本文選題：水泥　切入點：激光誘導擊穿光譜　出處：《西南科技大學》2015年碩士論文　論文類型：學位論文

【摘要】：隨著我國經濟建設的快速發(fā)展,水泥產業(yè)已達到相當大的規(guī)模,同時水泥的年產量還在不斷的增加。對水泥成分進行定性定量分析,是對水泥進行分類以及質量檢測的基本方法。相比現階段水泥成分的檢測方法,激光誘導擊穿光譜技術(Laser Induced Breakdown Spectroscopy,LIBS)具有檢測速度快,樣品制備簡單,一次測量可檢測多種元素,測量范圍廣,能夠檢測水泥樣品中的金屬以及非金屬元素等眾多優(yōu)點,非常適合于工業(yè)生產中水泥成分的快速檢測。本文首先介紹了國內外LIBS技術的發(fā)展,以及水泥成分的LIBS檢測方法研究。在分析了激光誘導擊穿光譜原理及特性基礎上,搭建了水泥成分的LIBS測量系統(tǒng),包括單脈沖激發(fā)與雙脈沖激發(fā)系統(tǒng)。通過對測量條件的實驗研究,討論了激光能量,積分延遲時間以及雙脈沖間隔時間等對水泥成分的LIBS光譜影響,得到水泥成分LIBS測量的最佳實驗參數。采用水泥成分的LIBS測量系統(tǒng),對水泥成分中的主要及微量元素進行了定性分析,同時以水泥中的Mg、Fe、Al、Cu四種元素為例,對它們進行了定量檢測,采用循環(huán)反演的方法對定量檢測誤差進行了分析。測量結果表明,利用激光誘導擊穿光譜技術對水泥成分進行檢測分析是可行的,具有較好的測量精度。
[Abstract]:With the rapid development of China's economic construction, the cement industry has reached a considerable scale, and the annual output of cement is still increasing. Qualitative and quantitative analysis of cement composition is carried out. Laser induced breakdown spectroscopy (LIBSs) has the advantages of fast detection speed, simple sample preparation, and can be used for the detection of many elements at one time, compared with the present method of cement composition detection, the laser induced breakdown spectroscopy (LIBSs) is the basic method for the classification and quality detection of cement. It is suitable for rapid detection of cement components in industrial production because of its wide range of measurements and its advantages of detecting metals and non-metallic elements in cement samples. This paper first introduces the development of LIBS technology at home and abroad. On the basis of analyzing the principle and characteristics of laser induced breakdown spectrum, a LIBS measuring system for cement composition was built. The effects of laser energy, integral delay time and double pulse interval on the LIBS spectra of cement are discussed. The optimum experimental parameters for LIBS measurement of cement composition were obtained. The main and trace elements in cement composition were qualitatively analyzed by using the LIBS measurement system of cement composition. At the same time, four kinds of elements in cement were taken as examples. The quantitative detection results show that it is feasible to detect and analyze the cement composition by laser induced breakdown spectroscopy. It has good measuring precision.
【學位授予單位】：西南科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TQ172.18

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本文編號：1597571