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7. Phase-Doppler technique
The aim of phase-Doppler anemometry is to measure the speed and size of individual particles in situ in a flow. In principle, this method requires no calibration.
This paragraph is divided into three sub-paragraphs:
the first is dedicated to presenting the principle of the technique;
the second takes a closer look at the effect of trajectory ambiguity, due to the finite lateral extension of laser beams;
the third describes the extensions currently being developed for this technique, which exploit the finite aspect of laser beams.
7.1 Fundamental principle of technology
The principle of phase-Doppler anemometry...
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Phase-Doppler technique
Conclusion
References
Reviews
Among the specialist journals publishing articles on light scattering, we can cite :
Applied Optics
Journal of Optical Society of America
Particle and Particle System Characterization
Congress
Many conferences are dedicated to optical measurement techniques, in particular laser velocimetry. The proceedings invariably include papers dedicated to light scattering, in particular the phase-Doppler technique. The most famous of these is probably "The International Symposium on Applications of Laser Techniques to Fluid Mechanics", held biannually in Lisbon since 1982.
A conference specifically dedicated...
Manufacturers
Many researchers build their own laser-Doppler velocimeters or phase-Doppler granulometers, for reasons of economy and/or to exercise greater control over the instrumentation, or even to adapt it to specific conditions
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