Temperature and multi-species measurements by supercontinuum absorption spectroscopy for IC engine applications

Engelbrecht R, Will S, Werblinski T, Engel S, Zigan L (2013)

Publication Language: English

Publication Type: Journal article

Publication year: 2013

Journal

Publisher: Optical Society of America

Book Volume: 21

Pages Range: 13656-13667

Journal Issue: 11

DOI: 10.1364/OE.21.013656

Abstract

The first supercontinuum (SC) absorption spectroscopy measurements showing the feasibility of quantitative temperature evaluation are presented to the best of the authors' knowledge. Temperature and multi-species measurements were carried out at a detection rate of 2MHz in a high-temperature flow cell within a temperature range from 450K to 750K at 0.22MPa, representing conditions during the suction and compression stroke in an internal combustion (IC) engine. The broadband SC pulses were temporally dispersed into fast wavelength sweeps, covering the overtone absorption bands 2v1, 2v3, v 1 + v3 of H2O and 3v3 of CO 2 in the near-infrared region from 1330 nm to 1500 nm. The temperature information is inferred from the peak ratio of a temperature sensitive (1362.42 nm) and insensitive (1418.91 nm) absorption feature in the v1 + v3 overtone bands of water. The experimental results are in very good agreement with theoretical intensity ratios calculated from absorption spectra based on HiTran data. © 2013 Optical Society of America.

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APA:

Engelbrecht, R., Will, S., Werblinski, T., Engel, S., & Zigan, L. (2013). Temperature and multi-species measurements by supercontinuum absorption spectroscopy for IC engine applications. Optics Express, 21(11), 13656-13667. https://doi.org/10.1364/OE.21.013656

MLA:

Engelbrecht, Rainer, et al. "Temperature and multi-species measurements by supercontinuum absorption spectroscopy for IC engine applications." Optics Express 21.11 (2013): 13656-13667.

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