In-Situ Fuel Concentration Measurement Near Spark Plug by 3.392 μm Infrared Absorption Method-Application to Spark Ignition Engine
In-Situ Fuel Concentration Measurement Near Spark Plug by 3.392 μm Infrared Absorption Method-Application to Spark Ignition Engine
复制标题
3.392μm红外吸收法现场测量火花塞附近燃油浓度——在火花点火发动机中的应用
DOI：
10.4271/2003-01-1109
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
E. Tomita
中科院分区：
文献类型：
--
作者：
A. Nishiyama;N. Kawahara;E. Tomita
This study measured the fuel concentration near a spark plug using a laser infrared absorption method. An IR spark plug sensor with a double-pass measurement length was developed. A He-Ne laser with a wavelength of 3.392 μm, which coincides with the absorption line of hydrocarbons, was used as the light source. In order to confirm the measurement accuracy, the concentrations of a methane-air mixture were measured in a compression-expansion engine. Then, the IR spark plug sensor was used for measurements in a 4-stroke spark-ignition engine fuelled with isooctane. The air/fuel ratio measured using this system clearly agreed with the mean air/fuel ratio.
