Pressure sensor
AssigneePfister Messtechnik GmbH
InventorHans W. Hafner
Life of this patent
Estimating the term…
Abstract
A pressure sensor Comprising a disk-type base part having a preferably central opening spanned at one end by a surface-type pressure transducer, a pressure receiving part having a diaphragm arranged at distance from the other end side of said opening and integrally formed with a rigid ring having the same peripheral dimensions as the disk-type base part and being connected thereto. A distance holder is provided between the diaphragm and the pressure transducer fully transmitting any deformation of the diaphragm to the pressure transducer. Such a pressure transducer may be manufactured by a simple and cost-effective procedure with the various elements formed of ceramic, sintered and combined.
Claims3
A pressure sensor having pressure transmission capability comprising:
- a disk-type base part having a preferably central opening at one end of which there is provided integrally with said base part a surface-type pressure transducer having a first pressure effective area, wherein said surface-type pressure transducer comprises a first diaphragm spanning over said opening in said base part;
- a pressure receiving part including a second diaphragm extending essentially in parallel at a distance from a second end of said opening opposite to said first end thereof and formed integrally at a rigid ring having about the same peripheral dimension on the disk-type base part and being connected thereto, said second diaphragm having a considerably larger pressure-effective area than said pressure transducer;
- and
- distance means arranged between said second diaphragm and said pressure transducer normal thereto and transmitting a deformation of said second diaphragm completely to said pressure transducer.
A pressure sensor having pressure transmission capability comprising:
- a disk-type base part having a preferably central opening at one end of which there is provided integrally with said base part a surface-type pressure transducer having a first pressure effective area;
- a pressure receiving part including a diaphragm extending essentially in parallel at a distance from a second end of said opening opposite to said first end thereof and formed integrally at a rigid ring having about the same peripheral dimensions as the disk-type base part and being connected thereto, said diaphragm having a considerably larger pressure-effective area than said pressure transducer;
- and
- distance means arranged between said diaphragm and said pressure transducer normal thereto and transmitting a deformation of said diaphragm completely to said pressure transducer, wherein said base part and said pressure receiving part are made of ceramic material.
Dependencies are inferred from the claim text.