How does a scraper flow meter work? What are its features?

Working principle: Each rotation of the rotor dispenses a certain amount of fluid; by counting the number of rotations, the instantaneous flow rate and the cumulative flow rate can be determined. Main features: a High measurement accuracy, wide flow range, and good repeatability ； b Smooth rotation, no pressure fluctuations in the fluid within the pipeline, and no vibrations ； c The accuracy is less affected by changes in the viscosity of the medium being measured ； d The single-shell structure is simple, with a small size and light weight ； The double-shell structure prevents the metering chamber from deforming due to high pressure, ensuring measurement accuracy; it also allows the inner shell components to be removed for maintenance, as well as for cleaning the pipes, performing line inspections, and pressure testing ； e. Various counters and transmitters can be installed as needed to provide on-site indication or transmit electrical signals over long distances ； f. The fluid state does not affect measurement accuracy; there is no need for straight sections before and after the flow meter, which saves space and costs.