發(fā)布時(shí)間：2019-03-14 21:17

【摘要】：光譜儀作為一種重要的光學(xué)儀器設(shè)備,高的波長(zhǎng)分辨率、大的測(cè)量范圍是在科研應(yīng)用中關(guān)注的重要技術(shù)指標(biāo)。然而,隨著社會(huì)發(fā)展和科學(xué)技術(shù)進(jìn)步,在許多應(yīng)用領(lǐng)域,例如食品藥品安全、環(huán)境監(jiān)測(cè)等,對(duì)光譜儀的低成本和便攜性提出了更高的要求。因此,光譜儀的小型化和微型化成為其主要發(fā)展方向之一基于上述背景,本論文以STS微型模塊為核心,圍繞光譜數(shù)據(jù)采集過(guò)程中的波長(zhǎng)標(biāo)定、噪聲處理和動(dòng)態(tài)工作范圍,開展光譜測(cè)試軟件設(shè)計(jì)：首先詳細(xì)分析了STS微型模塊工作原理及其通信協(xié)議,在Visual C++6.0集成開發(fā)環(huán)境下、選擇C++面向?qū)ο笳Z(yǔ)言進(jìn)行了STS微型模塊光譜測(cè)試軟件設(shè)計(jì)開發(fā),圖形顯示部分采用TeeChart Pro控件進(jìn)行圖像繪制,實(shí)現(xiàn)了采集參數(shù)設(shè)置、光譜信號(hào)獲取、光譜原始數(shù)據(jù)和光譜曲線的顯示、存儲(chǔ)等功能。然后針對(duì)STS采集到的原始光譜數(shù)據(jù)的特點(diǎn)對(duì)其進(jìn)行一系列處理。波長(zhǎng)標(biāo)定方面,通過(guò)獲取STS微型模塊內(nèi)置參數(shù),建立ELIS-1024傳感器像素點(diǎn)位置與波長(zhǎng)的對(duì)應(yīng)關(guān)系,從而響應(yīng)用戶對(duì)波長(zhǎng)測(cè)量范圍的設(shè)定需求；噪聲處理方面,在不同傳感器積分時(shí)間參數(shù)設(shè)定條件下,對(duì)背景噪聲進(jìn)行統(tǒng)計(jì)測(cè)量,計(jì)算出均值和方差,因此,測(cè)量數(shù)據(jù)減去噪聲均值后為實(shí)際值,方差代表測(cè)量誤差；動(dòng)態(tài)工作范圍調(diào)整方面,通過(guò)選擇適當(dāng)?shù)膫鞲衅鞣e分時(shí)間參數(shù),以適應(yīng)強(qiáng)弱不同的被測(cè)信號(hào)。最后通過(guò)實(shí)驗(yàn)對(duì)應(yīng)用軟件進(jìn)行了詳細(xì)的功能測(cè)試,實(shí)驗(yàn)結(jié)果表明該軟件能夠較好的實(shí)現(xiàn)光譜測(cè)試的目的,界面簡(jiǎn)潔、操作方便,成功滿足了預(yù)期的設(shè)計(jì)要求。
[Abstract]:Spectrometer, as an important optical instrument, has high wavelength resolution and wide measurement range, which is an important technical index in the application of scientific research. However, with the development of society and the progress of science and technology, the low cost and portability of spectrometer is required in many application fields, such as food and drug safety, environmental monitoring and so on. Therefore, the miniaturization and miniaturization of the spectrometer has become one of its main development directions. Based on the above background, this paper focuses on the STS micro-module, focusing on wavelength calibration, noise processing and dynamic range of work in the process of spectral data acquisition. Design of spectrum testing software: firstly, the working principle and communication protocol of STS micro module are analyzed in detail. Under the integrated development environment of Visual C 6.0, the spectrum test software of STS micro module is designed and developed with C object oriented language. In the graphic display part, the TeeChart Pro control is used to draw the image, which realizes the setting of the acquisition parameters, the acquisition of the spectral signals, the display and storage of the spectral original data and the spectral curves, and so on. Then according to the characteristics of the original spectral data collected by STS, a series of processing is carried out. In the aspect of wavelength calibration, by obtaining the built-in parameters of STS micro-module, the corresponding relationship between pixel position and wavelength of ELIS-1024 sensor is established, so as to respond to the user's demand for setting the range of wavelength measurement. In noise processing, the background noise is measured statistically under different sensor integration time parameters, and the mean value and variance are calculated. Therefore, the measurement data is subtracted from the noise mean value and the variance represents the measurement error. In the aspect of dynamic range adjustment, appropriate sensor integration time parameters are selected to adapt to different measured signals. Finally, the application software is tested in detail through the experiment. The experimental results show that the software can achieve the purpose of spectrum testing better, the interface is simple, the operation is convenient, and the software successfully meets the expected design requirements.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TH744.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 劉俸維,張建中;動(dòng)態(tài)對(duì)象數(shù)組的兩種C++實(shí)現(xiàn)及其性能分析[J];成都信息工程學(xué)院學(xué)報(bào);2004年02期

2 孫振東,萬(wàn)峰,趙玉春,范世福;光纖光度分析儀設(shè)計(jì)的有關(guān)問(wèn)題[J];分析儀器;2000年01期

3 黎國(guó)梁;蹇華麗;姚志湘;宋光均;;微小型光纖光譜儀在過(guò)程監(jiān)測(cè)中的應(yīng)用[J];現(xiàn)代科學(xué)儀器;2008年04期

4 王偉蘭;談圖;汪磊;高曉明;;基于線陣CCD的光譜信號(hào)高速數(shù)據(jù)采集系統(tǒng)設(shè)計(jì)[J];儀表技術(shù)與傳感器;2011年11期

5 劉麗梅,孫玉榮,李莉;中值濾波技術(shù)發(fā)展研究[J];云南師范大學(xué)學(xué)報(bào)(自然科學(xué)版);2004年01期

相關(guān)碩士學(xué)位論文 前1條

1 張輝;基于AOTF技術(shù)的近紅外光譜分析系統(tǒng)的研制[D];中國(guó)農(nóng)業(yè)機(jī)械化科學(xué)研究院;2005年

，

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