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Fast Response NDIR for Real-Time Exhaust Measurement
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English
Abstract
The objective of the work was to develop a fast response infrared analyzer that makes possible the cyclic measurement of exhaust gas concentrations from internal combustion engines.
The new analyzer achieves T90 response time of less than 30 milliseconds and is capable of measuring CO, CO2 and HC (Hydrocarbons) simultaneously.
Another feature of the analyzer is its' capability to measure simultaneously from multiple sample points, i.e., one optical bench with a maximum of four sample cells can measure CO, CO2 and HC simultaneously from four different sources.
Results from a multiple cylinder engine show that this analyzer can be an effective tool for analysis and diagnosis of internal combustion engine exhaust products.
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Authors
Citation
Miyatake, K., Ishida, K., Kohsaka, H., and Harvey, N., "Fast Response NDIR for Real-Time Exhaust Measurement," SAE Technical Paper 900501, 1990, https://doi.org/10.4271/900501.Also In
References
- Tabaczynski, R. J. et al. “Time Resolved Measurements of Hydrocarbon Mass Flow-rate in the Exhaust of a Spark-Ignition Engine” SAE 720112
- Seko, T. et al. “Combustion Exhaust Emissions of the Spark-Assisted Methanol Diesel Engine” SAE 861165
- Butler, J. W. et. al. “Fast-Response Zirconia Sensor-Based Instrument of the Air/Fuel Ratio of Combustion Exhaust” SAE 840061
- Collings, N. Willey, J. “Cyclically Resolved HC Emissions from a Spark Ignition Engine.” SAE 871961
- Collings, N. et. al. “An Improved Tequnique for Measuring Cyclic Variations int he Hydrocarbon Concentration in an Engine Exhaust” SAE 880316