| 摘要 |
The invention relates to a laser velocimetric probe including means (1-6) for generating interference fringes and measurement means (8-10) for determining the speed of a particle passing through the field of fringes on the basis of a signal representing the light backscattered by this particle. It comprises means (4) for generating at least two systems of fringes, and the measurement means are arranged to determine at least two components of the speed of the particle by frequency-based analysis of the said signal. <IMAGE> |
