Multi-angle pressure sensor
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United States of America Patent
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Sep 11, 2018
Grant Date -
Dec 1, 2016
app pub date -
Nov 25, 2015
filing date -
May 29, 2015
priority date (Note) -
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Abstract
A pressure sensor able to value touch pressures at oblique angles includes a substrate base, a deformable substrate disposed on the substrate base, and a carbon nanometer layer disposed on the deformable substrate. A cover plate is disposed on the carbon nanometer layer, and two flexible power circuit boards electrically connect the carbon nanometer layer to the substrate base. The device includes a processor. The substrate base includes a substrate and a pad. The pad is located between the substrate and the deformable substrate. The deformable substrate and the cover plate are made of elastic materials. The processor calculates lateral pressures based on the resistance variation value due to the vertical deformation of the carbon nanometer layer and the capacitance variation value between the carbon nanometer layer and the pads when an external physical resistance is experienced as a force applied to the cover plate.
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