Measuring system

Details Measuring system Measuring system

1989-12-06

1991-01-22

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to multiple loads or load components

361278, 361283, G01L 516, G01L 114

Patent

active

049861360

ABSTRACT:
A measuring system in which flexible mats of individual cells are distributed in rows and columns of a matrix are individually pollable for converting mechanical pressures applied locally on surfaces of the mats, into electrical signals. Each cell constitutes a capacitor with capacitance that varies with the applied mechanical pressure. A source of voltage is connectable to each cell, and each cell has an upper surface and a lower surface. Pressure is applied to the upper surface, and a dielectric is positioned between the upper surface and the lower surface. The upper surface has a plurality of parallel strip-shaped areas with projections, whereas the lower surface has a plurality of parallel electrically conductive strip-shaped areas which extend at right angles to the first strip-shaped areas on one side of the dielectric to form a capacitor cell at each intersection. The intersections deforms resiliently under applied pressure to vary the capacitance under pressure.

REFERENCES:
patent: 3328653 (1967-06-01), Wolf, Jr.
patent: 3875481 (1975-04-01), Miller et al.
patent: 4793193 (1988-12-01), Borgudd
patent: 4852443 (1989-08-01), Duncan et al.

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