智能型紙張平滑度測(cè)試儀

論文編號(hào):ZD1281  論文字?jǐn)?shù):21381,頁(yè)數(shù):43  附原理圖，外文翻譯

 摘 要
 隨著社會(huì)經(jīng)濟(jì)文化的發(fā)展，印刷品已成為人們?nèi)粘Ｉ�活的必需品。它在文化傳播，新聞�?bào)道，以及產(chǎn)品宣傳等都起到了不可替代的作用。因此提高印刷品的質(zhì)量具有重要的現(xiàn)實(shí)意義。紙張作為印刷品的主要原材料，它的性能如何直接決定了印刷品的質(zhì)量。平滑度是評(píng)價(jià)紙張表面凹凸程度的重要技術(shù)指標(biāo)，是表示紙張表面平整、光滑和均勻程度的物理量，紙張平滑度越好，印刷時(shí)紙面與印版間的接觸也就越均勻和完整，版面(凸版)或橡皮布上的墨層轉(zhuǎn)移也越充分，印刷品呈色效果也越好。因此如何評(píng)價(jià)紙張的平滑度在工程上就具有了重要的現(xiàn)實(shí)意義。
 本文研制的智能型紙張平滑度測(cè)試儀是根據(jù)別克法設(shè)計(jì)的，它將計(jì)算機(jī)和儀器有機(jī)的結(jié)合在一起。該測(cè)試儀以89C51單片機(jī)為核心并外接壓力傳感裝置和其它芯片的計(jì)算機(jī)系統(tǒng)。它包括多個(gè)功能模塊電路，但它們都是在89C51單片機(jī)控制下進(jìn)行工作的。各功能模塊主要與CPU進(jìn)行聯(lián)系，其相互間聯(lián)系相對(duì)較少，這樣就降低了系統(tǒng)的復(fù)雜程度，同時(shí)也提高了工作效率。
 為了適應(yīng)現(xiàn)代生產(chǎn)及測(cè)試的要求，本論文研制的紙張平滑度測(cè)試儀的主要特點(diǎn)是：相對(duì)傳統(tǒng)的模擬測(cè)試儀器更加準(zhǔn)確，快速，體積更小，便于操作和維護(hù)，因此它能更好的完成紙張平滑度測(cè)試的工作。
 
 
關(guān)鍵詞： 別克法 紙張平滑度 壓力傳感器 單片機(jī)89C51  單相交流電機(jī)

 
 Abstract
 With the development of the economy and culture, the presswork had been the necessity to the people .it can not be substituted in civilization- spread, news-reported, advertisement of product and so on. so it is important to improve the quality of the presswork .as the main materials of presswork, the capability of the paper determine the quality of the paper directly the smoothness degree of the paper is a very important factor to judge the concave and protrude of the paper .and it is also a physical factor show smooth, velvet and uniformity of the paper surface .the more smooth the paper is ,the more smooth and the integrity when the paper and the forme touch., and the printing ink will displace more fill in the forme or the mackintosh and the presswork will also be better .so how to eva luate the smooth of the paper has been very important .
 The paper smooth analyzer is a production of organic combination of micro-computer and instrument by bekk .this analyzer is in core of AT89C51 and meet other chips and pressure sensor. it includes more function modules, which work under control of AT89C51 single chip machine .each module mainly make contact with CPU in order to reduce the complexity of the system .the analyzer adopts module construction to expand function.
 This paper smooth analyzer suits the demand of modern production and test .Compared to the tradition analogy analyzer its main characteristic is more exactness, more swift, more light, convenient to operate and vindicate. so it will achieve the work of product and test better.
 
 
 Key words: bekk smooth of paper   pressure sensor   AT89C51 
 single-phase AC electromotor  
 
  目錄
 
1 緒論…………………………………………………………………………… 4
2方案論證……………………………………………………………………… 5
3測(cè)試儀的整體設(shè)計(jì)…………………………………………………………… 6
4測(cè)試儀硬件電路的設(shè)計(jì)……………………………………………………… 8
 4.1傳感器的選擇和設(shè)計(jì)………………………………………………………8
 4.2信號(hào)的放大及濾波…………………………………………………………9
 4.2.1信號(hào)的放大……………………………………………………………9
 4.2.2信號(hào)的濾波…………………………………………………………10
4.3單片機(jī)接口的設(shè)計(jì)……………………………………………………………12
 4.3.1 A/D轉(zhuǎn)換器的設(shè)計(jì)………………………………………………………12
 4.3.2顯示器及驅(qū)動(dòng)裝置的設(shè)計(jì)………………………………………………13
 4.3.3程序存儲(chǔ)器的設(shè)計(jì)………………………………………………………15
 4.3.4鍵盤的設(shè)計(jì)………………………………………………………………16
4.4單片機(jī)及其外圍電路的設(shè)計(jì)…………………………………………………17
 4.4.1單片機(jī)的選擇……………………………………………………………17
 4.4.2電源的設(shè)計(jì)………………………………………………………………18
 4.4.3控制功率放大電路的設(shè)計(jì)………………………………………………18
 4.4.3.1過零檢測(cè)電路………………………………………………………18
 4.4.3.2過零觸發(fā)電路………………………………………………………19
 4.4.3.3電磁閥及其驅(qū)動(dòng)……………………………………………………20
5測(cè)試儀控制算法及應(yīng)用軟件的設(shè)計(jì)……………………………………………21
 5.1控制算法的設(shè)計(jì)……………………………………………………………21
 5.2應(yīng)用軟件的設(shè)計(jì)……………………………………………………………31
 5.2.1數(shù)據(jù)采集程序的設(shè)計(jì)……………………………………………………31
 5.2.2計(jì)時(shí)顯示程序的設(shè)計(jì)……………………………………………………35
 5.2.3鍵盤查詢程序的設(shè)計(jì)……………………………………………………40
致謝…………………………………………………………………………………41
參考文獻(xiàn)……………………………………………………………………………42
附錄…………………………………………………………………………………43