Robert Boschgmbh

Michael Kupzig

Helmut Weyl

Claudio De La Prieta

Uwe Glanz

Juergen Wilde

Thomas Schulte

Andreas Pesch

Petra Kuschel

Andreas Hachtel

Markus Siebert

Leonore Schwegler

Thomas Egner

Rainer Mueller

Karsten Funk

Andrea Schilp

A gas sensor is for determining at least one physical quantity of a gas, e.g., an exhaust gas of an internal combustion engine, the gas sensor having a sensor element that is fixed in a housing of the gas sensor by a seal assembly. The seal assembly includes a sealing element, which has a ceramic and/or a metallic material. After the heat treatment, the sealing element has a maximum decrease in volume of 5 percent, or an increase in volume, based on the volume of the sealing element prior to the heat treatment.

Gas sensor

A structural body which, at least region-wise, has at least one area which is in contact with a liquid or a gas flowing past, and which, at least to a great extent, is provided with a surface patterning made of a plurality of randomly or irregularly distributed geometric forms, in particular pyramids. At least one such structural body be used in a capacitive sensor with which, in particular, the dielectric constants or the conductance of a liquid or a gas can be determined.

Structural body having a stochastic surface patterning as well as a capacitive sensor having such a structural body

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Niederkassel, Germany

Michael Kupzig