Application of a high-repetition-rate laser diagnostic system for single-cycle-resolved imaging in internal combustion engines

Johan Hult; Mattias Richter; Jenny Nygren; Marcus Aldén; Anders Hultqvist; Magnus Christensen; Bengt Johansson

doi:10.1364/AO.41.005002

Application of a high-repetition-rate laser diagnostic system for single-cycle-resolved imaging in internal combustion engines

Johan Hult, Mattias Richter, Jenny Nygren, Marcus Aldén, Anders Hultqvist, Magnus Christensen, Bengt Johansson

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

High-repetition-rate laser-induced fluorescence measurements of fuel and OH concentrations in internal combustion engines are demonstrated. Series of as many as eight fluorescence images, with a temporal resolution ranging from 10 μs to 1 ms, are acquired within one engine cycle. A multiple-laser system in combination with a multiple-CCD camera is used for cycle-resolved imaging in spark-ignition, directinjection stratified-charge, and homogeneous-charge compression-ignition engines. The recorded data reveal unique information on cycle-to-cycle variations in fuel transport and combustion. Moreover, the imaging system in combination with a scanning mirror is used to perform instantaneous threedimensional fuel-concentration measurements.

Original language	English (US)
Pages (from-to)	5002-5014
Number of pages	13
Journal	Applied Optics
Volume	41
Issue number	24
DOIs	https://doi.org/10.1364/AO.41.005002
State	Published - Aug 20 2002
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.41.005002

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abstract = "High-repetition-rate laser-induced fluorescence measurements of fuel and OH concentrations in internal combustion engines are demonstrated. Series of as many as eight fluorescence images, with a temporal resolution ranging from 10 μs to 1 ms, are acquired within one engine cycle. A multiple-laser system in combination with a multiple-CCD camera is used for cycle-resolved imaging in spark-ignition, directinjection stratified-charge, and homogeneous-charge compression-ignition engines. The recorded data reveal unique information on cycle-to-cycle variations in fuel transport and combustion. Moreover, the imaging system in combination with a scanning mirror is used to perform instantaneous threedimensional fuel-concentration measurements.",

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AU - Nygren, Jenny

AU - Aldén, Marcus

AU - Hultqvist, Anders

AU - Christensen, Magnus

AU - Johansson, Bengt

PY - 2002/8/20

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AB - High-repetition-rate laser-induced fluorescence measurements of fuel and OH concentrations in internal combustion engines are demonstrated. Series of as many as eight fluorescence images, with a temporal resolution ranging from 10 μs to 1 ms, are acquired within one engine cycle. A multiple-laser system in combination with a multiple-CCD camera is used for cycle-resolved imaging in spark-ignition, directinjection stratified-charge, and homogeneous-charge compression-ignition engines. The recorded data reveal unique information on cycle-to-cycle variations in fuel transport and combustion. Moreover, the imaging system in combination with a scanning mirror is used to perform instantaneous threedimensional fuel-concentration measurements.

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Application of a high-repetition-rate laser diagnostic system for single-cycle-resolved imaging in internal combustion engines

Abstract

ASJC Scopus subject areas

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