 轉(zhuǎn)速測 量普遍采用以單片機為核心的數(shù)字式測量方法。本文便是運用 AT89C51 單片機控制的智能化轉(zhuǎn)速測量儀。電機在運行過程中，需要對其進(jìn)行監(jiān)控，轉(zhuǎn)速是一個必不可少的一個參數(shù)。本系統(tǒng)就是對電機轉(zhuǎn)速進(jìn)行測量，并可以和 PC 機進(jìn)行通信，顯示電機的轉(zhuǎn)速，并觀察電機運行的基本狀況。本設(shè)計主要用 AT89C51 作為控制核心，由霍爾傳感器、LED 數(shù)碼顯像管、HIN232CPE 電平轉(zhuǎn)換、及 RS232 構(gòu)成。詳細(xì)介紹了單片機的測量轉(zhuǎn)速系統(tǒng)及 PC 機與單片機之間的串行通訊。充分 發(fā)揮了單片機的性能。本文重點是測量速度并顯示在 5 位LED 數(shù)碼管上。其優(yōu)點硬件是電路簡單，軟件功能完善， 測量速度快、精度高、控制系統(tǒng)可靠，性價比較高等特點。關(guān)鍵詞：MSC51（單片機）； 轉(zhuǎn)速； 傳感器The Study and Design of Torque and Rotational Speed Measuring SystemABSTRACTIn the project practice, we will meet each kind to need frequently to survey the rotational speed the situation, the survey rotational speed method divides into the simulation type and the digital two kinds. The simulation type uses measured