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Wavelength-Agile Laser Sensors for Measuring Gas Properties in Engines
Technical Paper
2003-01-1116
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Internal combustion engines present a harsh environment for optical sensors, owing to challenges such as high pressures, multiple phases, and window fouling. Fortunately, a new class of “wavelength-agile” light sources that rapidly scan through a broad wavelength range facilitates accurate absorption spectroscopy in engines. Gas temperature and species concentrations can be monitored with fast time response (down to ∼ 1 μs). Here, two strategies for generating wavelength-agile light are introduced. We present in-cylinder results obtained by applying one of the strategies to monitor gas temperature and H2O concentration during compression in a single-cylinder optical engine operating in HCCI mode. Such data will be useful for improving the understanding of engine phenomena and offer the potential for active engine control.
Authors
- Laura A. Kranendonk - Engine Research Center, University of Wisconsin - Madison
- Andrew W. Caswell - Engine Research Center, University of Wisconsin - Madison
- Adam M. Myers - Engine Research Center, University of Wisconsin - Madison
- Scott T. Sanders - Engine Research Center, University of Wisconsin - Madison
Topic
Citation
Kranendonk, L., Caswell, A., Myers, A., and Sanders, S., "Wavelength-Agile Laser Sensors for Measuring Gas Properties in Engines," SAE Technical Paper 2003-01-1116, 2003, https://doi.org/10.4271/2003-01-1116.Also In
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