An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe includes a single sheet of piezoelectric film material wrapped around at least a portion of the pipe and an array of sensors disposed at different locations on the film material. Each of the sensors provides...http://www.google.ca/patents/US7882750?utm_source=gb-gplus-sharePatent US7882750 - Method and apparatus for measuring parameters of a fluid flowing within a pipe using a configurable array of sensors
