| US 7,612,328 B2 | ||
| Foil-type pressure sensor | ||
| Jean-Luc Kaiser, Erpeldange (Luxembourg) | ||
| Assigned to IEE International Electronics & Engineering S.A., Luxembourg (Luxembourg) | ||
| Appl. No. 11/995,414 PCT Filed Jul. 11, 2006, PCT No. PCT/EP2006/064095 § 371(c)(1), (2), (4) Date Mar. 13, 2008, PCT Pub. No. WO2007/006782, PCT Pub. Date Jan. 18, 2007. |
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| Claims priority of application No. 5106319 (EP), filed on Jul. 11, 2005. | ||
| Prior Publication US 2008/0224029 A1, Sep. 18, 2008 | ||
| Int. Cl. G01J 1/04 (2006.01); G01J 1/56 (2006.01) | ||
| U.S. Cl. 250—231.19 [250/227.14; 73/705] | 10 Claims |
| 1. A foil-type pressure sensor comprising;
a first foil and a second foil;
a spacer in between said first and second foils, said spacer having an opening defining a sensing region in which the first
and second foils can be brought closer one to the other against a resiliency of the foils by pressure acting upon said pressure
sensor;
light emitting means arranged between said foils for inputting light into said sensing region; and
light collecting means arranged between said foils for collecting light propagated from said light emitting means through
said sensing region to said light collecting means;
wherein at least one of said first and second foils at least partially blocks light propagation through said sensing region
when the first and second foils are brought closer one to the other.
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