Patent ID: 7587948

Claim:
An apparatus for use in an industrial process for measuring a velocity of a fluid flowing in a pipe, said apparatus comprising: a probe portion disposed in said fluid flow, said probe portion including: a tube; and an array of at least two sensors attached to said tube and disposed at different axial locations along said tube, each of said sensors measuring inhomogeneous pressure disturbances at each of said respective axial locations, and each of said sensors providing a pressure signal; wherein the tube and the array of at least two sensors are operable to be disposed within the pipe, in the fluid flow; a signal processor, responsive to said pressure signals, which provides a velocity signal indicative of said velocity of said fluid in said pipe; and a controller that is operable to provide a control signal, in response to said velocity signal, to a flow device relating to the industrial process, which flow device controls the velocity of the fluid.