Printed capacitive sensor
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United States of America Patent
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May 6, 2008
Grant Date -
Aug 16, 2007
app pub date -
Apr 4, 2007
filing date -
Feb 10, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a flexible, resilient capacitive sensor suitable for large-scale manufacturing. The sensor includes a dielectric, an electrically conductive detector and trace layer on the first side of the dielectric layer comprising a detector and trace, an electrically conductive reference layer on a second side of the dielectric layer, and a capacitance meter electrically connected to the trace and to the conductive reference layer to detect changes in capacitance upon interaction with detector. The sensor is shielded to reduce the effects of outside interference.
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