A method of determining a fraction of one or more phases in a fluid, a system for determining a fraction of one or more phases of a fluid, and a method for determining phase fractions in a fluid.

摘要

It is a method of determining a fraction of one or more phases in a multi-phase fluid in a conduit. The method includes exciting (602) a pickup device to cause the emission of electromagnetic waves from a frequency range in a multiphase fluid. the pickup device comprises an antenna and a dielectric layer selected to resonate at least one of a first frequency set or a second frequency set based on a multiphase fluid flow state when placed in proximity. with the multiphase fluid. The method also includes receiving (604) transmitted or reflected electromagnetic waves from the multiphase fluid. The multiphase fluid flow state is selected (606) based on a rating parameter. Fractions are determined (608) using at least one fraction determination model which is selected based on the multiphase fluid flow state.