Displacement direction and amplitude sensor

Details Displacement direction and amplitude sensor Displacement direction and amplitude sensor

G - Physics

08

C

340/136

G08C 21/00 (2006.01) G01D 5/26 (2006.01)

Patent

CA 2030468

A DISPLACEMENT DIRECTION AND AMPLITUDE SENSOR ABSTRACT OF THE DISCLOSURE A direction and amplitude sensor for detecting displacement comprising a mirror integral with a mobile element and a photoemitter and photoreceptor assembly integral with a reference frame. The assembly comprises a central optical fiber (1) emitting a light cone towards the mirror (10) and optical receiving fibers (2-7). The mirror is circular and its diameter and its axial distance from the extremity of the fibers are such, in centered position, that its diameter substantially corresponds to that of the light cone (11) generated by the central fiber and that the reflected light cone (12) is substantially tangent to the external radial edges of the receiving fibers. The mirror (10) is fitted on the end transversal wall (22) of a tube (21) perpendicularly to the axis of this tube and centered, the other extremity of this tube being embedded in a frame (20), the optical fibers (1-7) having their extremities inside said tube and directed towards the mirror.

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