9 January 2002 Analysis of an in-situ fiber optic backscatter probe
Author Affiliations +
Elastic Light Scattering is a powerful technique to probe the optical properties of particulate systems. In particular, multi-spectral extinction and multi-angular scattering based on Fraunhofer diffraction have been used with varying degrees of success to probe particulate polydispersions. However, multi-angle scattering methods require complex detector geometries while extinction methods suffer from errors due to forward scattering. In this paper, we examine the use of an in-situ multimode fiber optic backscatter probe to collect multi-spectral backscatter data supplemented by multi-spectral extinction data. To perform particle sizing, efficiency kernels must be constructed that determines the absolute backscatter signal as a function of the particle size parameter (q) for unit concentration. These efficiency kernels can then be used to invert calibrated multi-spectral data. Within this scheme, the extinction measurements act as an empirical correction factor to the backscatter measurement kernels.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Barry Gross, Barry Gross, Fred Moshary, Fred Moshary, Yiping Zhang, Yiping Zhang, Samir A. Ahmed, Samir A. Ahmed, } "Analysis of an in-situ fiber optic backscatter probe", Proc. SPIE 4484, Lidar Remote Sensing for Industry and Environment Monitoring II, (9 January 2002); doi: 10.1117/12.452792; https://doi.org/10.1117/12.452792


Back to Top