Thermometry in pressurized, sooting flames using laser-induced gratings

Michael S. Brown; William L. Roberts

doi:10.1117/12.279755

Thermometry in pressurized, sooting flames using laser-induced gratings

Michael S. Brown, William L. Roberts

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

We have performed non-intrusive thermometry in rich ethylene/air flames using a frequency measurement based on laser-induced gratings. Light from a cw probe beam is coherently scattered from a thermal or electrostrictive grating induced by the pulsed pump beams. The Doppler modulation of the signal beam is determined by the local speed of sound from which a temperature can be extracted. Soot particles, acting as blackbody absorbers do contribute to the signal.

Original language	English (US)
Pages (from-to)	494
Number of pages	1
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3172
DOIs	https://doi.org/10.1117/12.279755
State	Published - 1997
Externally published	Yes
Event	Optical Technology in Fluid, Thermal, and Combustion Flow III - San Diego, CA, United States Duration: Jul 28 1997 → Jul 28 1997

Keywords

Soot
Thermometry
Transient gratings
electrostriction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.279755

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abstract = "We have performed non-intrusive thermometry in rich ethylene/air flames using a frequency measurement based on laser-induced gratings. Light from a cw probe beam is coherently scattered from a thermal or electrostrictive grating induced by the pulsed pump beams. The Doppler modulation of the signal beam is determined by the local speed of sound from which a temperature can be extracted. Soot particles, acting as blackbody absorbers do contribute to the signal.",

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AU - Brown, Michael S.

AU - Roberts, William L.

PY - 1997

Y1 - 1997

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AB - We have performed non-intrusive thermometry in rich ethylene/air flames using a frequency measurement based on laser-induced gratings. Light from a cw probe beam is coherently scattered from a thermal or electrostrictive grating induced by the pulsed pump beams. The Doppler modulation of the signal beam is determined by the local speed of sound from which a temperature can be extracted. Soot particles, acting as blackbody absorbers do contribute to the signal.

KW - Soot

KW - Thermometry

KW - Transient gratings

KW - electrostriction

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DO - 10.1117/12.279755

M3 - Conference article

AN - SCOPUS:57649098629

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Optical Technology in Fluid, Thermal, and Combustion Flow III

Y2 - 28 July 1997 through 28 July 1997

ER -

Thermometry in pressurized, sooting flames using laser-induced gratings

Abstract

Keywords

ASJC Scopus subject areas

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