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基于ARM的微庫侖綜合分析儀的研究

發(fā)布時間:2018-01-20 17:24

  本文關鍵詞: 微庫侖分析法 嵌入式系統(tǒng) ARM Windows Embedded CE6.0 出處:《南京信息工程大學》2013年碩士論文 論文類型:學位論文


【摘要】:微庫侖分析法是一種檢測石油、化工產品和其它有機及無機化合物中硫、氯、氮等元素含量的方法,其特點是靈敏度高、精密度高、反應速度快和具有較強的抗干擾能力。隨著科技的不斷發(fā)展,國內對微庫侖分析儀的使用日趨廣泛,但已有微庫侖分析儀主要是通過單片機控制,其滴定過程的操作是依靠PC機完成,每臺微庫侖分析儀需配備一臺PC機;诖,研究和設計一款高精度、小體積、易操作和高性價比的微庫侖綜合分析儀的系統(tǒng)顯得尤其必要。 本論文針對已有微庫侖分析儀在體積、可靠性等方面存在的問題,設計了嵌入式微庫侖綜合分析儀的軟硬件系統(tǒng)。 利用ARM11嵌入式微處理器和Windows Embedded CE6.0操作系統(tǒng)的基本架構,選擇數據處理能力強的ARM11微處理器作為微庫侖分析儀的核心處理器,通過移植、定制實時的嵌入式操作系統(tǒng)Windows Embedded CE6.0為微庫侖分析儀提供軟件運行平臺。 本設計由主機控制部分、進樣器、攪拌器、溫度及流量控制器、裂解爐、電解池及上位機操作界面幾部分組成。硬件設計主要包括數據采集電路、庫侖放大器、積分電路設計、背壓檢測電路、進樣電路、質量流量控制電路及主控電路等模塊;軟件設計在移植Windows Embedded CE6.0嵌入式操作系統(tǒng)的基礎上,實現數據實時采集、積分起始點和結束點的判定、峰形面積的計算、滴定曲線的繪制、樣品含量的分析等庫侖測量功能及人機交互操作界面。 經實驗驗證,該微庫侖綜合分析儀實現了小型化、一體化,具有精度較高、系統(tǒng)運行穩(wěn)定等特點,可以測量固體、液體、氣體中的硫、氯、氮等元素的含量,能夠滿足石油化工業(yè)、冶金煤炭業(yè)、食品衛(wèi)生、環(huán)保等相關領域的測量要求。
[Abstract]:Microcoulometry is a method for the determination of sulfur, chlorine and nitrogen in petroleum, chemical products and other organic and inorganic compounds. Its characteristics are high sensitivity and high precision. With the development of science and technology, the microcoulomb analyzer is widely used in our country, but the microcoulomb analyzer has been controlled by single chip microcomputer. The operation of the titration process depends on PC, each microcoulomb analyzer needs to be equipped with a PC. Based on this, a high precision and small volume is studied and designed. The system of microcoulomb comprehensive analyzer with easy operation and high cost-performance ratio is especially necessary. In this paper, the hardware and software system of embedded microcoulomb comprehensive analyzer is designed to solve the problems in volume and reliability of existing microcoulomb analyzer. The basic architecture of ARM11 embedded microprocessor and Windows Embedded CE6.0 operating system is used. The ARM11 microprocessor with strong data processing ability is selected as the core processor of the microcoulomb analyzer. Windows Embedded CE6.0, a customized embedded operating system, provides a software platform for microcoulomb analyzer. The design is composed of host control part, sampler, agitator, temperature and flow controller, cracking furnace, electrolytic cell and upper computer operation interface. The hardware design mainly includes data acquisition circuit. Coulomb amplifier, integral circuit design, back voltage detection circuit, sample injection circuit, mass flow control circuit and main control circuit module; On the basis of transplanting the Windows Embedded CE6.0 embedded operating system, the software design realizes the real-time data collection, the judgment of the starting point and the ending point of the integral. Calculation of peak area, drawing of titration curve, analysis of sample content and other Coulomb measurement functions and man-machine interactive operation interface. The experimental results show that the microcoulomb comprehensive analyzer can realize miniaturization, integration, high precision and stable operation of the system. It can measure the contents of sulfur, chlorine and nitrogen in solid, liquid and gas. Able to meet the requirements of petrochemical industry, metallurgical and coal industry, food hygiene, environmental protection and other related areas.
【學位授予單位】:南京信息工程大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:TH83;TP368.1

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