Abstract: An in-line flowmeter sensor device and an in-line flowmeter are configured to be arranged in-line with a conduit supporting a multi-phase fluid flow including first and second matter groups. The second matter group has a lower density than the first matter group. The sensor device includes: an inlet and an outlet arranged at respective ends of the flowmeter sensor device; and a measurement chamber arranged between the inlet and the outlet. The measurement chamber is configured to split the first and second matter groups into first and second flow regions, respectively, of the measurement chamber. A flow meter sensor element is arranged in or adjacent the first region.

Abstract: An electromagnetic flowmeter and a method for measuring a property of a fluid composition are provided. The electromagnetic flowmeter includes a first electric conductor with first and second ends, arranged inside a fluid conduit carrying a fluid composition comprising hydrocarbons, an RF electric signal source, and a first dual signal detector including first and second input ports. The first terminal of the electric signal source is connected to the first end of the first electric conductor and arranged to induce an RF electromagnetic wave in the fluid conduit by supplying an input electric signal to the first end of the first electric conductor. The first and second ports of the signal detector are connected to the first and second ends of the first electric conductor, respectively.

Abstract: An electromagnetic flowmeter and a method for measuring a property of a fluid composition, a first electric conductor with first and second ends, configured to be arranged inside a fluid conduit carrying a fluid composition comprising hydrocarbons, an RF electric signal source, and Abstract a first dual signal detector comprising first and second input ports, wherein a first terminal of the electric signal source is connected to the first end of the first electric conductor and configured to induce an RF electromagnetic wave in the fluid conduit by supplying an input electric signal to the first end of the first electric conductor, the first and second ports of the signal detector are connected to the first and second ends of the first electric conductor, respectively.