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
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