Distribution type tactile sensor
First Claim
1. A distribution type tactile sensor comprising:
- a plurality of electrodes provided in pairs at respective pressure sensing points on a pressure sensitive conductive rubber sheet capable of changing the electrical resistance responsive to compressive forces; and
rectifier means provided to respective electrodes for rectifying the current flowing across each pair of electrodes through the rubber sheet, the electrodes being divided into groups each comprising electrodes arranged in a line corresponding to respective polarities of the electrodes, wherein electrodes in respective electrode groups are parallel connected to one another through electrode leads, and directions of a division of electrode groups divided into respective polarities are crossed with one another at respective pressure sensing points;
wherein belts of the pressure sensitive conductive rubber sheet are disposed in a mutually parallel and spaced arrangement on pairs of electrodes provided on a sensor board in a chessboard arrangement, a cover having a relatively low friction resistance and comprising a flexible material is applied to the surfaces of the belts of the rubber sheet, and a flexible surface-forming member is further applied on the cover thereby providing a laminate structure; and
wherein the peripheral edge of the laminate structure is fixed and electrodes having respective polarities are divided into respective groups in a mutually perpendicular arrangement.
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Accused Products
Abstract
A distribution type tactile sensor, which comprises a plurality of electrodes provided in pairs at respective pressure sensing points on a pressure sensitive conductive rubber sheet capable of changing the electrical resistance responsive to compressive forces, and a rectifier element provided to respective electrodes for rectifying the current flowing across each pair of electrodes through the rubber sheet, the electrodes being divided into groups each comprising electrodes arranged in a line for respective polarities of the electrodes, electrodes in respective electrode groups being parallel connected to one another through electrode leads, and directions of the division of electrode groups divided for respective polarities being crossed with one another at respective pressure sensing points.
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Citations
8 Claims
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1. A distribution type tactile sensor comprising:
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a plurality of electrodes provided in pairs at respective pressure sensing points on a pressure sensitive conductive rubber sheet capable of changing the electrical resistance responsive to compressive forces; and rectifier means provided to respective electrodes for rectifying the current flowing across each pair of electrodes through the rubber sheet, the electrodes being divided into groups each comprising electrodes arranged in a line corresponding to respective polarities of the electrodes, wherein electrodes in respective electrode groups are parallel connected to one another through electrode leads, and directions of a division of electrode groups divided into respective polarities are crossed with one another at respective pressure sensing points; wherein belts of the pressure sensitive conductive rubber sheet are disposed in a mutually parallel and spaced arrangement on pairs of electrodes provided on a sensor board in a chessboard arrangement, a cover having a relatively low friction resistance and comprising a flexible material is applied to the surfaces of the belts of the rubber sheet, and a flexible surface-forming member is further applied on the cover thereby providing a laminate structure; and
wherein the peripheral edge of the laminate structure is fixed and electrodes having respective polarities are divided into respective groups in a mutually perpendicular arrangement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification