Patent ID: 7363800

Claim:
An apparatus for measuring parameters of a mixture flowing in a pipe, the mixture having a plurality of components that includes at least two solids, a liquid, and a gas; the apparatus comprising: a first device configured to sense at least one parameter of the mixture indicative of a density of the mixture and provide a first signal indicative of the density; a second device configured to sense at least one parameter of the mixture indicative of a combined concentration of the at least two solids in the mixture and provide a second signal indicative of the combined concentration of the solids; a third device configured to sense at least one parameter of the mixture indicative of a concentration of the gas in the mixture and provide a third signal indicative of the concentration of the gas; and a signal processor that determines a concentration of each of the at least two solids and a concentration of the liquid in response to the first second and third signals, wherein the concentrations of each of the solids and liquid are a function of the density of each component of the mixture and sensitivity parameters.