A machine vision particle image velocimetry system for themonitoring opaque slurry motion

摘要

The authors describe the application of a machine vision method tothe monitoring of surface flow measurement. A white-light stroboscopicillumination was used to enable electronic, multiple-image capture ofslurry surface behavior. Techniques for feature tracking are describedand illustrated using drilling mud as the target fluid. In industrialapplications the fluids are frequency opaque so that internalmeasurements by this method are not possible. Bulk flow quantities andinternal velocities can be obtained by applying a transformationrepresenting the relationship between the flow in a channel, surfacevelocities channel geometrical shape, and physical properties of fluid.In the present case, a channel with a square cross section was used toobtain this relationship