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公开(公告)号：US08155890B2
公开(公告)日：2012-04-10
申请号：US12083521
申请日：2006-12-15
申请人： Katsutoshi Goto , Masahiro Yamakage , Tomoyasu Iwase , Tokio Okano , Yoshihiro Deguchi , Masanobu Mizoguchi , Atushi Takita , Norihiro Fukuda
发明人： Katsutoshi Goto , Masahiro Yamakage , Tomoyasu Iwase , Tokio Okano , Yoshihiro Deguchi , Masanobu Mizoguchi , Atushi Takita , Norihiro Fukuda
CPC分类号： G01N21/3504 , G01N21/031 , G01N21/314
摘要： An exhaust gas analysis method comprises applying a laser beam to the exhaust gas discharged from an internal combustion engine, receiving the laser beam that has passed through the exhaust gas, and measuring the concentration of any of the components contained in the exhaust gas based on the received laser beam. The exhaust gas analysis method further comprises detecting the absorption spectrum of the laser beam absorbed in the exhaust gas by using the received laser beam, calculating the concentration of the specific gas component by using the absorption spectrum, calculating the temperature of the exhaust gas by using the absorption spectrum, calculating the pressure of the exhaust gas by using the absorption spectrum, correcting the calculated concentration of the component contained in the exhaust gas by using the calculated temperature, correcting the concentration by using the calculated pressure, and outputting the true concentration value.
摘要翻译： 排气分析方法包括对从内燃机排出的排气施加激光，接收通过废气的激光束，并且基于该废气测定废气中含有的任何成分的浓度 接收激光束。 废气分析方法还包括通过使用接收的激光束来检测吸收在废气中的激光束的吸收光谱，通过使用吸收光谱计算特定气体成分的浓度，通过使用废气计算废气的温度 吸收光谱，使用吸收光谱计算废气的压力，通过使用计算出的温度校正计算出的废气中成分的成分的浓度，使用计算出的压力校正浓度，并输出真实浓度值 。
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公开(公告)号：US20090164138A1
公开(公告)日：2009-06-25
申请号：US12083521
申请日：2006-12-15
申请人： Katsutoshi Goto , Masahiro Yamakage , Tomoyasu Iwase , Tokio Okano , Yoshihiro Deguchi , Masanobu Mizoguchi , Atushi Takita , Norihiro Fukuda
发明人： Katsutoshi Goto , Masahiro Yamakage , Tomoyasu Iwase , Tokio Okano , Yoshihiro Deguchi , Masanobu Mizoguchi , Atushi Takita , Norihiro Fukuda
CPC分类号： G01N21/3504 , G01N21/031 , G01N21/314
摘要： An exhaust gas analysis method comprises applying a laser beam to the exhaust gas discharged from an internal combustion engine, receiving the laser beam that has passed through the exhaust gas, and measuring the concentration of any of the components contained in the exhaust gas based on the received laser beam. The exhaust gas analysis method further comprises detecting the absorption spectrum of the laser beam absorbed in the exhaust gas by using the received laser beam (S1), calculating the concentration of the specific gas component by using the absorption spectrum (S2), calculating the temperature of the exhaust gas by using the absorption spectrum (S3), calculating the pressure of the exhaust gas by using the absorption spectrum (S4 to S6), correcting the calculated concentration of the component contained in the exhaust gas by using the calculated temperature (S7), correcting the concentration by using the calculated pressure (S8), and outputting the true concentration value (S9). Accordingly, the exhaust gas analysis method is substantially insensitive to variation in pressure and temperature of the exhaust gas and capable of calculating and analyzing the concentration of any of the components contained in the exhaust gas in an accurate, realtime manner.
摘要翻译： 排气分析方法包括对从内燃机排出的排气施加激光，接收通过废气的激光束，并且基于该废气测定废气中含有的任何成分的浓度 接收激光束。 废气分析方法还包括通过使用接收的激光束（S1）检测吸收在废气中的激光束的吸收光谱，通过使用吸收光谱（S2）计算特定气体成分的浓度，计算温度 通过使用吸收光谱（S3）来计算排气的压力，通过使用吸收光谱（S4〜S6）计算废气的压力，通过使用计算出的温度来校正计算出的废气中成分的成分浓度（S7 ），通过使用计算出的压力来校正浓度（S8），并输出真浓度值（S9）。 因此，排气分析方法对废气的压力和温度的变化基本上不敏感，并且能够以准确的实时方式计算和分析废气中包含的任何组分的浓度。
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