13 June 2005 Fiber optic spark plug sensor for UV-LIF measurements close to the ignition spark
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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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Reichle, R. Reichle, C. Pruss, C. Pruss, W. Osten, W. Osten, H. J. Tiziani, H. J. Tiziani, F. Zimmermann, F. Zimmermann, C. Schulz, C. Schulz, "Fiber optic spark plug sensor for UV-LIF measurements close to the ignition spark", Proc. SPIE 5856, Optical Measurement Systems for Industrial Inspection IV, (13 June 2005); doi: 10.1117/12.612644; https://doi.org/10.1117/12.612644

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