Velocity measurement of diffuse objects by using speckle dynamics

Shinichi Komatsu, Ichirou Yamaguchi, Hiroyoshi Saito

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A new method of velocity measurement using dynamic properties of speckles produced at the gaussian image plane of a moving diffuse object is discussed theoretically and experimentally. The relation between the principles of this method and a laser Doppler velocimeter is made clear. It is shown that these two methods utilize different kinds of light intensity fluctuations and have complementary conditions for effective measurement. Experimental verification and application of the present method for the visualization of velocity distribution are also given.

Original languageEnglish
Pages (from-to)1715-1724
Number of pages10
JournalJapanese Journal of Applied Physics
Volume15
Issue number9
DOIs
Publication statusPublished - 1976
Externally publishedYes

Fingerprint

laser doppler velocimeters
Laser Doppler velocimeters
Speckle
Velocity distribution
velocity measurement
Velocity measurement
dynamic characteristics
luminous intensity
Visualization
velocity distribution

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Velocity measurement of diffuse objects by using speckle dynamics. / Komatsu, Shinichi; Yamaguchi, Ichirou; Saito, Hiroyoshi.

In: Japanese Journal of Applied Physics, Vol. 15, No. 9, 1976, p. 1715-1724.

Research output: Contribution to journalArticle

Komatsu, Shinichi ; Yamaguchi, Ichirou ; Saito, Hiroyoshi. / Velocity measurement of diffuse objects by using speckle dynamics. In: Japanese Journal of Applied Physics. 1976 ; Vol. 15, No. 9. pp. 1715-1724.
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