Abstract: The invention relates to a self-driving and self-locking hinge strap for mounting between two adjacent elements (A1, A2), the strap being of the type constituted by at least one resilient strip (3) preformed to have a section that is curved and designed to be secured via its two ends to the two elements, and to occupy a folded position and a deployed position. According to the invention, each resilient strip (3) is provided with a layer of viscoelastic material (4) interposed between one of the faces of the resilient strip (3) and a stress plate (5) in such a manner as to provide a hinge that also performs a damping function.

Abstract: The invention relates to a self-driving and self-locking hinge strap for mounting between two adjacent elements (A1, A2), the strap being of the type constituted by at least one resilient strip (3) preformed to have a section that is curved and designed to be secured via its two ends to the two elements, and to occupy a folded position and a deployed position. According to the invention, each resilient strip (3) is provided with a layer of viscoelastic material (4) interposed between one of the faces of the resilient strip (3) and a stress plate (5) in such a manner as to provide a hinge that also performs a damping function.

Abstract: A method of remotely determining the three-dimensional velocity of a fluid such as air or water, the method consisting in emitting signals of determined frequencies in at least three different directions by means of a plane array of transducers, and in using said transducers to pick up acoustic signals backscattered by the fluid, the method consisting in emitting trains of signals at different determined frequencies f1, f2, and f3, firstly in a determined direction D1, then in a determined direction D2, and finally in a determined direction D3, and subsequently in picking up all of the signals backscattered by the fluid. The invention makes it possible to improve the accuracy and to increase the maximum range of measurements.