You are asked to develop a technology for the determination of the temperature distribution of a fluid being processed on two rotating grooved rolls- free surface flow (continuous shear roll milling process). The fluid can decompose if its temperature exceeds 250 C. Select instrumentation to detect the temperature hot spots at the free surface of the fluid within a budget of $65,000 and suggest means for control of the temperature - what would be manipulated and how? Propose a control scheme and include all peripherals.