AL
• Diameter: diameter of a circle that is approximately the size of the grain
• Maximum length across the grain
• Maximum length/breadth: ratio of the maximum length divided by the breadth
• Circularity: degree to which the shape of the grain is approximated by a circle.
Conclusion
Recently, more than 6000 micro-grains were separated in an overnight run using the au- tomated micro-grain separation system, with accuracy of approximately 90%. This combina- tion of a software-driven micromanipulator with image-recognition algorithms provides a powerful tool for the separation of micro-grains in mixed solid matrices.
A video on the micro-support system for au- tomated grain separation can be seen here:
https://goo.gl/iAjooP
Figure 2 – Display of WinROOF software illustrating tiled images and grains to be separated.
Steven M. Barnett is principal, Barnett Techni- cal Services, 5050 Laguna Blvd., Ste. 112-620, Elk Grove, Calif. 95758, U.S.A.; e-mail:
steve.barnett@
barnett-technical.com;
www.barnett-technical.
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APRIL 2016
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