CAPACITIVE SENSOR AND METHOD OF MEASURING ELASTIC DEFORMATION AMOUNT, ELASTIC DEFORMATION DISTRIBUTION, OR SURFACE PRESSURE DISTRIBUTION

摘要

PROBLEM TO BE SOLVED: To provide a capacitive sensor which is capable of measuring capacitance with high accuracy by removing crosstalk capacitance.SOLUTION: The capacitive sensor includes: a dielectric layer comprising an elastomer composition; a front side electrode layer which is laminated on the front surface side of the dielectric layer and comprises a plurality of front side conductive parts arranged like stripes; a rear side electrode layer which is laminated on the rear surface side of the dielectric layer and comprises a plurality of rear side conductive parts arranged like stripes so as to be substantially orthogonal to the plurality of front side conductive parts in plan view; and measuring means which measures capacitances of detection parts formed in respective intersection areas between the plurality of front side conductive parts and the plurality of rear side conductive parts in plan view. The plurality of front side conductive parts and the plurality of rear side conductive parts include carbon nano tubes. The capacitive sensor further includes control means which connects selected one of the front side conductive parts and selected one of the rear side conductive parts to the measuring means so as to apply a fixed voltage to them and connects the other front side conductive parts and/or the other rear side conductive parts to the ground.