直流電機(jī)測(cè)速儀
摘 要：本文介紹了電機(jī)測(cè)速儀的設(shè)計(jì)和它的基本功能。本課程設(shè)計(jì)用霍爾元件和單片機(jī)測(cè)量電動(dòng)機(jī)轉(zhuǎn)速，要求學(xué)生對(duì)霍爾元件和單片機(jī)有相當(dāng)深刻的了解。通過(guò)本次課程設(shè)計(jì)，不僅要掌握霍爾元件的用法，學(xué)會(huì)單片機(jī)編程，而且對(duì)硬件電路的連接、電路板的焊接都要熟練的掌握。課程設(shè)計(jì)主要培養(yǎng)學(xué)生的實(shí)際動(dòng)手能力，讓學(xué)生自己動(dòng)手制作一些功能簡(jiǎn)單的的單片機(jī)應(yīng)用系統(tǒng)，使課堂知識(shí)和應(yīng)用相結(jié)合，全面的掌握單片機(jī)，為將來(lái)步入工作崗位打下堅(jiān)實(shí)的基礎(chǔ)。
本課程的任務(wù)是使學(xué)生對(duì)單片機(jī)的工作原理和應(yīng)用有深入的理解；深刻理解單片機(jī)的概念和基本要素；掌握單片機(jī)系統(tǒng)軟硬件設(shè)計(jì)的基本方法；跟蹤單片機(jī)最新設(shè)計(jì)理念；實(shí)踐單片機(jī)項(xiàng)目開(kāi)發(fā)基本流程；為深入開(kāi)展單片機(jī)相關(guān)科研項(xiàng)目研究奠定良好的基礎(chǔ)。
關(guān)鍵詞: 電機(jī)測(cè)速儀，霍爾傳感器，單片機(jī)
Abstract：This paper introduces the design of electrical velocimetry and its basic features. This course is designed to single-chip measurement of the Hall element and motor speed, requires students to single-chip Hall element and a considerable understanding of the profound. Through the curriculum design, not only to master the usage of the Hall element, Institute of Single-chip programming, hardware circuit and connected to the welding circuit boards have to be skilled. Curriculum design major students of the actual practical ability to enable students to produce some of the features do-it-yourself simple application of the single-chip system for the application of classroom knowledge and the combination of a comprehensive master MCU,
Into jobs for the future and lay a solid foundation.
This course's mission is to enable students to work on single-chip application of the principles and have an in-depth understanding; a deep understanding of the concept of SCM and the basic elements; single-chip microcomputer system hardware and software to master the basic methods of design; to track the latest single-chip design philosophy; the practice of the basic single-chip project development process; to carry out single-chip for in-depth study of relevant research projects to lay a good foundation.
Keyword: electrical velocimetry，Hall sensor，，single-chip






目錄
1．前言 1
2．方案比較 2
2.1 方案一 2
2.2 方案二 2
2.3 方案論證與選擇 3
4．單元模塊電路方案設(shè)計(jì) 4
3.1 速度檢測(cè)部分 4
3．1.1 傳感檢測(cè) 4
3.2單片機(jī)最小系統(tǒng) 4
3.2.1 主控器STC89C52 5
3.2.2 時(shí)鐘電路 7
3.2.3 復(fù)位電路 7
3.3 下載部分 8
3.3．1 RS-232接口與單片機(jī)串行通信基本原理 8
3.3.2 RS-232串行通信接口電路 8
3.4 數(shù)碼顯示部分 9
3.4.1 LED結(jié)構(gòu)與原理 10
3.4.2　LED顯示器顯示方式 11
4．特殊器件補(bǔ)充介紹和選擇 13
4.1 開(kāi)關(guān)型霍爾傳感器介紹 13
4.1.1 開(kāi)關(guān)型霍爾傳感器工作原理 13
4.1.2 開(kāi)關(guān)型霍爾傳感器的應(yīng)用 13
4.2 MAX232介紹 14
5. 軟件設(shè)計(jì) 16
6. 調(diào)試 18
7. 設(shè)計(jì)總結(jié) 19
7.1 系統(tǒng)功能和結(jié)論 19
7.2 總結(jié)和體會(huì) 19
8. 參考文獻(xiàn) 20
9． 附錄 21
9．1 附錄1：設(shè)計(jì)總電路圖 21
9.2 附錄2：軟件代碼 22