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1. (WO1997016834) PIEZOLUMINESCENT SENSOR SHEET WITH A PIEZORESISTIVE LAYER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/016834 International Application No.: PCT/US1996/017205
Publication Date: 09.05.1997 International Filing Date: 24.10.1996
Chapter 2 Demand Filed: 26.03.1997
IPC:
G01L 1/24 (2006.01)
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1
Measuring force or stress, in general
24
by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
Applicants:
GRE, INCORPORATED [US/US]; P.O. Box 30863 Albuquerque, NM 87190-0863, US
Inventors:
GAFFNEY, Edward, S.; US
Agent:
WARD, Calvin, B.; 18 Crow Canyon Court # 305 San Ramon, CA 94583, US
Priority Data:
08/551,58101.11.1995US
Title (EN) PIEZOLUMINESCENT SENSOR SHEET WITH A PIEZORESISTIVE LAYER
(FR) LAME DE CAPTEUR A PIEZOLUMINESCENCE COMPRENANT UNE COUCHE PIEZORESISTIVE
Abstract:
(EN) A pressure transducer (10) that converts a pressure distribution directly into a visible image. The transducer (10) may be viewed as comprising a two-layered structure sandwiched between first and second electrodes that provide a bias potential. The intermediate layers comprise a piezoresistive layer (12) and a light emitting layer (14). The piezoresistive layer (12) includes a material or structure whose resistivity varies as a function of pressure. The light emitting layer (14) is constructed from a material or structure whose light output varies in relation to the current passing through the layer.
(FR) L'invention porte sur un transducteur de pression (10) convertissant directement une répartition de pression en une image visible. Ce transducteur (10) peut être considéré comme comprenant une structure à deux couches prise en sandwich entre une première et une seconde électrode fournissant un potentiel de polarisation. Les couches intermédiaires comprennent une couche piézorésistive (12) et une couche émettant de la lumière (14). La couche piézorésistive (12) comporte un matériau ou une structure dont la résistance spécifique varie en fonction de la pression. La couche émettrice de lumière (14) est faite d'un matériau ou d'une structure dont l'émission lumineuse varie selon le courant traversant la couche.
Designated States: AU, CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1996074780