Thermal mass flow meter and method for its operation
First Claim
1. A thermal mass flow meter with at least one sensor arrangement which is mounted on a holder and immersed into a vessel with a flowing medium,whereinthe sensor arrangement comprises a first and a second measuring element, with one of the respective measuring elements being heated while the other respective measuring element is not heated and wherein the two measuring elements can be heated alternately.
1 Assignment
0 Petitions
Accused Products
Abstract
A thermal mass flow meter is disclosed for determining a material flow through a vessel. In this case, a sensor arrangement is mounted on a holder immersed into a vessel with a flowing medium. It is proposed that the sensor arrangement comprises a first and a second measuring element, with one of the respective measuring elements being heated while the other respective measuring element is not heated and that the two measuring elements can be heated alternately.
18 Citations
12 Claims
-
1. A thermal mass flow meter with at least one sensor arrangement which is mounted on a holder and immersed into a vessel with a flowing medium,
wherein the sensor arrangement comprises a first and a second measuring element, with one of the respective measuring elements being heated while the other respective measuring element is not heated and wherein the two measuring elements can be heated alternately.
-
7. A method for operating a thermal mass flow meter with at least one sensor arrangement which is mounted on a holder and immersed into a vessel with a flowing medium,
wherein the flow is measured by two measuring elements which are alternately heated intermittently, the measured values of the measuring elements are intermittently compared to one another, and the deviations between the measured values of the measuring elements in successive phases are detected as a change of the measuring elements.
-
11. A sensor arrangement mounted on a holder immersible into a vessel having a flowing medium for thermal mass flow measurement, the mounted sensor arrangement comprising:
-
a first measuring element; a second measuring element; and a holder for mounting the measuring elements, wherein one of the measuring elements is heated while the other of the measuring elements is not heated. - View Dependent Claims (12)
-
Specification