An automated light scattering system and a method for theinsitumeasurement of the index of refraction of soot particles
作者:
T. T. Charalampopoulos,
期刊:
Review of Scientific Instruments
(AIP Available online 1987)
卷期:
Volume 58,
issue 9
页码: 1638-1646
ISSN:0034-6748
年代: 1987
DOI:10.1063/1.1139361
出版商: AIP
数据来源: AIP
摘要:
An automated laser light scattering system which uses a single detector to measure both classical and dynamic light scattering from soot particles in flames was designed, fabricated, and tested. Measurements of classical and dynamic light scattering along with extinction for a premixed methane/oxygen flame are presented, as a function of position in the flame. It is demonstrated that by introducing a theoretical relationship between the real and imaginary parts of the complex index of refraction, the optical properties of Rayleigh size soot particles can be directly inferred from suchinsitumeasurements. The sensitivity of the inferred quantities to the measured parameters is assessed. Soot particles sizes, number densities and optical properties were simultaneously inferred. The potential for determining theinsiturefractive indices of soot has been demonstrated.
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