1. Measuring fluid and slurry density and solids concentration non-invasively
2. Flotation Froth Phase Bubble Size Measurement
3. Monitoring of froth stability using electrical impedance spectroscopy
4. Huls, B.J., Gornez, C.O., Uribe-Salas, A., and ve Finch, J.A., 1990. Level detection in flotation columns at falcon bridge. Proceedings of the Mineral and Metallurgical Processing Symposium, Society for Mining, Metallurgy and Exploration (SME) Meeting. Control' 90, Salt Lake City, Utah, USA, p.173-177.
5. Kosick, G.A. and Dobby, G.S., 1990. Advanced control for column flotation. Proceedings of Canadian Metallurgical Processors, Annual Meeting. Ottawa, Canada.