KR950023983A - Transducer array - Google Patents

Abstract

The present invention relates to a pressure sensing transducer array in which a plurality of transducers are connected in series and parallel to each other. In one embodiment, the resistive layer is formed of carbon or silk ink on the polyester film. A plurality of conductive branching elements with greater conductivity than the resistive layer are formed on the second polyester film. The films are disposed adjacent to each other at the branching elements that contact the resistive layer. Voltage is applied across the resistive layer and pressure is applied there. As the pressure increases, the number of current paths set through the contacts other than the branch elements increases by decreasing the resistance across the resistive layer and increasing the current flow. In other embodiments, the plurality of plate elements are included in one plane of the dielectric layer. Multiple plate elements are included in the other plane of the dielectric layer. As the layers are pushed together according to the force applied, the total capacitance measured across the plane of the plate element changes.

Description

Transducer array

Since this is an open matter, no full text was included.

1 is a perspective view made in accordance with the present invention.

Figure 2A is an enlarged cross-sectional view cut along the lines 2A-2A in Figure 2B illustrating the current flow path through the branching element adjacent to the resistive layer.

FIG. 2B schematically illustrates some electrical contacts between the branch element and the resistive layer, and an enlarged view of the branch element and adjacent resistive layer portions in the transducer of FIG.

2C is a graph of resistance versus pressure for each contact described in FIG. 2B.

Claims (10)

A transducer for generating a resistance value according to an applied physical area, the transducer comprising: a first consumer-conductive substrate; A planar conductive element formed over the first substrate; A first contact electrically connected to a first position on the conductive element; A second contact electrically connected to a second position of the conductive component spaced from the first position; Second non-conductive substrate; A plurality of branching elements mounted on the second substrate disposed opposite the first substrate by the conductive element and the branching element facing each other to form a cluster of branching elements; Means for compressing the first and second substrates with each other according to an applied physical pressure; And a device for measuring a resistance change between the first and second contacts resulting from a change in electrical contact between the branch element and the conductive element. 10. The transducer as in claim 1 further comprising means for electrically interconnecting branching elements to one another. 3. The transducer as in claim 2 wherein said interconnecting means comprises series and parallel electrical connections between branch elements. 2. The apparatus of claim 1, wherein said means for compressing said substrates comprises: a planar support surface for supporting said substrate; And actuator means having an undersurface disposed on said substrate and opposingly compressing said substrate between said undersurface and said support surface. The transducer of claim 1, wherein the first non-conductive substrate is formed of a film and the conductive layer is a screen printed on the first substrate. 6. The transducer as claimed in claim 5, wherein the second non-conductive substrate is formed of a film and the branch element is formed of a conductive ink screen printed on the second substrate. The transducer of claim 1, wherein the branching element is sized and positioned in a predetermined geometric pattern selected to provide the desired pressure versus resistance operating characteristics of the transducer. 2. The transducer as in claim 1 wherein each branch element is substantially rectangular. 2. The transducer as in claim 1 wherein said branch element is disposed in a rectangular array of rows and columns. 10. The transducer as in claim 9 wherein the rows of the array are staggered with respect to each other. ※ Note: The disclosure is based on the initial application.