Fiber optic spark plug sensor for UV-LIF measurements close to the ignition spark
Fiber optic spark plug sensor for UV-LIF measurements close to the ignition spark
复制标题
光纤火花塞传感器，用于靠近点火火花的 UV-LIF 测量
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
C. Schulz
中科院分区：
文献类型：
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作者：
R. Reichle;C. Pruss;W. Osten;H. Tiziani;F. Zimmermann;C. Schulz
点火前燃料/空气混合过程的时间分辨观测对于现代内燃机概念的发展至关重要。所提出的光纤传感器是基于有机燃料化合物的紫外激光诱导荧光而设计的，用于采集点火火花附近区域的气缸内数据。激发光和荧光光分别通过石英光纤引导。检测体积由传感头的光学设计定义。由于相关部件完全集成到改装的火花塞中，该传感器可以应用于未改装的生产线发动机。我们提出了基本的光谱概念，解决了通过火花塞和示踪剂光谱测量的最小侵入性的问题。
Time-resolved observation of the fuel/air mixing process prior to ignition is crucial for the development of modern internal combustion engine concepts. The presented fiber optic sensor is designed for the acquisition of in-cylinder data in the area close to the ignition spark, based on UV-laser-induced fluorescence of organic fuel compounds. Excitation and fluorescence light are separately guided through silica fibers. The detection volume is defined by the optical design of the sensor head. Since the related components are completely integrated into a modified spark plug, the sensor can be applied to unmodified production line engines. We present the fundamental spectroscopic concept, the solution for the minimal invasive access through the spark plug and tracer spectra measured with a prototype.