Accession Number : AD0776160

Title :   Comparison of Two Photoelectric Devices for Determining Sizes and Concentrations of Aerosol Particles,

Corporate Author : ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

Personal Author(s) : Laktionov,A. G.

Report Date : 08 NOV 1973

Pagination or Media Count : 10

Abstract : Device one collects light scattered by particles at right angles to direction of their illumination; device two collects light scattered by particles in direction near that of particle illumination. After oil droplet calibration of both devices, it was found that in the r > 0.6 micrometer region of drop radii, amplitudes of outgoing impulses from both devices are proportional to squares of sizes of particles. In the range from 20 to 0.6 micrometer the signal-to-noise ratio is 14 times greater in device two than device one.

Descriptors :   *Particle size, *Aerosols, *Light scattering, *Photodetectors, Signal to noise ratio, Calibration, Response, Translations, USSR

Subject Categories : Physical Chemistry
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE