Measurement of velocity fields in ball mills
(1996) Experimental Mechanics : an international journal of the Society for Experimental Mechanics — Vol. 36, n° 3, p. 251-257 (1996)
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- Abstract
- This paper describes a computer vision technique used in measuring the velocity field related to the motion of balls in a ball mill. A camera combined with two color flashes facing an experimental ball mill is used to take pairs of pictures by triggering the flashes in sequence with a time interval Delta t. In order to ensure consistency, the pictures are of different colors and in a single frame. The ball positions in each image are detected by image-processing techniques, and the velocity is then the displacement of each ball between two successive images divided by Delta t. The measurement error is estimated by measuring the displacements from a pair of images when the balls remain stationary.
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Citations
Kung, LS., & Samin, J.-C. (1996). Measurement of velocity fields in ball mills. Experimental Mechanics : an international journal of the Society for Experimental Mechanics, 36(3), 251-257. https://doi.org/10.1007/BF02318015 (Original work published 1996)