資源描述：
《電機轉(zhuǎn)速測量電路》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、桂林電子科技大學(xué)課程設(shè)計論文第21頁共20頁課程設(shè)計(論文)說明書題目：電機轉(zhuǎn)速測量電路院（系）：信息與通信學(xué)院專業(yè)：電子科學(xué)與技術(shù)學(xué)生姓名學(xué)號：指導(dǎo)教師：何寧職稱：教授2012年12月20日21桂林電子科技大學(xué)課程設(shè)計論文第21頁共20頁摘要本文設(shè)計了一種基于AT89S52單片機的紅外線轉(zhuǎn)速測量系統(tǒng)。該系統(tǒng)的紅外發(fā)射與接收采用直射式，紅外發(fā)光管射出的紅外線通過圓盤的小孔照射到紅外探頭上，接收電路再經(jīng)過簡單的信號處理得到脈沖式的轉(zhuǎn)速信號。使用AT89S52單片機采樣脈沖信號并計算每分鐘內(nèi)脈沖信號的數(shù)目，即電機對應(yīng)的轉(zhuǎn)速值
2、，最終系統(tǒng)通過四位七段數(shù)碼管顯示電機每分鐘的轉(zhuǎn)速值。本文詳細分析了系統(tǒng)的組成及工作原理，給出了系統(tǒng)中各硬件模塊設(shè)計方法及系統(tǒng)軟件設(shè)計方法，給出了部分程序流程圖和程序清單。該測速系統(tǒng)安裝維護方便，工作穩(wěn)定，運行可靠，具有較大的推廣應(yīng)用價值。關(guān)鍵詞：轉(zhuǎn)速測量；紅外發(fā)射與接收；單片機AbstractAinfraredspeedmeasuringsystemwhichbasedontheMCUofAT89S52wasdesignedinthispaper.Theinfraredtransmitterandreceiverofth
3、esystemusedthedirecttype.TheinfraredlightemittedfromtheIRLEDpassedthroughtheholeinthedisctotheinfraredsensor,andthereceivercircuitoutputapulsedinfraredsignalbyasimplesignalprocessing.TheAT89S52wasusedtosamplethepulsesignalandcalculatetheamountofthepulsesignalperm
4、inutewhichwasthevalueofthemotorspeed.Finallythevalueofthemotorwouldbedisplayedreal-timebyfour-bitseven-segmentdigitaltube.Thecompositionandtheprincipleofthesystemarepresented,andthedesignmethodofhardwareandthesoftwarearealsopresented.Themeasurementsystemwillhavea
5、broadprospectsbecausetheconvenientinstallationandmaintenance,stableworking,reliableoperation.Keywords:Speedmeasurement;Infraredtransmitterandreceiver;MCU21桂林電子科技大學(xué)課程設(shè)計論文第21頁共20頁目錄引言································································31設(shè)計要求············
6、··········································41.1設(shè)計目的················································41.2設(shè)計內(nèi)容及要求·············································42轉(zhuǎn)速測量系統(tǒng)的原理·······································42.1轉(zhuǎn)速測量方法················································4
7、2.1.1M法(測頻法)··············································42.1.2T法(測周期法)············································52.1.3M/T法(頻率/周期法)·······································52.2轉(zhuǎn)速測量原理················································53系統(tǒng)概述··························
8、······················63.1轉(zhuǎn)動系統(tǒng)················································63.2信號采集及其處理············································63.3單片機處理電路··············
