Measuring and testing – Gas analysis – Detector detail
Patent
1998-07-27
1999-10-19
Williams, Hezron
Measuring and testing
Gas analysis
Detector detail
73 232, 422 98, 20419225, 4272552, G01N 2700, B01J 2106, H01C 700
Patent
active
059692324
ABSTRACT:
The invention relates to a catalytic layer system on a resistive gas sensor, especially on a resistive gas sensor layer on a titanate base, with at least one first layer and a second layer lying over the first layer, where, according to the invention, the first layer exhibits a catalytically active substance whose volume percentage in the layer ranges from 20 to 80%. In addition, the first layer contains a titanate that corresponds to at least one titanate of the underlying gas sensor layer. This attribute guarantees favorable adhesion between the layers. Furthermore, an oxide mixture that contributes to the improved mechanical stability of the layer system is provided in the second layer instead of the catalytically active substance. To manufacture the catalytic layer system, the individual layers are applied to the sensor in a screen printing process, which allows for a rational method of production and the precise dosing and distribution of the individual layer components.
REFERENCES:
patent: 4024036 (1977-05-01), Nakamura et al.
patent: 4863583 (1989-09-01), Kurachi et al.
patent: 4937219 (1990-06-01), Haruta et al.
patent: 4977658 (1990-12-01), Awano et al.
patent: 5018380 (1991-05-01), Zupancio et al.
patent: 5086286 (1992-02-01), Yasukawa et al.
patent: 5212050 (1993-05-01), Mier et al.
patent: 5389340 (1995-02-01), Satake
patent: 5578283 (1996-11-01), Chen et al.
patent: 5629474 (1997-05-01), Williams
patent: 5698267 (1997-12-01), Friese et al.
Schonauer Ulrich
Tafferner Michael
Heraeus Electro-Nite International N.V.
Wiggins J. David
Williams Hezron
LandOfFree
Catalytic layer system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Catalytic layer system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalytic layer system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2058034