Flowmeter having electrical sensor elements connected in series and applied to an outer surface of a guide structure
A flowmeter has a guide structure that can have medium flowing through it and which preferably operates using the Coriolis principle. To provide a flowmeter that allows a high as possible measuring accuracy with a space requirement that is as small as possible, at least one sensor element is applied on an outer surface of the guide structure for determining and/or monitoring at least one process variable.
1. Flowmeter, comprising:
a guide structure through which a medium is flowable, and
at least two electrical sensor elements applied to an outer surface of said guide structure,
one of said at least two sensor elements being a strain-measuring element and another of said at least two sensor elements being a temperature-measuring element, and
said strain-measuring element and said temperature-measuring element being electrically connected in series, and
wherein measurements obtained by the strain-measuring element and said temperature-measuring element are obtained directly at a point in the series connection between them;
wherein said guide structure has at least two measuring tubes,
wherein each sensor element of said at least two sensor elements is arranged on an outer surface of one of said at least two measuring tubes, and
wherein relative circumferential position of said at least two sensor elements around the respective measuring tube are different, and
wherein said at least two sensor elements are arranged on a carrier element.
2. Flowmeter according to claim 1 , wherein said guide structure has at least four measuring tubes which are superimposed in two rows and mounted flush on one another in two columns, wherein each sensor element of said at least two sensor elements is associated with a respective measuring tube, wherein the relative positions of the sensor elements differ circumferentially around the respective measuring tube, and wherein the measuring tubes with which said at least two sensor elements are associated are located in different rows and columns of said four measurement tubes.