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US 10,704,965 B2Granted
High resolution pressure sensing
AssigneeTechnion Research & Development Foundation Limited
InventorsHossam Haick, Meital Segev-Bar, Gady Konvalina
Life of this patent
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Abstract
A pressure sensing device that may include a first and second sensing elements that include one or more piezoresistive materials. The first sensing element has a first gradient. The second sensing element has a second gradient. The second gradient differs from the first gradient. The first and second gradients facilitate a determination of a magnitude of and/or a location of pressure applied on the first and second sensing element.
Claims19
A pressure sensing device, comprising:
- a first and second sensing elements that comprise one or more piezoresistive materials;
- wherein the first sensing element has a first gradient;
- wherein the first sensing element comprises multiple first regions;
- wherein at an absence of a pressure applied on the first sensing element there is a one to one mapping between a given property of each first region and a location of the first region, wherein the given property is selected out of resistance and sensitivity;
- wherein the second sensing element has a second gradient;
- wherein the second gradient differs from the first gradient;
- wherein a sensing circuit that is coupled to the first and second sensing elements, is arranged to sense at least one out of resistance or conductance of the first and second sensing elements and to determine at least one out of a location or a magnitude of a pressure applied on the first and second sensing elements.
4 more elements
Dependencies are inferred from the claim text.