Foil-type pressure sensor

Details Foil-type pressure sensor Foil-type pressure sensor

2006-07-11

2009-11-03

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S227140, C073S705000

Reexamination Certificate

active

07612328

ABSTRACT:
A foil-type pressure sensor includes a first foil and a second foil. A spacer is arranged in between the first and second foils, which keeps the foils at a certain distance from each other. The spacer presents an opening that defines a sensing region. In this sensing region, the first and second foils can be brought closer one to the other against the resiliency of the foils by pressure acting on the pressure sensor. The pressure sensor further includes light emitting means arranged between the foils for inputting light into the sensing region and light collecting means arranged between the foils for collecting light propagated from the light emitting means through at least part of the sensing region to the light collecting means. When the first and second foils are brought closer one to the other, at least one of the first and the second foils at least partially blocks light propagation through the sensing region.

REFERENCES:
patent: 4078432 (1978-03-01), Stewart
patent: 4405197 (1983-09-01), Bejczy
patent: 5689107 (1997-11-01), Hsu
patent: 3236435 (1984-04-01), None
patent: 3916350 (1990-11-01), None
patent: 2578974 (1986-09-01), None
patent: 2604783 (1988-04-01), None
International Search Report; PCT/EP2006/064095; Oct. 25, 2006.

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