Ridley and Dougan have also utilized advanced sensor technology in the redesign of remote infrared analysis systems (also originally developed by Syncrude) that are mounted on conveyor belts at the mine sites to give operators an estimate of bitumen content of the ore. This allows them to adjust the amount of chemicals and water added downstream according to the quality of the raw material detected. 

A fourth innovation is a froth/middlings interface measurement system that indicates the position of the “froth” – a sticky mixture of bitumen, water and solids – in the primary separation vessel. The level of froth must remain constant to extract the optimum amount of bitumen. Previously, the operator had to observe the froth/middlings interface through a glass window and correct the level measurement manually. The new technology uses video cameras and image processing algorithms to automatically measure and control the froth level. 

Ridley and Dougan’s work has already provided economic returns from reduced oil losses and improved product quality. Their sensors are now being adopted throughout the oil sand industry.