Patent ID: 7526966

Claim:
An apparatus for determining a characteristic of an aerated fluid flowing within a pipe, the device comprising: at least one first sensing device associated with the pipe to sense a low-frequency component and a high-frequency component of the aerated fluid flow, wherein said at least one first sensing device generates first sensor data responsive to said low-frequency component of the aerated fluid and second sensor data responsive to said high-frequency component of the aerated fluid flow; at least one second sensing device associated with the pipe to sense predetermined parameters of the aerated fluid flow and to generate third sensor data responsive to said predetermined parameters of the aerated fluid flow; and a processing device, wherein said processing device is communicated with said at least one first sensing device and said at least one second sensing device to receive and process said first sensor data, said second sensor data and said third sensor data to generate fluid data responsive to a characteristic of the aerated fluid flow.