| 摘要 |
The invention relates to a device for measuring the traveling speed of a fluid relative to an object. Said device is characterized in that it includes at least one sensor (2), placed in a suitable area of the object. Said at least one sensor (2) is capable of determining and using, by interacting with at least one computer (3), a local aerodynamic or hydrodynamic instability resulting from the relative movement of said fluid in relation to an element (1) of said object and dependent on the traveling speed of the fluid. The device is characterized in that said element (1) is an obstacle or hollow cavity having a single opening arranged in a body (40) and open toward the outside of said body. Said body is located on the object for which the relative speed of the fluid is sought such that the fluid grazes said cavity (1). The device is also characterized in that said at least one aerodynamic/hydrodynamic instability sensor (2) uses the process of self-oscillating said fluid within the cavity (1) to determine the relative movement speed thereof. |
