Patent ID: 7823456
Filing Date: 2010-11-02
Classification: G01L

Abstract:
1. A pressure sensor with a carrier ( 2 ), which in an inner region comprises a membrane ( 4 ) on which at least one first measurement element (R 1− ) for detecting a pressure impingement of the membrane ( 4 ) is arranged, wherein additionally, at least one second measurement element (R 3− ) for detecting a pressure impingement of the membrane ( 4 ) is arranged on the membrane ( 4 ), wherein the first measurement element (R 1− ) is spaced apart a first distance from the edge of the membrane ( 4 ) and the second measurement element (R 3− ) is spaced apart a second distance from the edge of the membrane ( 4 ), the first and second distances being different, and the output signals of the first and the second measurement elements (R 1− , R 3− ) are evaluated together in a manner to detect at least one of a differential pressure acting on the membrane ( 4 ) compensated by the influence of system pressure acting on both sides of the membrane ( 4 ) and a system pressure acting on both sides of the membrane ( 4 ).