Bending sensor

Details Bending sensor Bending sensor

1996-05-29

1997-07-29

Dougherty, Elizabeth L.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73762, 73775, G01N 320

Patent

active

056523955

ABSTRACT:
A bending sensor of the invention is formed of a flexible segment, a pressure-sensitive electrically-conductive resin film formed on the flexible segment, and a pair of electrodes to be attached to the resin film. The resin film is made of pressure-sensitive electroconductive ink and coated on the segment. The resin film has a characteristic such that an electric resistance value is reduced as a pressure on the resin film increases. When the segment is bend-formed at an inflection point by receiving an outer force, the segment provides a pressure to the resin film at the inflection point to produce an inner stress in the resin film. When the segment is bent-deformed, the electrodes output a resistance change of the resin film to thereby detect bending of the flexible segment.

REFERENCES:
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patent: 4002060 (1977-01-01), Ogata et al.
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patent: 4085949 (1978-04-01), Asao et al.
patent: 4715235 (1987-12-01), Fukui et al.
patent: 5086652 (1992-02-01), Kropp
patent: 5192938 (1993-03-01), Ort
patent: 5325721 (1994-07-01), Pendergrass, Jr.
patent: 5533391 (1996-07-01), Brade et al.

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