Three-dimensional canal water flow velocity measuring instrument capable of automatically finding water flow direction

Abstract

The invention discloses a three-dimensional canal water flow velocity measuring instrument capable of automatically finding the water flow direction. A flow velocity sensor 8 is electrically connected with a flow velocity calculation system 10, a vertical rotary shaft 7 penetrates through the flow velocity sensor 8 and leaves with a free gap, the vertical rotary shaft 7 is installed on a frame 2, a transverse rotary shaft 3 penetrates the side frames of a frame 1 and a frame 2, a rotating gap is reserved between the transverse rotary shaft 3 and the frame 2, and the frame 1 is installed on a supporting mechanism. The three-dimensional canal water flow velocity measuring instrument capable of automatically finding the water flow direction solves the problem that when a canal water flow velocity measuring instrument in the prior art is used, measuring errors will occur due to inconsistent direction between the flow velocity sensor 8 and the water flow direction, can be applied to various canals or accessed to a water information monitoring system of an Internet of things, and improves the measuring accuracy of the flow velocity of the canal.

Description

technical field [0001] The invention relates to a liquid flow velocity measuring instrument, in particular to a three-dimensional water velocity measuring instrument for automatically finding the direction of water flow. Background technique [0002] The measurement of water flow velocity in rivers and canals is an important test content for water conservancy, factories and mines, environmental monitoring, hydrogeological survey, agriculture and other departments to monitor and manage the environment. Existing water flow velocity measuring instruments in contact with river water include propeller type and rotary cup type according to the difference of water velocity sensors, but the mainstream is still the propeller type. The physical principle of the propeller type flow rate sensor is: the water pushes the propeller blades to rotate, and the rotation of the propeller blades drives the rotor to rotate through the connection mechanism, which drives the two magnets on the roto...

AI Technical Summary

Problems solved by technology

However, the flow rate sensors in the various contact-type water flow velocity measuring instruments in the prior art only have the function of automatically finding the direction of water flow in the horizontal direction, and do not have the function of automatically finding the direction of water flow in the vertical direction. Parallel, which reduces the force of the water flow to push the propeller at the front end of the flow velocity sensor to rotate, reducing the measurement accuracy of the flow velocity measurement

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