| 摘要 |
The method of determining a pipe wall condition and/or pipe valve condition within a pipe system comprises: introducing (510) a pressure signal at a frequency greater than 30 Hz to fluid at a first connection point at a local station within the pipe system; measuring propagation of the pressure signal through the fluid within the pipe system at a second connection point at a remote station within the pipe system, and/or measuring reflection of the pressure signal through the fluid within the pipe system at the first connection point at the local station within the pipe system; and determining a pipe wall condition (540) and/or pipe valve condition at least partly from the propagated and/or reflected pressure signal |
