APPARATUS AND METHOD FOR ATTENUATING ACOUSTIC WAVES IN PROPAGATING WITHIN A PIPE WALL

摘要

A method and apparatus for damping an ultrasonic signal propagating in th e wall of a pipe (104), the apparatus including at least one damping structu re (132) for securing at least one sensor to the wall of the pipe, wherein t he at least one sensor includes a transmitter component (122) and a receiver component (124) for transmitting and receiving an ultrasonic signal, wherei n the at least one damping structure is associated with the outer wall of th e pipe for damping the ultrasonic signal propagating within the wall of the pipe and a processor that defines a convective ridge in the k-omega pl ane in response to the ultrasonic signals, and determines the slope of at le ast a portion of the convective ridge to determine the flow velocity of the fluid.