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:
Aug. 20, 2013
Filed:
Feb. 02, 2010
Raimund Becher, Ehrenkirchen, DE;
Ralf Nurnberger, Potsdam, DE;
Fred Haker, Kleinmachnow, DE;
Olaf Krusemark, Kassel, DE;
Olaf Textor, Lorrach, TX (US);
Raimund Becher, Ehrenkirchen, DE;
Ralf Nurnberger, Potsdam, DE;
Fred Haker, Kleinmachnow, DE;
Olaf Krusemark, Kassel, DE;
Olaf Textor, Lorrach, TX (US);
Endress + Hauser GmbH + Co. KG, Maulburg, DE;
Abstract
A pressure sensor, comprising: a semiconductor pressure measuring transducer having a measuring membrane and a circuit for transducing a deformation of the measuring membrane into a signal; a pressure transfer structure having a hydraulic path, which extends through a solid body between a first a second opening. The first opening is sealed by an isolating diaphragm, which is contactable with a pressure, in order to introduce the pressure to be measured into the hydraulic path. The hydraulic path opens, at the second opening, into a transducer chamber, in which the pressure measuring transducer is arranged and which is sealed by the measuring membrane of the pressure measuring transducer. The hydraulic path contains a transfer liquid; a filling element, which is arranged in the transducer chamber, in order to fill hollow spaces between metal walls of the transducer chamber and the semiconductor pressure measuring transducer. An insulator plate, which is arranged in the transducer chamber between the measuring membrane and a wall of the transducer chamber lying opposite the measuring membrane; wherein the insulator plate is affixed to the filling element or is embodied as one piece with the filling element.