Simultaneous Measurement of Velocity and Equivalent Diameter on Non‐Spherical Particles

Hiroshi Morikita, Koichi Hishida, Masanobu Maeda

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The performance of a laser‐based optical technique to measure simultaneously the velocity and equivalent diameter of nonsphercial particles was evaluated. The size information was provided by the absolute intensity of diffractively scattered light by a particle crossing a single laser beam, which is concentric with a laser Doppler probe volume. The response curve (size‐intensity relationship) of the technique was estimated by calculations using the Fraunhofer approximation. Experiments with spherical glass and polyethylene and non‐spherical metal and ceramic particles ranging from 20 to 200 μm confirmed the operation of the technique and in all the measurements the maximum error of the average diameter was 10 μm as compared with size information provided by a microscope.

Original languageEnglish
Pages (from-to)227-234
Number of pages8
JournalParticle & Particle Systems Characterization
Issue number3
Publication statusPublished - 1994 Jun

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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