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<p>In the work, requirements on modern circuits for the problems of diagnostics of multiphase flows have been formulated on the basis of a survey of LDAs with direct spectral analysis. Ways of implementing them have been proposed with account taken of the status of laser technology and spectroscopy. An advanced prototype of an anemometer based on the latest elemental base with the mass-produced spectrum analyzer WS-7 of the High Precision Wavelength Meters: WS_HighFinesse Angstrom Series on the basis of a Fizeau interferometer has been presented. The effectiveness of the circuit has been demonstrated with the example of diagnostics of supersonic gas–liquid jets with a high content of the spray, and also the possibility of using it for many-sided diagnostics of multiphase flows has been shown.</p>

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Development and Use of Laser Doppler Anemometers with Direct Spectral Analysis at the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • V. M. Boiko,
  • S. V. Poplavski

摘要

In the work, requirements on modern circuits for the problems of diagnostics of multiphase flows have been formulated on the basis of a survey of LDAs with direct spectral analysis. Ways of implementing them have been proposed with account taken of the status of laser technology and spectroscopy. An advanced prototype of an anemometer based on the latest elemental base with the mass-produced spectrum analyzer WS-7 of the High Precision Wavelength Meters: WS_HighFinesse Angstrom Series on the basis of a Fizeau interferometer has been presented. The effectiveness of the circuit has been demonstrated with the example of diagnostics of supersonic gas–liquid jets with a high content of the spray, and also the possibility of using it for many-sided diagnostics of multiphase flows has been shown.