Actuator with load cell
AssigneeSagem Defense Securite
InventorJérôme Piaton
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Abstract
The actuator is of the roto-linear type and comprises a sleeve, a clevis and an operating rod which transmits the load. An electromagnetic sensor that measures and controls the load is placed inside the actuator, at the shoulder of the clevis. This sensor is associated with measurement means for processing the signals from the said winding, which winding are torus-shaped and arranged inside a field frame which is magnetically closed by an armature.
Claims9
A roto-linear actuator of the type comprising a sleeve and a clevis at one of the ends of said sleeve, said sleeve receiving the loads transmitted and/or received by the operating rod, wherein it comprises a sensor for measuring and controlling the micro-displacements which appear between two concentric regions of different diameters, one of which corresponds to said sleeve and the other to the inner extension of the anchoring lug of said clevis, said regions being connected by an axially deformable annular region which forms the shoulder of said clevis, said sensor comprising windings arranged in a field frame integrally attached to one of said concentric regions and a radially extending armature integrally attached to the other concentric region, said sensor additionally comprising measurement means for processing the signals issuing from said windings, said windings being torus-shaped in said field frame which is magnetically closed by said armature.
Dependencies are inferred from the claim text.