A general approach to automatic measurements of water velocity

作者：Fu X Q; Liang X; Liu X; Liao W T

来源：Materialprufung, 2013, 55(7-8): 593-597.

Real-time measurement of river flow velocity below the ice in winter is a tough problem. An experimental apparatus of a new thrust flow transducer based on the properties of particle phase is proposed in this paper. The traction cable's pull force which is given by the floating ball in the fluid can be measured by the experimental apparatus. Then the force values of the rigid floating ball are used to calculate fluid thrust on the floating ball. Finally, the velocity can be evaluated by an empirical formula between the fluid velocity and fluid thrust on the floating ball. Such a new thrust flow transducer is simple and requires only low costs. It can not only be used for measuring the surface velocity of rivers, water channels, lakes, and oceans, but can also be used for automatic measuring the velocity of water including frazil slush which is found below the ice sheets of rivers, water channels, lakes, and oceans in freezing conditions.

• 出版日期2013