Laser-induced graphene-based bending sensor and method
AssigneeKing Abdullah University of Science and Technology
InventorsJürgen KOSEL, Marco MARENGO, Giovanni MARINARO
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Abstract
A bending sensor includes a flexible substrate made of polyimide; a laser-induced graphene electrode formed into a top surface of the flexible substrate; and first and second pads formed as a laser-induced graphene into the top surface of the flexible substrate, wherein the first and second pads are in electrical contact with the laser-induced graphene electrode. A bending of the flexible substrate and the laser-induced graphene electrode changes a resistivity of the laser-induced graphene electrode, which is indicative of an amount of bending.
Claims20
A bending sensor comprising:
- a flexible substrate made of polyimide;
- a laser-induced graphene electrode formed into a top surface of the flexible substrate;
- and
- first and second pads formed as a laser-induced graphene into the top surface of the flexible substrate, wherein the first and second pads are in electrical contact with the laser-induced graphene electrode,
- wherein a bending of the flexible substrate and the laser-induced graphene electrode changes a resistivity of the laser-induced graphene electrode, which is indicative of an amount of bending.
A hand-held bending measuring instrument comprising:
- a body;
- a bending sensor attached to the body;
- and
- a measuring device that translates measurements of the bending sensor into a given parameter,
- wherein the bending sensor includes,
- a flexible substrate made of polyimide;
- and
- a laser-induced graphene electrode formed into a top surface of the flexible substrate,
- wherein a bending of the flexible substrate and the laser-induced graphene electrode changes a resistivity of the laser-induced graphene electrode, which is indicative of an amount of bending.
A method for forming a bending sensor, the method comprising:
- providing a flexible substrate made of polyimide;
- providing a laser device at a given distance from the flexible substrate;
- and
- carbonizing with the laser a portion of the flexible substrate to form a laser-induced graphene electrode on a top surface of the flexible substrate.
Dependencies are inferred from the claim text.