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Applied Optics

Applied Optics


  • Vol. 17, Iss. 4 — Feb. 15, 1978
  • pp: 667–670

Laser Doppler particle measuring system using nonsinusoidal forced vibration and bispectral analysis

Takuso Sato, Tadao Kishimoto, and Kimio Sasaki  »View Author Affiliations

Applied Optics, Vol. 17, Issue 4, pp. 667-670 (1978)

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A new laser Doppler particle measuring method which resists additive Gaussian noises is proposed. Particles are forced-vibrated by nonsinusoidal waves with fixed bispectral characteristics, and the responses are measured by using a velocity measuring system which consists of the optics of a laser Doppler velocimeter, FM discriminator, and a bispectral analyzer. Application of bispectral analysis is very effective in eliminating additive Gaussian noise even when the power of noise is fairly large. The principle, practical construction, and some experimental results are shown. The results show clearly the effectiveness of the method.

© 1978 Optical Society of America

Original Manuscript: May 7, 1977
Published: February 15, 1978

Takuso Sato, Tadao Kishimoto, and Kimio Sasaki, "Laser Doppler particle measuring system using nonsinusoidal forced vibration and bispectral analysis," Appl. Opt. 17, 667-670 (1978)

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  1. F. Durst, A. Melling, J. H. Whitelaw, Principles and Practice of Laser Doppler Anemometry (Academic, New York, 1976).
  2. B. M. Watrasiewicz, M. J. Rudd, Laser Doppler Measurements (Butterworths, London, 1976).
  3. M. K. Mazumder, K. J. Kirsch, Appl. Opt. 14, 894 (1975). [CrossRef] [PubMed]
  4. K. J. Kirsch, M. K. Mazumder, Appl. Phys. Lett. 26, 193 (1975). [CrossRef]
  5. T. Sato, Y. Nakatani, M. Ueda, Appl. Opt. 16, 1263 (1977). [CrossRef] [PubMed]
  6. S. S. Cramer, Mathematical Statistics (Wiley, New York, 1962).
  7. D. R. Brillinger, Time Series Data Analysis and Theory (Holt, Rinehart, and Winston, New York, 1975).

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