Accession Number : ADP008968

Title :   Laser Techniques to Measure Particle Size and Velocity in High Density Applications,

Corporate Author : METROLASER IRVINE CA

Personal Author(s) : Hess, Cecil F. ; Wood, Craig P.

Report Date : 23 JUL 1992

Pagination or Media Count : 5

Abstract : This paper presents a new technique to simultaneously measure particle size and velocity in applications characterized by a large size range and high particle concentration. The physical principle of the technique is described based on the detection of scattered refraction and reflection peaks which sweep past a detector at different times as a particle traverse a narrow probe volume. An analytical description of this phenomena is presented which relates the time separating the reflection and refraction peaks to the velocity and diameter of the particle. Lastly, the results of experimental studies using water droplets and glass microspheres are presented and discussed.(Author)

Descriptors :   *OPTICAL INTERFEROMETERS, VELOCITY, PARTICLE SIZE, LASER BEAMS, EXPERIMENTAL DESIGN.

Subject Categories : Test Facilities, Equipment and Methods
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE