| 摘要 |
<p>The invention relates to an optical system for determining, in three dimensions, the velocity profile and minimum concentration of particles in a flow, the system being characterised in that it comprises a first acquisition chain (100) comprising a first acquisition lens (130), a first photosensitive sensor (110), and a first shutter (120) formed by an opaque disk having at least two openings (121) in an arc, which can allow the transmission of light beams towards said first photosensitive sensor (110), said openings (121) being inscribed in the same circle.</p> |
