Determination of the refractive index and size distribution of aerosol from dual-scattering-angle optical particle counter measurements

Journal Article · Thu Jun 01 00:00:00 EDT 2006 · Applied Optics

DOI:https://doi.org/10.1364/AO.45.0· OSTI ID:20779348

Huanling, Hu; Xuebin, Li; Yinchao, Zhang; Tao, Li

A method is presented for inferring both the refractive index and the size distribution of aerosol from observations of a dual-scattering-angle optical particle counter (OPC). An existing prototype of an OPC with 60 deg. and 90 deg. dual-scattering angles was used for the experiments. Based on the high sensitivity of the OPC response to the refractive index of particulates, two families of size distribution curves may be calculated. The solution of the refractive index corresponds to the superposition of the two size distributions. This method was applied to the simulation and to the field measurements conducted in Beijing and Hefei, and the results of both are presented.

• OSTI ID: 20779348
• Journal Information: Applied Optics, Vol. 45, Issue 16; Other Information: DOI: 10.1364/AO.45.003864; (c) 2006 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6935
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
36 MATERIALS SCIENCE
AEROSOLS
DISTRIBUTION
LIGHT SCATTERING
MATHEMATICAL SOLUTIONS
PARTICULATES
REFRACTIVE INDEX
SENSITIVITY
SIMULATION