Endress + Hauser Gmbh + Co. Kg

Endress+hauserse+co. Kg

Peter Selders

Sergej Lopatin

Elke Maria Schmidt

Andreas Rossberg

Udo Grittke

Axel Humpert

Andrea Berlinger

Andreas Spitz

Andreas Roβberg

Thomas Uhlin

Andreas Roßberg

Thomas ÜHlin

A method for manufacturing a pressure sensor, comprising: providing a ceramic platform, a ceramic measuring membrane, and an intermediate ring; providing an active braze material by means of gas phase deposition at least on a first surface section of a first surface and on a second surface section of a second surface. The first surface is a platform surface, which is to be connected with the intermediate ring by means of the active hard solder, or braze, or a surface of the intermediate ring, which is to be connected with the platform by means of the active hard solder, or braze. The second surface is a measuring membrane surface, which is to be connected with the intermediate ring by means of the active hard solder, or braze, or a surface of the intermediate ring, which is to be connected with the measuring membrane by means of the active hard solder, or braze. The intermediate ring is positioned between the measuring membrane and the platform; the active hard solder, or braze, is heated in a soldering, or brazing, process, wherein the intermediate ring remains essentially solid during the soldering, or brazing, process.

Pressure sensor and method for its manufacture

An apparatus for determining and/or monitoring pressure. The apparatus comprises at least one pressure transducer, which transduces pressure into an electrical signal. The invention includes the features that at least one acoustic sensor is provided, that the acoustic sensor registers acoustic signals and transduces such into electrical signals, and that the acoustic sensor is mechanically and/or acoustically coupled with the pressure transducer.

Apparatus for determining and/or monitoring ( {A} ) pressure

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Maulburg, Germany

Peter Selders