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US 12,578,242 B2Granted
Sensor arrangement for sensing forces and methods for fabricating a sensor arrangement and parts thereof
AssigneeMax-Planck-Gesellschaft Zur FöRderung Der Wissenschaften E. V.
InventorsHuanbo Sun, Georg Martius, Katherine J. Kuchenbecker
Life of this patent
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Abstract
The disclosure relates to a sensor arrangement for sensing forces, including a measurement surface and optical detection of reflected light. The disclosure relates further to corresponding fabrication methods.
Claims21
Sensor arrangement for sensing forces, comprising
- a base portion,
- a top portion comprising an elastically deformable wall, the top portion being mounted on the base portion such that the top portion and the base portion define an interior space, the elastically deformable wall comprising an outside measurement surface and an inside reflective surface being separated by the wall from the outside measurement surface, wherein the inside reflective surface partially delimits the interior space,
- a light source arrangement comprising a plurality of light sources being mounted on the base portion and arranged to emit light towards the inside reflective surface, and
- a two-dimensional image sensor comprising a detection surface viewing at least a part of the inside reflective surface.
1 more element
Method for fabricating a top portion for a sensor arrangement, the method comprising the following steps:
- providing a skeleton made of a skeleton material, the skeleton surrounding an interior space, and
- covering the skeleton with a wall material such that the wall material forms an elastically deformable wall defining an outside measurement surface and an inside reflective surface being separated by the wall from the outside measurement surface, wherein the inside reflective surface delimits the interior space, and wherein the skeleton is positioned between the inside reflective surface and the outside measurement surface.
Method for fabricating a sensor arrangement, the method comprising the following steps:
- providing a base portion,
- fabricating a top portion having an interior space,
- mounting a light source arrangement comprising a plurality of light sources on the base portion,
- mounting a two-dimensional image sensor on the base portion, and
- covering the base portion with the top portion such that the plurality of light sources are arranged to emit light towards the interior space and that the image sensor is positioned in the interior space;
- wherein the top portion is fabricated according to the following steps:
- providing a skeleton made of a skeleton material, the skeleton surrounding the interior space, and
- covering the skeleton with a wall material such that the wall material forms an elastically deformable wall defining an outside measurement surface and an inside reflective surface being separated by the wall from the outside measurement surface, wherein the inside reflective surface delimits the interior space.
5 more elements
Dependencies are inferred from the claim text.