CAJ | 학술논문

为了提高813CO2值的FTIR检测准确度,保证不同检测系统检测数据之间的兼容性,需要对测量值进行标准气体校准.首先研究了813CO2值的标准气体校准方法,重点研究了浓度直接校准法和813CO2值经验校准法的校准过程,在此基础上对813CO2值的FTIR测量值进行了校准修正. 校准修正结果表明:校准后813CO2值的测量准确度有明显提高,浓度直接校准法和813CO2值经验校准法的准确度分别提高5.5和6.4倍. 该研究有助于提高FTIR技术的检测准确度和不同系统之间检测值的兼容性.
위료제고813CO2치적FTIR검측준학도,보증불동검측계통검측수거지간적겸용성,수요대측량치진행표준기체교준.수선연구료813CO2치적표준기체교준방법,중점연구료농도직접교준법화813CO2치경험교준법적교준과정,재차기출상대813CO2치적FTIR측량치진행료교준수정. 교준수정결과표명:교준후813CO2치적측량준학도유명현제고,농도직접교준법화813CO2치경험교준법적준학도분별제고5.5화6.4배. 해연구유조우제고FTIR기술적검측준학도화불동계통지간검측치적겸용성.
Calibration to standard reference gas scale is necessary to improve the accuracy of the measurements,and ensure the compatibility of measurement values between different instruments for 813CO2 value based on Fourier Transform Infrared (FTIR) spectroscopy. Firstly, the calibration methods were put forward, the absolute calibration and empirical calibration methods were studied in detail. On the basis of these researches, the 813CO2 values were calibrated to standard reference gas scale. The calibration results show that measurements accuracy has been improved greatly, compared with measurement results of no calibration. The accuracy for absolute calibration and empirical calibration methods are improved 5.5 and 6.4 times respectively. The study is benefit to improve the accuracy of FTIR measurements and the compatibility between different instruments.