TDLAS分析儀譜圖微緩形變的復(fù)原算法
發(fā)布時間：2019-03-26 09:50
【摘要】：為了減小譜圖的微緩形變對TDLAS氣體分析儀精度的影響,提出一種傳遞復(fù)原方案.該方案通過比對校驗氣體的出廠校準(zhǔn)譜圖和現(xiàn)場測量譜圖,得到其形變系數(shù);由于校驗氣體與過程氣體間擁有相同的形變機制,根據(jù)形變的傳遞性可將過程氣體的實時譜圖也復(fù)原到校準(zhǔn)狀態(tài),從而維持分析儀的保真度.解決了動態(tài)過程氣體譜圖形變的復(fù)原問題,不需調(diào)節(jié)光學(xué)和電子系統(tǒng)硬件參數(shù),通過信號濾波、特征提取、形變系數(shù)計算,使用拉格朗日插值公式或Sinc函數(shù)插值法復(fù)原.在仿真實驗中,傳遞復(fù)原的譜圖與校準(zhǔn)譜圖的相似度達(dá)到99.999%.實驗采集不同程度形變的CO_2氣體譜圖,采用拉格朗日插值復(fù)原算法的復(fù)原譜圖與校準(zhǔn)譜圖的相似度達(dá)到99.9%.
[Abstract]:In order to reduce the influence of the micro-slow deformation of the spectrogram on the accuracy of the TDLAS gas analyzer, a transfer recovery scheme is proposed. According to the scheme, the deformation coefficient of the process gas is obtained by comparing the factory calibration spectrum and the on-site measurement spectrum of the calibration gas, and the real-time spectrogram of the process gas can be restored to the calibration state according to the transmission property of the deformation due to the same deformation mechanism between the calibration gas and the process gas, So as to maintain the fidelity of the analyzer. The method solves the problem of restoration of the dynamic process gas spectrum pattern, does not need to adjust the hardware parameters of the optical and electronic systems, and can be recovered by using the Lagrange interpolation formula or the Sinc function interpolation method without adjusting the hardware parameters of the optical and electronic systems. In the simulation experiment, the similarity of the restored spectrum and the calibration spectrum is 99.999%. The similarity of the recovery spectrum of the Lagrange interpolation recovery algorithm and the calibration spectrum is 99.9%.
【作者單位】： 中國石油大學(xué)(華東)信息與控制工程學(xué)院;華東師范大學(xué)精密光譜科學(xué)與技術(shù)國家重點實驗室;
【基金】：國家自然科學(xué)基金委國際(地區(qū))合作與交流項目(No.61105005) 華東師范大學(xué)精密光譜科學(xué)與技術(shù)國家重點實驗室開放課題項目(No.F1505037A) 中國石油大學(xué)(華東)自主創(chuàng)新項目(Nos.27R1505012A,27R1505024A);中國石油大學(xué)(華東)研究生創(chuàng)新工程項目(No.YCXJ2016076)資助~~
【分類號】：O433.51
本文編號：2447428
[Abstract]:In order to reduce the influence of the micro-slow deformation of the spectrogram on the accuracy of the TDLAS gas analyzer, a transfer recovery scheme is proposed. According to the scheme, the deformation coefficient of the process gas is obtained by comparing the factory calibration spectrum and the on-site measurement spectrum of the calibration gas, and the real-time spectrogram of the process gas can be restored to the calibration state according to the transmission property of the deformation due to the same deformation mechanism between the calibration gas and the process gas, So as to maintain the fidelity of the analyzer. The method solves the problem of restoration of the dynamic process gas spectrum pattern, does not need to adjust the hardware parameters of the optical and electronic systems, and can be recovered by using the Lagrange interpolation formula or the Sinc function interpolation method without adjusting the hardware parameters of the optical and electronic systems. In the simulation experiment, the similarity of the restored spectrum and the calibration spectrum is 99.999%. The similarity of the recovery spectrum of the Lagrange interpolation recovery algorithm and the calibration spectrum is 99.9%.
【作者單位】： 中國石油大學(xué)(華東)信息與控制工程學(xué)院;華東師范大學(xué)精密光譜科學(xué)與技術(shù)國家重點實驗室;
【基金】：國家自然科學(xué)基金委國際(地區(qū))合作與交流項目(No.61105005) 華東師范大學(xué)精密光譜科學(xué)與技術(shù)國家重點實驗室開放課題項目(No.F1505037A) 中國石油大學(xué)(華東)自主創(chuàng)新項目(Nos.27R1505012A,27R1505024A);中國石油大學(xué)(華東)研究生創(chuàng)新工程項目(No.YCXJ2016076)資助~~
【分類號】：O433.51
【相似文獻(xiàn)】
相關(guān)期刊論文 前1條
1 付占方;劉學(xué)斌;;基于現(xiàn)代譜估計技術(shù)的干涉光譜復(fù)原算法[J];光子學(xué)報;2013年09期
相關(guān)碩士學(xué)位論文 前1條
1 韓剛;干涉光譜復(fù)原算法研究[D];中國科學(xué)院研究生院(西安光學(xué)精密機械研究所);2012年
，本文編號：2447428
本文鏈接：http://sikaile.net/kejilunwen/wulilw/2447428.html
最近更新
教材專著
