Fig. 10From: A theoretical model for capacitance measurement of liquid films in an annular flowCircular model: demonstration of finding depth resolution using a graph of ΔC against liquid depth for two example results. It can be seen from the water graph that the depth resolution decreases as the liquid layer increases (here from 0.2 to 0.1 mm). δd min is shown for the oil graph and δC = 0.1 pFBack to article page