Stretchable two-dimensional pressure sensor
First Claim
Patent Images
1. A pressure sensor for measuring the location and intensity of an applied pressure, comprising:
- an elastomeric sheet; and
a plurality of micro-channels embedded in said elastomeric sheet;
wherein said micro-channels are filled with an electrically conductive material.
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Abstract
A pressure sensor for measuring the location and intensity of an applied pressure, including an elastomeric sheet; and a plurality of micro-channels embedded in the elastomeric sheet.
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Citations
14 Claims
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1. A pressure sensor for measuring the location and intensity of an applied pressure, comprising:
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an elastomeric sheet; and a plurality of micro-channels embedded in said elastomeric sheet; wherein said micro-channels are filled with an electrically conductive material. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of fabricating a pressure sensor comprising:
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forming an elastomeric sheet having a plurality of micro-channels embedded therein; and filling said micro-channels with a conductive material. - View Dependent Claims (8, 9, 10)
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11. A method of determining a location of pressure applied to a pressure sensor, comprising:
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measuring at a first time the electric resistance of a conductive fluid filling each of a plurality of channels embedded in said pressure sensor; measuring at a second time the electric resistance of said conductive fluid filling each of said plurality of channels embedded in said pressure sensor; identifying the channels having the greatest change in electric resistance.
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12. A method of determining an intensity of pressure applied to a pressure sensor, comprising:
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measuring at a first time the electric resistance of a conductive fluid filling each of a plurality of channels embedded in said pressure sensor; measuring at a second time the electric resistance of said conductive fluid filling each of said plurality of channels embedded in said pressure sensor; determining a relative change in the electrical resistance of each of said channels.
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13. A pressure sensor capable of indicating intensity and location of an applied pressure, comprising:
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an elastomeric sheet defining a two dimensional surface; a first plurality of micro-channels, embedded in said elastomeric sheet, extending along the two dimensional surface and a second plurality of micro-channels, embedded in said elastomeric sheet, extending along the two dimensional surface transverse to but not intersecting the first plurality of micro-channels; an electrically conductive liquid filling at least one of the first plurality of micro-channels and at least one of the second plurality of micro-channels; and wherein the first plurality of micro-channels do not intersect with the second plurality of micro-channels and the electrically conductive fluid filling at least one of the first plurality of micro-channels does not come in contact with the electrically conductive fluid filling at least one of the second plurality of micro-channels. - View Dependent Claims (14)
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Specification