机动车尾气NDIR传感器性能仿真分析
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摘要
机动车尾气检测在防治机动车尾气污染中起到十分重要的作用,非分散红外法(NDIR)气体传感器作为测量尾气CO、CO_2的核心部件,其性能指标必须满足国家相关标准的要求。为了在设计的初始阶段实现对设计方案的优化和性能评估,本文提出了一种NDIR气体传感器的性能仿真分析方法,通过计算和分析NDIR气体传感器的响应函数来估算传感器可以达到的测量精度。将该方法应用于机动车尾气NDIR气体传感器的设计中,证明该方法具有一定应用价值。
Vehicle exhaust testing plays an important role in the prevention and control emission pollution.NDIR gas sensor,as the key component of measuring CO and CO_2 in the exhaust,has to meet the performance requirement of national standards.In order to optimize and evaluate the design proposal in the primary stage of design,this paper introduces computer a performance simulation analysis method of NDIR gas sensor,the measurement accuracy of the sensor is estimated by calculating and analyzing the response function of the sensor.The design proposal can be elevated in the primary stage of design.Using this method guided the design of NDIR sensor for vehicle exhaust and proves the application value of the method.
Vehicle exhaust testing plays an important role in the prevention and control emission pollution.NDIR gas sensor,as the key component of measuring CO and CO_2 in the exhaust,has to meet the performance requirement of national standards.In order to optimize and evaluate the design proposal in the primary stage of design,this paper introduces computer a performance simulation analysis method of NDIR gas sensor,the measurement accuracy of the sensor is estimated by calculating and analyzing the response function of the sensor.The design proposal can be elevated in the primary stage of design.Using this method guided the design of NDIR sensor for vehicle exhaust and proves the application value of the method.
引文
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[2]王铁栋,刘文清,张玉钧,等.机动车尾气遥测技术和应用研究[J].大气与环境光学学报,2007,2(3):198-202.WANG Tiedong,LIU Wenqing,ZHANG Yujun,et al.Research of on-road vehicle emissions remote sensing system[J].Journal of Atmospheric and Environmental Optics,2007,2(3):198-202.
[3]中华人民共和国国家质量技术监督局.GB18285-2005点燃式发动机汽车排气污染物排放限值及测量方法[S].北京:中国环境科学出版社,2005:1-37.General Administration of Quality Supervision,Inspection and Quarantine of P.R.C.GB18285-2005 Limits and measurement methods for exhaust pollutants from vehicles equipped ignition engine[S].Beijing:China Environmental Science press,2005:1-37.
[4]刘岗,粱庭,郇弢,等.红外甲烷传感器直射式气室设计[J].工矿自动化,2013(3):31-35.LIU Gang,LIANG Ting,HUAN Tao,et al.Design of direct gas chamber of infrared methane sensor[J].Industry and Mine Automation,2013(3):31-35.
[5]阮俊,张玉钧,高闽光,等.光学仿真在非分散红外汽车尾气监测系统中的应用[J].大气与环境光学学报,2010(6):450-456.RUAN Jun,ZHANG Yujun,GAO Minguang,et al.Application of optical simulation in non-dispersive infrared sensing of vehicle emissions[J].Journal of Atmospheric and Environmental Optics,2010(6):450-456.
[6]张广军,吕俊芳.单光束红外光二氧化碳分析仪[J].北京航空航天大学学报,1996,22(4):393-396.ZHANG Guangjun,LV Junfang.Carbon dioxide gage with a single infrared ray[J].Journal of Beijing University of Aeronautics and Astronautics,1996,22(4):393-396.
[7]李亚萍,张广军,李庆波.空间双光路红外CO_2气体传感器及其测量模型[J].光学精密工程,2009,17(1):14-19.LI Yaping,ZHANG Guangjun,LI Qingbo.Infrared CO_2 gas sensor based on space double space beams and its measurement model[J].Optics and Precision Engineering,2009,17(1):14-19.
[8]WU Y,LI D,CHENG W,et al.Non-dispersive infrared methane absorption model[C].2010 International Conference on Intelligent Control and Information Processing(ICICIP),2010:658-661.
[9]Datasheet,HSL EMIRS series IR sources for broad range gas analysis[Z].Heimann Sensors and Leister Microsystems,2004.
[10]郑晓东,汪扬春,秦文红.非序列光线追迹程序照度分布计算的随机误差分析[J].光子学报,2008,37(10):1970-1974.ZHENG Xiaodong,WANG Yangchun,QIN Wenhong.Random error analysis of illumination distribution calculated by non-sequential ray tracing programs[J].Acta Photonica Sinica,2008,37(10):1970-1974.
[11]张坤,陈海清,廖兆曙,等.红外光源辐射特性的蒙特卡洛模拟[J].激光与红外,2010,40(5):491-495.ZHANG Kun,CHEN Haiqing,LIAO Zhaoshu,et al.Monte Carlo simulation for the radiation characteristics of infrared light source[J].Laser&Infrared,2010,40(5):491-495.
[12]Hodgldnson J,Tatam R P.Optical gas sensing:a review[J].Measurement Science and Technology,2012,24(1):012004.