Patent ID: 7819022

Claim:
A method to register a flowing medium's characteristic features or properties, where the flowing medium being intended to pass through at least one flow conditioner installed in a pipe system, said flow conditioner having at least one flow restriction which upon said passing of the flowing medium through the restriction is configured to release, for signal processing, flow related acoustic signal energy being representative of said characteristic features or properties, and detecting said acoustic signal energy for signal processing and analysis, the method comprising: installing said flow conditioner in or as a structural part of the pipe system so that it is acoustically isolated from upstream and downstream sections or constructions of the pipe system, and detecting and processing from the flow conditioner in said structural part the flow-related acoustic signal energy from said medium as it passes through the flow conditioner without influence from, any non-flow related disturbing signal effects present in said upstream and downstream sections or constructions of the pipe system.