Response Calculations for a Commerical Light-Scattering Aerosol Counter.
Abstract
To adequately assess the effect of atmospheric aerosols on electro- optical and high energy laser systems, particulate size distributions must be measured. Single particle light scattering aerosol particle counters offer some advantages for these measurements. This report presents response calculations for a commerically available light-scattering aerosol particle counter (the Particle Measurement Systems Classical Scattering Aerosol Spectrometer) used by the DoD community for such measurements. The calculations are for spherical particles and consider the wavelength of the laser source and the geometry of the light-collecting optics. The results show a strong dependence of the response upon the particle refractive index and multivalued response for particles with diameter greater than 0.8 micrometer. The problem of deconvolution of size distribution information from measurements taken with this instrument is addressed. Several examples of size distribution measurements of atmospheric fog and haze are given to illustrate the significance of the results. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1976
- Accession Number
- ADA040841
Entities
People
- E. B. Stenmark
- R. G. Pinnick
Organizations
- United States Army Communications-Electronics Command