Method for manufacturing a strain gauge device, a strain gauge device, and the use of the device
AssigneeTactotek Oy
InventorsAntti Keränen, Mikko Heikkinen, Vinski Bräysy
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Abstract
A method for manufacturing a strain gauge device and a strain gauge device are presented. The method includes obtaining a first substrate, preferably a first formable substrate film for accommodating electronic components, printing by a printed electronics method, such as by screen printing or inkjet printing, a strain gauge on the first substrate, and molding, preferably by utilizing injection molding, a molded material layer embedding the strain gauge. The strain gauge device may comprise two, preferably formable, substrate films between which the strain gauge and the molded material layer may be arranged.
Claims47
A method for manufacturing a strain gauge device, the method comprising:
- obtaining a first substrate including a first formable substrate film for accommodating electronic components,
- printing by a printed electronics method a strain gauge on the first substrate, and
- injection molding a molded material layer over the strain gauge, thereby embedding the strain gauge in the molded material layer.
A strain gauge device comprising:
- a printed strain gauge on a first formable substrate film, the strain gauge being embedded in an injection molded material layer, wherein the first formable substrate film includes at least one of the following:
- plastics, polymer, polycarbonate, polycarbonate-acrylonitrile butadiene styrene, poly(methyl methacrylate), polyimide, copolymer of methyl methacrylate and styrene monomer (MS resin), polyethylene terephthalate, wood, leather, or fabric.
A strain gauge device comprising:
- at least three printed strain gauges on a formable substrate film, the at least three strain gauges being embedded in an injection molded material layer, wherein the device is configured for positioning a pressure applied to the formable substrate film based on the at least three printed strain gauges by triangulation.
A strain gauge device comprising:
- a printed strain gauge on a first formable substrate film, wherein the strain gauge is embedded in an injection molded material layer;
- and
- a second formable substrate film, wherein the molded material layer embedding the strain gauge is arranged between the first formable substrate film and the second formable substrate film.
A strain gauge device comprising:
- a printed strain gauge on a formable substrate film, wherein the strain gauge is embedded in an injection molded material layer;
- and
- a controlling unit on the formable substrate film and arranged in electrical connection with the strain gauge.
A strain gauge device comprising:
- a printed strain gauge on a formable substrate film, the strain gauge being embedded in an injection molded material layer, wherein the formable substrate film has been formed to a three-dimensional shape.
A strain gauge device comprising:
- a printed first strain gauge on a first formable substrate film, wherein the first strain gauge is embedded in an injection molded material layer;
- and
- at least one second strain gauge printed on a second formable substrate film at least partly at a corresponding position with respect to the first strain gauge.
A strain gauge device comprising:
- a printed strain gauge on a formable substrate film, wherein the strain gauge is embedded in an injection molded material layer;
- and
- a capacitive sensing device associated with the formable substrate film.
A strain gauge device comprising:
- a printed strain gauge on a formable substrate film, the strain gauge being embedded in an injection molded material layer, wherein the formable substrate film includes metal having a resistivity higher than or equal to 0.1 micro-ohm/m;
- and
- an insulating layer on the formable substrate film, wherein the strain gauge is on the insulating layer.
Dependencies are inferred from the claim text.