freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

鋼絲繩斷絲無損檢測(cè)裝置設(shè)計(jì)畢業(yè)設(shè)計(jì)-全文預(yù)覽

2024-09-23 19:24 上一頁面

下一頁面
  

【正文】 這種方法對(duì)現(xiàn)代工藝制造的鋼絲繩檢查效果越來越不理想,但目前許多鋼絲繩用戶仍然沿用此方法。當(dāng)鋼絲繩表面發(fā)生斷絲時(shí),由于應(yīng)力的作用使它向外發(fā)散,從而使斷絲露出繩外,這樣,最明顯、也是最原始的方法 ——人 工目視檢查法(國(guó)外稱之為rag. and. visual)應(yīng)運(yùn)而生。 隨著社會(huì)經(jīng)濟(jì)的高速發(fā)展,港口、礦山、建筑及其它行業(yè)的起重牽引設(shè)備日趨大型化,鋼絲繩越來越長(zhǎng),直徑不斷增大。 ADC0809 ..................................................................................15 167。 LM741 運(yùn)算放大器 ......................................................10 167。 感應(yīng)法 ............................................................................ 5 167。 關(guān) 鍵 詞 :鋼絲繩,霍爾傳感器, 放大, 濾波, A/D 轉(zhuǎn)換,單片機(jī) 河南科技大學(xué)畢業(yè)設(shè)計(jì)(論文) IV BROKEN WIRE ROPE NONDESTRUCTIVE TESTING DEVICE DESIGN ABSTRACT With the continuous development of society, the application of wire rope is increasingly wide at the same time more and more people concerns their design of realtime online monitoring of wire rope for broken wires, introduced the classification of wire rope nondestructive testing and nondestructive testing and trends in the development process. The design is based on magic flux leakage principle, the use of Hall sensors to detect magic flux leakage signals, magic flux leakage sensor analog signal that directly to the circuit input voltage signal, through followup circuit and software processing, Wire Ropes pleted the task of designing nondestructive testing . Signal processing system consists of three operational amplifiers with high mon mode rejection ratio amplifier and low pass filter circuits, the realization of Wire Ropes signal amplification and filtering, through the amplification, filtering the processed signal through the ADC0809 for A / D conversion, converted data access microcontroller AT89C51, through software programming, the MCU control LED displays the voltage value, and by the number of LED lights to judge the situation Wire Ropes. First of all programs written in the Proteus simulation software, in theory, AD conversion and data to achieve the basic functions. In the simulation based on the schematic drawing of the system built in the universal test circuit board, and has been debugged, to achieve the desired objectives. This design not only to detect internal defects in steel wire rope and wire rope metal cross section can be quantitatively detected. Online real time detection of all rope, high efficiency, free from anthropogenic influence factors, 河南科技大學(xué)畢業(yè)設(shè)計(jì)(論文) V bined with manual inspection and quantitative analysis of test data to evaluate the extent and intensity of wire rope damage losses. KEY WORDS: Wire rope ,Hall sensor, Amplifying ,Filtering,A / D conversion, SCM 河南科技大學(xué)畢業(yè)設(shè)計(jì)(論文) VI 目 錄 前 言 ....................................................................................................... 1 第 1 章 鋼絲繩無損檢測(cè)的分類 ........................................................... 2 第 2 章 鋼絲繩無損檢測(cè)裝置設(shè)計(jì) ....................................................... 3 167。本設(shè)計(jì)基于漏磁原理,利用霍爾傳感器檢測(cè)漏磁信號(hào),采用模擬的傳感器漏磁信號(hào),即直接給電路輸入電壓信號(hào),經(jīng)過后續(xù)電路和軟件處理后,完成了鋼絲繩斷絲無損檢測(cè)的設(shè)計(jì)任務(wù) 信號(hào)處理系統(tǒng)主要由三運(yùn)放高共模抑制比放大電路和低通濾波電路構(gòu)成,實(shí)現(xiàn)了對(duì)鋼絲繩斷絲信號(hào)的放大和濾波,經(jīng)過放大、濾波處理后的信號(hào)經(jīng)過 ADC0809 進(jìn)行 A/D 轉(zhuǎn) 換,轉(zhuǎn)換后的數(shù)據(jù)接入單片機(jī) AT89C51,經(jīng)過軟件編程后,單片機(jī)控制數(shù)碼管將電壓數(shù)值顯示出來,并通過 LED 燈亮的多少來判斷鋼絲繩斷絲情況 編寫的程序首先在 Proteus 軟件上進(jìn)行仿真,在理論上實(shí)現(xiàn) AD轉(zhuǎn)換和數(shù)據(jù)顯示的基本功能。對(duì)本研究提供過幫助和做出過貢獻(xiàn)的個(gè)人或集體,均已在文中作了明確的說明并表示了謝意。盡我所知,除文中特別加以標(biāo)注和致謝的地方外,不包含其他人或組織已經(jīng)發(fā)表或公布過的研究成果,也不包含我為獲得 及其它教育機(jī)構(gòu)的學(xué)位或?qū)W歷而使用過的材料。為了實(shí)時(shí)在線監(jiān)測(cè)鋼絲繩斷絲,介紹了鋼絲繩無損檢測(cè)的分類和無損檢測(cè)的發(fā)展歷程和趨勢(shì)??蓪?shí)時(shí)在線全繩檢測(cè),檢測(cè)效率高,基本不受人為因數(shù)影響,結(jié)合人工檢查和檢測(cè)數(shù)據(jù)定量分析可評(píng)估鋼絲繩損傷程度和強(qiáng)度損失情況。 檢測(cè)元件 .................................................................................. 5 167。 放大電路 .................................................................................. 8 167。 AT89C51 ...................................................................................13 167。然而,鋼絲繩作為一種工程承載構(gòu)件,在使用過程中,由于種種原因必然會(huì)發(fā)生疲勞、銹蝕、磨損甚至驟斷等現(xiàn)象,其操作程序及承載能力直接關(guān)系到設(shè)備及人身安全。 河南科技大學(xué)畢業(yè)設(shè)計(jì)(論文) 2 第 1 章 鋼絲繩無損檢測(cè)的分類 傳統(tǒng)的鋼絲繩檢測(cè)方法是人工目視掛紗檢查斷絲,用卡尺測(cè)量直徑。因此這種方法有許多不足之處。鋼絲繩無損檢測(cè)技術(shù)正是在不破壞鋼絲繩結(jié)構(gòu)的情況下,應(yīng)用一定的
點(diǎn)擊復(fù)制文檔內(nèi)容
環(huán)評(píng)公示相關(guān)推薦
文庫吧 www.dybbs8.com
備案圖鄂ICP備17016276號(hào)-1