Surface sensor
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United States of America Patent
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Nov 14, 2017
Issued Date -
N/A
app pub date -
Jun 23, 2014
filing date -
Jul 12, 2013
priority date (Note) -
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Abstract
A sensor unit for measuring surface structures and properties of an object of organic tissue includes a contact surface adapted to have mechanical contact with the object, a first dielectric layer made from a dielectric material, a first conductor layer including at least one shielding electrode essentially covering an area of the dielectric layer facing the contact surface, the at least one shielding electrode surrounding at least one essentially non-conductive aperture defining a sensing region, and a second conductor layer separated from the first conductor layer by the first dielectric layer and comprising a number of conductive wires extending at least partially under the at least one aperture and having a direction essentially perpendicular to the sensing region, each wire having a predetermined width. A sensing area of each wire is defined by the width and the length of each wire extending in the sensing region.
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