Abstract
对天然气分布监测，高精度地检测CO2同位素是非常重要的。采用可调谐二极管激光吸收光谱(TDLAS)技术，通过13CO2/12CO2在4.3 μm处的吸收谱线，实现高精度CO2同位素检测。该检测系统由工作在连续波模式下的中红外间带级联激光器(ICL)、长光程多通池(MPGC)和中红外碲镉汞(MCT)探测器组成。针对13CO2和12CO2两条吸收谱线强度受温度影响的问题，研制了MPGC高精度温度控制系统。实验中，配置5种不同浓度的CO2气体对检测系统进行标定，响应线性度可达0.999 6。结果表明，当积分时间为92 s时，同位素检测精度低至0.013 9‰，具备实际应用价值。
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
