Patent ID: 7827866
Filing Date: 2010-11-09
Classification: G01L

Abstract:
1. A pressure transducer for a pressure sensor ( 2 ) for determining at least one pressure (p a , p b ) in a process media ( 3 a , 3 b ), said pressure transducer having a housing ( 4 ) with a separating diaphragm ( 5 a , 5 b ), at least one first pressure-sensing element ( 6 a , 6 b ), a contact media ( 7 a , 7 b ), and at least one first connection element ( 8 a , 8 b ), wherein the separating diaphragm ( 5 a , 5 b ) separates the process media ( 3 a , 3 b ) from the contact media ( 7 a , 7 b ), the contact media ( 7 a , 7 b ) conveys the pressure (p a , p b ) of the process media ( 3 a , 3 b ) determined by the separating diaphragm ( 5 a , 5 b ) to the first pressure-sensing element ( 6 a , 6 b ), and wherein at least one first seal ( 9 a , 9 b ) is provided in housing ( 4 ) which houses the first connection element ( 8 a , 8 b ) and wherein the housing ( 4 ), the separating diaphragm ( 5 a , 5 b ) and said at least one first seal ( 9 a , 9 b ) form a first pressure chamber ( 10 a , 10 b ), and wherein a second pressure chamber ( 14 ) is provided on the side of the first pressure chamber ( 10 a , 10 b ) opposite said at least one first seal ( 9 a , 9 b ) and a second pressure-sensing element ( 15 ) is arranged in the second pressure chamber ( 14 ).