Control device for non-positive connections
AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorsHolger Lüthje, Saskia Biehl, Ralf Bandorf
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Abstract
The invention relates to a control device for non-positive connections, especially screw connections. The device includes two force application elements and a measuring element arranged therebetween. The measuring element is at least partially provided with a layer having a force sensory effect. The surface of the layer is provided with elevations for receiving a force applied by the force application elements.
Claims16
A control device for non-positive connections, in particular screw connections, wherein the device possesses force-application elements and at least one measuring element, wherein the measuring element is provided at least in some areas with a layer exhibiting a force sensory effect, characterized in that the force sensory layer changes its electrical resistance due to changes of an applied force and the surface of the layer has as support profiles flat prominences constructed for recording a force applied by the force application elements characterized in that the force sensory layer comprises diamond-like carbon-based layers including at least one of an amorphous and nanocrystalline structure.
Dependencies are inferred from the claim text.