The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2012
Filed:
Jun. 04, 2008
Ulfert Drewes, Müllheim, DE;
Frank Hegner, Lörrach, DE;
Andreas Rossberg, Bad Säckingen, DE;
Elke Schmidt, Bad Säckingen, DE;
Sabine Stolle, Dresden, DE;
Christel Kretschmar, Dohria, DE;
Melanie Hentsche, Dresden, DE;
Ulfert Drewes, Müllheim, DE;
Frank Hegner, Lörrach, DE;
Andreas Rossberg, Bad Säckingen, DE;
Elke Schmidt, Bad Säckingen, DE;
Sabine Stolle, Dresden, DE;
Christel Kretschmar, Dohria, DE;
Melanie Hentsche, Dresden, DE;
Endress + Hauser GmbH + Co. KG, Maulburg, DE;
Abstract
A pressure sensor includes a platform and an elastic measuring membrane, which is joined with a surface of the platform to form a measuring chamber sealed closed at the edge, wherein the platform and/or the measuring membrane comprise ceramic, glass or a single crystal material, the measuring membrane has at least a first electrode, which faces the surface of the platform, the surface of the platform has at least a second electrode, which faces that of the measuring membrane. The capacitance between the first electrode and the second electrode is a measure for the pressure to be measured; wherein additionally at least one of the first and second electrodes comprises a conductive layer, which contains metal and glass, and wherein the metal comprises at least two noble metal elements.