Pressure sensor module with sensor cell and adapter
First Claim
1. A pressure senior module, comprised at least of a pressure sensor chip for detecting a pressure, wherein said pressure sensor chip is connected to a pressure fitting that conducts the pressure to the pressure sensor chip, wherein the pressure fitting (19) has an adapter (21) connected to it, wherein said adapter receives the pressure and transmits the pressure to the pressure sensor chip (7) by means of the pressure fitting (19), wherein said adapter protects the pressure sensor chip (7) from mediums that could damage the pressure sensor chip (7), wherein the pressure sensor module (1) is disposed in an Insertion opening (69) of a wall (53), wherein the pressure sensor module (1) has a separating membrane (29), wherein the wall (53) encloses a medium(59), wherein said medium is in contact with the separating membrane (9), and wherein the pressure sensor module (1) can be moved partway out from the insertion opening (69) when the medium (59) freezes and expands.
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Accused Products
Abstract
In a pressure sensor module according to the prior art, which is intended for detecting the pressure of a corrosive medium, the conventional sensor cell with a pressure sensor chip is modified in order to protect it from corrosion, which results in a large volume for a pressure-transmitting-fluid. This is disadvantageous for the calibration and for a high degree of measurement precision.
In a pressure sensor module (1) according to the invention, a convention sensor cell (5) is used that has an adapter (21) connected to it, which has a very small volume for a pressure-transmitting medium.
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13 Claims
- 1. A pressure senior module, comprised at least of a pressure sensor chip for detecting a pressure, wherein said pressure sensor chip is connected to a pressure fitting that conducts the pressure to the pressure sensor chip, wherein the pressure fitting (19) has an adapter (21) connected to it, wherein said adapter receives the pressure and transmits the pressure to the pressure sensor chip (7) by means of the pressure fitting (19), wherein said adapter protects the pressure sensor chip (7) from mediums that could damage the pressure sensor chip (7), wherein the pressure sensor module (1) is disposed in an Insertion opening (69) of a wall (53), wherein the pressure sensor module (1) has a separating membrane (29), wherein the wall (53) encloses a medium(59), wherein said medium is in contact with the separating membrane (9), and wherein the pressure sensor module (1) can be moved partway out from the insertion opening (69) when the medium (59) freezes and expands.
Specification