Single layer force sensor
First Claim
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1. A sensor for sensing an application of pressure, the sensor comprising:
- a substrate;
at least first and second conductive elements supported on the substrate and having elongate edges spaced apart from each other; and
a single electroactive layer for electrically connecting the first and second conductive elements, the single electroactive layer being disposed on the first and second conductive elements and having a common surface adhered against the first and second conductive elements, the single electroactive layer defining at least one electrical property in a portion of the single electroactive layer between the first and second conductive elements, the electrical property configured to vary in relation to a magnitude of the pressure, wherein the electrical property exhibits a characteristic curve that at least partially varies as a function of a distance between the elongate edges, and wherein the single electroactive layer provides a conductive path between the first and second conductive elements.
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Abstract
A sensor for sensing an application of pressure is disclosed. The sensor includes a substrate, conductive elements and an electroactive layer. First and second conductive elements are supported on the substrate and have elongate edges spaced apart from each other. The electroactive layer has a common surface adhered against the conductive elements. The electroactive layer defines at least one electrical property in a portion of the layer between the conductive elements. The electrical property is configured to vary in relation to a magnitude of the pressure.
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Citations
30 Claims
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1. A sensor for sensing an application of pressure, the sensor comprising:
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a substrate; at least first and second conductive elements supported on the substrate and having elongate edges spaced apart from each other; and a single electroactive layer for electrically connecting the first and second conductive elements, the single electroactive layer being disposed on the first and second conductive elements and having a common surface adhered against the first and second conductive elements, the single electroactive layer defining at least one electrical property in a portion of the single electroactive layer between the first and second conductive elements, the electrical property configured to vary in relation to a magnitude of the pressure, wherein the electrical property exhibits a characteristic curve that at least partially varies as a function of a distance between the elongate edges, and wherein the single electroactive layer provides a conductive path between the first and second conductive elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A sensor for sensing an application of pressure, the sensor comprising:
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a substrate; at least first and second conductive elements supported on the substrate and having elongate edges spaced apart from each other; a single electroactive layer for electrically connecting the first and second conductive elements, the single electroactive layer being disposed on the first and second conductive elements and having a common surface adhered against the first and second conductive elements, the single electroactive layer defining at least one electrical property in a portion of the single electroactive layer between the first and second conductive elements, the electrical property configured to vary in relation to a magnitude of the pressure, and wherein the single electroactive layer provides a conductive path between the first and second conductive elements; and a force-deflection element coupled to a side of the single electroactive layer opposite the substrate. - View Dependent Claims (29, 30)
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Specification