Apparatus and method for sensing surface flexure

Details Apparatus and method for sensing surface flexure Apparatus and method for sensing surface flexure

1995-03-08

1996-10-08

Wysocki, Jonathan

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307112, 73 78, 73104, 73575, 73760, 73763, 356371, 33558, 25044211, 257415, H01H 3502

Patent

active

055634583

ABSTRACT:
Apparatus for sensing the flexure of a surface includes an array of bistable dome shaped switches within the surface which change their state or position depending on the direction and degree of local flexure of the surface. A flexible sheet parallel to the surface carries wiring for detecting the state of the bistable switches and carrying this information to a computer. A second parallel sheet may be used to detect the second position of the bistable switches for extra accuracy. The bistable switches may be linked, meaning the perimeters of the bistable switches overlap, or unlinked. The two stable positions may include two oppositely protruding positions, or one protruding position and one flat position.

REFERENCES:
patent: 3908279 (1975-09-01), Yoslow et al.
patent: 4359892 (1982-11-01), Schnell et al.
patent: 4542375 (1985-09-01), Alles et al.
patent: 4622450 (1986-11-01), Kinoshita et al.
patent: 5373730 (1994-12-01), Kovacevic
patent: 5459577 (1995-10-01), Ototake et al.

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