Detector constructed from fabric having planes with differing conductance
First Claim
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1. A position detector constructed from fabric having a first electrically conductive fabric plane and a second electrically conductive fabric plane, whereina plurality of wires are connected to said first plane so as to establish at least one electrical potential gradient across said plane;
- a mechanical interaction brings said first electrically conducting plane into contact with said second electrically conducting plane such that current flows at the position of said contact;
a single wire is connected to said second plane so as to allow said current to flow; and
the resistivity of said first plane is higher than the resistivity of said second plane so as to facilitate the establishment of a potential gradient across said first plane and to facilitate current flow through said second plane.
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Abstract
A position detector is constructed from fabric having electrically conductive elements. The detector has at least two electrically conductive planes. An electrical potential is applied across one of the planes to determine the position to a mechanical interaction. In addition, second electrical property is determined to identify additional properties of the mechanical interactions.
70 Citations
8 Claims
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1. A position detector constructed from fabric having a first electrically conductive fabric plane and a second electrically conductive fabric plane, wherein
a plurality of wires are connected to said first plane so as to establish at least one electrical potential gradient across said plane; -
a mechanical interaction brings said first electrically conducting plane into contact with said second electrically conducting plane such that current flows at the position of said contact;
a single wire is connected to said second plane so as to allow said current to flow; and
the resistivity of said first plane is higher than the resistivity of said second plane so as to facilitate the establishment of a potential gradient across said first plane and to facilitate current flow through said second plane. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of manufacturing a position detector constructed from fabric, comprising the steps of
connecting a plurality of wires to a first fabric conducting plane such that said plane is configured to have an electrical potential gradient established throughout said plane; -
attaching a single wire to a second fabric electrically conducting plane;
displacing said first fabric from said second fabric so as to establish a position detector; and
connecting detection apparatus to said wires so as to measure current when a mechanical interaction brings said first plane and said second plane into contact, wherein the resistivity of said first plane is higher than the resistivity of said second plane so as to facilitate the establishment of a potential gradient across said first plane and to facilitate current flow through said second plane. - View Dependent Claims (8)
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Specification