ACCELEROMETER FOR MEASURING VIBRATIONS WITH AN OPTICAL SENSOR

摘要

The invention relates to a device (1) for detecting the acceleration of a support (2) that can move relative to a referential (3), the device (1) comprising a frame (4) to be fixed on a support (2), an overhang (cantilever) formed by a flexible element (5) that is elongated and has two opposite ends (51, 52) on which one first end (51) is connected to the frame (4) and a second end (52) is, when fixing the flexible element (5), free to move relative to a reference axis (53) extending longitudinal to the flexible element (5), the flexible element being comprises of two optical fibers (54, 55) connected by a bracing element (56) for defining a favored direction of deformation. The first fiber (54) emits light via a terminal face to a spherical mirror. The second fiber (55) collects the light only when the two fibers are located in a reference plane.