【正文】 47 頁 1 硬件電路 設(shè)計(jì)要求 設(shè)計(jì)并制作一 臺(tái) 數(shù)字顯示的電阻、電容和電感參數(shù)測(cè)試儀， 具體要求數(shù)據(jù)如下： （ 1） 測(cè)量范圍：電阻 100? ~1M? ；電容 100PF~10000PF；電感 100UH~10mH。一般的測(cè)量方法都存在計(jì)算復(fù)雜、不易實(shí)現(xiàn)自動(dòng)測(cè)量而且很難實(shí)現(xiàn)智能化。AT89S52。 can be accurately measured resistors, capacitors, inductors of the parameters, while adding Voice of the broadcast function can be automatically converted range of the resistance, not artificial selection stalls。 本課題主要研究內(nèi)容為設(shè)計(jì)一個(gè) 基于單 片 機(jī)的 RLC 智能測(cè)量儀器，能夠智能地識(shí)別出待測(cè)元件是電容、電感還是電阻；能精確測(cè)量出電阻、電容、電感的參數(shù)值，同時(shí)還能加入語音播報(bào)的功能；可以實(shí)現(xiàn)量程電阻的自動(dòng)轉(zhuǎn)換，無須人工選擇檔位；對(duì)測(cè)量儀進(jìn)行擴(kuò)充后還實(shí)現(xiàn)了二極管、三極管的 測(cè)量?；趩纹瑱C(jī)控制實(shí)現(xiàn)的 RLC 測(cè)量儀可以在線測(cè)量、智能 識(shí)別 、量程自動(dòng)轉(zhuǎn)換等多種功能，大大提高測(cè)量儀的測(cè)量速度和精度，擴(kuò)大了測(cè)量范圍。 編號(hào)： 畢 業(yè) 設(shè) 計(jì) 題 目： 電阻、電容、電感測(cè)試儀 院 （系）： 應(yīng)用科技 學(xué)院 專 業(yè)： 電子信息工程 題目類型： ?理論研究 ?實(shí)驗(yàn)研究 ?工程設(shè)計(jì) ?工程技術(shù)研究 ?軟件開發(fā) 桂林電子科技大學(xué)畢業(yè)設(shè)計(jì)（論文）報(bào)告用紙 摘 要 在使用電子元器件 時(shí) ，首先 需要 了解參數(shù) 。 采用傳統(tǒng)的儀表進(jìn)行測(cè)量時(shí)，首先要從電路板上焊開器件，再根據(jù)元件的類型，手動(dòng)選擇量程擋位進(jìn)行測(cè)量，這樣不僅麻煩而且破壞了電路板的 美觀 。因此這種 RLC 測(cè)量儀既可改善系統(tǒng)測(cè)量的性能，又保持了印刷電路的美觀，較傳統(tǒng)的測(cè)量儀還具有高度的智能儀和功能的集成化，在未來的應(yīng)用中將具有廣闊的前景。 關(guān)鍵詞： RLC 測(cè)量儀 ； AT89S52； NE555 桂林電子科技大學(xué)畢業(yè)設(shè)計(jì)（論文）報(bào)告用紙 Abstract In the use of electronic ponents, the first need to understand parameters. Using the traditional instrument to measure, the first circuit board from a welding device, according to the type of ponents, manually select range Shift to measure, this is not only troublesome but also undermine The appearance of the circuit board. Based on SCM control to achieve the RLCmeasuring instrument can measure, intelligent identification, range automatic conversion, and other features, thereby greatly increasing the meter measuring speed and accuracy, expanded the range. So this RLC measuring instrument can improve the performance measurement system, and maintain the appearance of the printed circuit, the more traditional measuring instrument also is highly intelligent and functional instrument of integration and application in the future will have broad prospects. The main topics for the design of research has been based on the RLC SCM smart measuring instruments, smart and able to identify ponents under test is capacitors, inductors or resistance。 measuring instrument to carry out the expanded also to achieve the diodes, transistors measurement. Key words： RLC meter。NE555 桂林電子科技大學(xué)畢業(yè)設(shè)計(jì)（論文）報(bào)告用紙 目 錄 引言 ...............................................................................................................1 1 硬件電路 ..................................................................................................2 設(shè)計(jì)要求 ............................................................................................................................ 2 電路方框圖及說明 ............................................................................................................ 2 各部分電路設(shè)計(jì) ................................................................................................................ 2 電阻測(cè)量電路 ................................................................................................................ 2 電容測(cè)量電路 ................................................................................................................ 3 電感測(cè)量電路 ................................................................................................................ 4 多路選擇開關(guān)電路 ........................................................................................................ 4 按鍵及顯示電路 ............................................................................................................ 5 單片機(jī)模塊 .................................................................................................................... 6 量程選擇模塊 ................................................................................................................ 7 電源模塊 ........................................................................................................................ 8 2 軟件部分 ..................................................................................................8 主程序流程圖 .................................................................................................................... 8 程序清單 ............................................................................................................................ 9 3 相關(guān)元器件 ............................................................................................ 19 元件清單 .......................................................................................................................... 19 AT89S52 資料 ................................................................................................................... 20 ICM7218 資料 ................................................................................................................... 31 74LS390 資料 ................................................................................................................... 32 CD4052 資料 ..................................................................................................................... 33 NE555 資料 ....................................................................................................................... 33 共陽 4 位 LED 數(shù)碼管資料 .............................................................................................. 39 三極管相關(guān)資料 .............................................................................................................. 40 三端穩(wěn)壓管 LM7805 資料 ................................................................................................ 41 繼電器資料 .................................................................................................................... 42 4 調(diào)試總結(jié) ...............................................................................