Flexible capacitive sensor
First Claim
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1. A flexible capacitive sensor comprising:
- a flexible, resilient dielectric layer having a first and a second side;
a first conductive layer on the first side of the dielectric layer comprising at least one first conductive element;
a second conductive layer on the second side of the dielectric layer;
wherein the first conductive elements overlap at least partially the second conductive layer; and
,a capacitance meter electrically connected to the conductive elements, wherein the capacitance meter measures change in capacitance between the first conductive layer and the second conductive layer, and wherein the capacitance meter determines the position of a point of user interaction along the first conductive element of the first conductive layer.
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Abstract
The invention relates to a flexible, resilient capacitive sensor suitable for large-scale manufacturing. The sensor comprises a dielectric, an electrically conductive layer on the first side of the dielectric layer, an electrically conductive layer on a second side of the dielectric layer, and a capacitance meter electrically connected to the two conductive layers to detect changes in capacitance upon application of a force to the detector. The conductive layers are configured to determine the position of the applied force. The sensor may be shielded to reduce the effects of outside interference.
148 Citations
13 Claims
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1. A flexible capacitive sensor comprising:
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a flexible, resilient dielectric layer having a first and a second side; a first conductive layer on the first side of the dielectric layer comprising at least one first conductive element; a second conductive layer on the second side of the dielectric layer;
wherein the first conductive elements overlap at least partially the second conductive layer; and
,a capacitance meter electrically connected to the conductive elements, wherein the capacitance meter measures change in capacitance between the first conductive layer and the second conductive layer, and wherein the capacitance meter determines the position of a point of user interaction along the first conductive element of the first conductive layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification