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:
Mar. 31, 2009
Filed:
Aug. 06, 2005
Jens Peter Krog, Ulstrup, DK;
Casper Pedersen, Koobenhavn, DK;
Carsten Christensen, Bagsvaerd, DK;
Grundfos a/s, Bjerringbro, DK;
Abstract
The invention relates to a pressure sensor with a carrier (), which in an inner region comprises a membrane () on which at least one first measurement element (R) for detecting a pressure impingement of the membrane () is arranged, wherein additionally at least one second measurement element (R) for detecting a pressure impingement of the membrane () is arranged on the membrane, wherein the first measurement element (R) and the second measurement element (R) are arranged distanced differently far from the edge of the membrane, and the output signals of the first and the second measurement element (R, R) are evaluated together in a manner such that the two measurement elements (R, R) detect a differential pressure acting on the membrane (), and thereby compensate the influence of the system pressure acting on both sides of the membrane ().