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:
Sep. 04, 2018
Filed:
Nov. 03, 2014
Endress + Hauser Gmbh + Co. KG, Maulburg, DE;
Bernhard Jochem, Darmstadt, DE;
Timo Kober, Dietzenbach, DE;
Benjamin Lemke, Berlin, DE;
Darina Riemer Woyczehowski, Taunusstein, DE;
Rafael Teipen, Berlin, DE;
Anh Tuan Tham, Berlin, DE;
Roland Werthschutzky, Kleinmachnow, DE;
ENDRESS + HAUSER GMBH + CO. KG, Maulburg, DE;
Abstract
A differential pressure sensor comprises a measuring diaphragm made of an electrically conductive material, two electrically insulating mating bodies, and at least one capacitive transducer. The measuring diaphragm is connected to the mating bodies in a pressure-tight manner with the formation of a measuring chamber in each case along a circumferential edge. The mating bodies each have a diaphragm bed which is concave in the center, wherein the mating bodies each have a pressure channel which extends through the mating body into the measuring chamber. The capacitive transducer has at least one mating body electrode which is formed by a metallic coating of the surface of the mating body in the region of the diaphragm bed and with which contact can be made by a metallic coating of the wall of the pressure channel. The mating body electrode is formed by an inner region of the metallic coating, which inner region is annularly enclosed by an outer region of the coating and is separated from the latter by an annular insulation region.