A water flow velocity and flow direction measuring device and method based on a magnetic suspension robot

Abstract

This invention belongs to the field of underwater measurement and discloses a device and method for measuring water flow velocity and direction based on a magnetically levitated robot. The invention includes a float assembly and a base assembly, with the float assembly magnetically levitated above the base assembly. The invention determines the water flow direction based on the yaw angle of the float assembly under the influence of water flow and determines the water flow velocity based on the pitch angle, achieving simultaneous measurement of water flow velocity and direction through a single magnetic levitation structure. Furthermore, this invention eliminates mechanical contact and frictional wear, thus avoiding the friction, corrosion, and biofouling problems associated with bearings, shafts, and other components in traditional mechanical flowmeters. In addition, the invention offers high accuracy in measuring water flow velocity and direction. The sensing module simultaneously monitors changes in the magnetic field of the float assembly and the attitude changes of the base assembly. The computing unit eliminates interference caused by base assembly movement or installation tilt through attitude compensation, extracting the attitude changes of the float assembly caused by the actual water flow, resulting in more accurate measurement results.

Images