Coriolis flowsensor
AssigneeBerkin B.V.
InventorsJoost Conrad Lotters, Jarno Groenesteijn, Remco Gerardus Petrus Sanders, Remco John Wiegerink
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Abstract
The invention relates to a Coriolis flow sensor, comprising at least a Coriolis-tube, wherein the flow sensor comprises excitation means for causing the tube to oscillate, as well as detection means for detecting at least a measure of displacements of parts of the tube during operation. According to the invention, the detection means comprise two detection elements that are positioned on both sides of the Coriolis tube, wherein the detection elements partly overlap each other.
Claims4
Coriolis flow sensor, comprising:
- a Coriolis tube (3);
- excitation means (9, 9′, 10) for oscillating said tube about an excitation axis (29), wherein the Coriolis tube comprises a measuring tube part (124, 124′) that extends transversely with respect to the excitation axis (29);
- as well as
- detection means (112, 112′) for detecting, in use, at least a measure for movements of part of the Coriolis tube (3), wherein the detection means comprise two detection elements (112, 112′) that are positioned on opposite sides of the measuring tube part (124), partly overlapping the excitation axis (29), wherein the detection elements (112, 112′), as seen in a direction parallel to the excitation axis (29), are provided behind each other and partly overlapping each other, and wherein at least one of the two detection elements (112, 112′) is positioned asymmetrical with respect to the excitation axis (29).
Coriolis flow sensor according to any one of the previous claims, wherein the Coriolis tube (3) is substantially U-shaped.
Coriolis flow sensor according to any one of the previous claims, wherein the detection elements are read out electrodes (111, 113;
- 111′, 113′).
Dependencies are inferred from the claim text.