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基于QT的核譜數據采集軟件設計

時間:2019-06-21 19:34來源:畢業論文
C++編寫出基于QT的譜數據采集軟件,從伽瑪能譜儀測量所需要的功能出發,將軟件按功能模塊分為了六大模塊:文件操作、數據采集、譜線分析、能量刻度、儀器標定和幫助。在數據采集

摘要:    分析γ能譜獲知放射性核素的種類和活度,成為放射性核素分析的主要方法之一。隨著電子工業和材料科學的發展,采集的γ能譜越來越復雜,加上人們對核素分析的復雜度、精確度及方便快捷性要求的提高,借助于計算機的自動能譜分析技術成為必要。而基于QT的譜分析軟件由于其適用于多種平臺更加備受青睞。
本項目通過C++編寫出基于QT的譜數據采集軟件,從伽瑪能譜儀測量所需要的功能出發,將軟件按功能模塊分為了六大模塊:文件操作、數據采集、譜線分析、能量刻度、儀器標定和幫助。在數據采集模塊,設計了串口通信模式供分析人員使用。在譜線光滑方面,設計了算術平滑算法、最小二乘算法、重心法對數據進行平滑,并且設計了平滑區域選擇,平滑次數選擇以及1、3、5、7、9、11、13、15的平滑因子選擇項,以方便分析人員根據譜線的實際形態進行選擇,增加分析數據的準確性;在尋峰方面,采用了對稱零面積變換法, 能比較準確的實現譜峰的尋找。在能量刻度方面,采用最小二乘擬合法來進行擬合,能夠比較準確的實現能量刻度。文章最后對已完成的工作做了總結,指出了其中存在的不足。產品需要在實際應用中不斷提出問題并加以完善。
畢業論文關鍵詞:    QT;qwt;核譜數據采集
The Design of Spectrum Data Acquisition Software based on QT
Abstract:     Analysis of gamma energy spectrum analysis of radioactive nuclide types and activity, become one of the main methods of radioactive nuclide analysis. With the development of electronic industry and materials science, collection of gamma energy spectrum is more and more complex, and the analysis of nuclide the complexity of the improvement of speed, accuracy and convenience, with the help of the computer automatic spectrum analysis technology is necessary. The spectral analysis software based on QT more popular due to its applicable to a variety of platforms. 源`自!六^維"論^文;網www.aftnzs.live
This project by c + + write a spectrum analysis software based on QT, starting from the features of gamma spectrometer measuring need, the software according to the function module is pided into six modules: file operation, data acquisition, spectrum analysis, the energy calibration, instrument calibration, and help. In the data acquisition module, design the serial and USB communication mode for analysts to choose from. Reproduction lines smooth, the smoothing algorithm, designed the arithmetic method of least squares algorithm, center of gravity data smoothly, to choose and design the smooth area, smooth frequency selection and 1, 3, 5, 7, 9, 11, 13, 15 smoothing factor options, to facilitate analysis personnel to undertake choosing according to the actual shape of the spectral lines, increase the accuracy of the data analysis. In terms of seeking peak, adopted the symmetric zero area transformation method, can achieve more accurate spectral peak searching. In the aspect of energy scale, using the least squares fitting to fitting, can achieve more accurate power calibration. The paper made a summary of completed work, pointed out that there are insufficient. Products need to continuously put forward problems in practical application and perfect.
Keywords:    QT;qwt;spectrum analysis
目錄
摘要    ii
Abstract    i
1 緒論    6
1.1 課題背景和意義    6
1.2 研究狀況    7
1.3 課題的主要研究工作    7
1.4 本章小結    8
2 伽馬能譜測量分析的理論基礎    9
2.1 核譜數據測量工作原理    9
2.2 伽馬能譜的構成    9
2.3 本章小結    11
3 用戶應用程序開發及開發環境配置    12 基于QT的核譜數據采集軟件設計:http://www.aftnzs.live/tongxin/20190621/34983.html
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