Sensor for a thermal, flow measuring device, a thermal, flow measuring device and a method for manufacturing a sensor of a thermal, flow measuring device
AssigneeEndress + Hauser Flowtec AG
InventorsStephan GABERTHÜEL, Alexander GRÜN, Hanno SCHULTHEIS, Tobias BAUR
Life of this patent
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Abstract
The invention relates to a sensor of a thermal, flow measuring device, to a thermal, flow measuring device and to a method for manufacturing such a sensor, wherein the sensor has a sensor cup having at least one protrusion, which assures a constant spacing of a sensor element from a cup floor, so that a good temperature transfer between sensor and a medium flowing around the sensor is assured.
Claims16
1-15. (canceled)
A sensor for a thermal, flow measuring device, comprising:
- a sensor cup having a first longitudinal axis, a lateral surface, an open first end, and a closed second end with a cup floor, wherein the first longitudinal axis intersects the first end and the second end perpendicularly, and wherein a floor surface of the cup floor facing in the direction of the first end is essentially flat;
- a sensor element arranged in the sensor cup in a region of the cup floor;
- and
- a solder layer adapted to connect the sensor element thermally with the cup floor,
- wherein at least one protrusion extends from the floor surface, the at least one protrusion adapted to position the sensor element in a defined manner relative to the floor surface, and wherein the sensor element is in direct contact with the at least one protrusion.
A thermal, flow measuring device for measuring the mass flow of a medium in a measuring tube, comprising:
- at least one sensor including:
- a sensor cup having a first longitudinal axis, a lateral surface, an open first end, and a closed second end with a cup floor, wherein the first longitudinal axis intersects the first end and the second end perpendicularly, and wherein a floor surface of the cup floor facing in the direction of the first end is essentially flat;
- a sensor element arranged in the sensor cup in the region of the cup floor;
- and
- a solder layer adapted to connect the sensor element thermally with the cup floor,
- wherein at least one protrusion extends from the floor surface, the at least one protrusion adapted to position the sensor element in a defined manner relative to the floor surface, and wherein the sensor element is in direct contact with the at least one protrusion;
- a measuring tube having a second longitudinal axis, wherein the sensor is disposed in the measuring tube;
- and
- an electronic operating circuit adapted to operate the at least one sensor.
A method for manufacturing a sensor for a thermal, flow measuring device for measuring the mass flow of a medium in a measuring tube, comprising:
- producing at least one protrusion extending from a floor surface of a cup floor of a sensor cup;
- applying a solder layer on the cup floor;
- and
- melting the solder layer and pressing a sensor element against the protrusion.
Dependencies are inferred from the claim text.