Back to results
US 10,895,510 B2Granted
Core-shell nanofiber textiles for strain sensing, and methods of their manufacture
AssigneeTexavie Technologies Inc.
InventorsPeyman Servati, Frank K. Ko, Saeid Soltanian, Amir Servati
Life of this patent
Estimating the term…
Abstract
This invention pertains to a low cost, low noise strain sensor based on a web of continuous core-shell nanofibers with conductive shell and mechanically robust core that can be attached or embedded on a variety objects for directional monitoring of static or dynamic changes in mechanical deformation and pressure. This is a low cost, highly sensitive strain sensor, with low noise and ease of integration for different applications from synthetic tactile skins, to vibrational and health monitoring.
Claims21
A resistive sensor system comprising:
- at least one resistive sensor device, each resistive sensor device of the at least one resistive sensor device comprising:
- a fiber mesh comprising a plurality of elongate fibers, wherein each fiber of the plurality of fibers comprises an electrical conductor comprising an electrically conductive exterior surface reversibly positionable into and out of electrically conductive contact with the electrically conductive exterior surfaces of adjacent fibers of the plurality of fibers;
- at least one resiliently deformable encapsulating film that encapsulates the fiber mesh, whereby resilient deformation of the at least one encapsulating film moves fibers of the plurality of fibers and reversibly controls electrically conductive contact between the exterior surfaces of adjacent fibers of the plurality of fibers and changes electrical resistance of the fiber mesh;
- a first electrical contact electrically coupled to the electrical conductor of at least one of the plurality of fibers;
- and
- a second electrical contact electrically coupled to the electrical conductor of at least one of the plurality of fibers and spaced apart from first electrical contact, whereby the first and second electrical contacts are positioned to apply an electrical voltage or current across at least a portion of the fiber mesh;
- and
- a monitoring and readout system programmed to, at least, identify:
- changes in resistance between the first and second electrical contacts of each resistive sensor device of the at least one resistive sensor device;
- and
- deformation of the at least one resiliently deformable encapsulating film of each resistive sensor device of the at least one resistive sensor device by analysis of the changes in the resistance between the first and second electrical contacts of each resistive sensor device of the at least one resistive sensor device.
8 more elements
Dependencies are inferred from the claim text.