Pinpointing

Technologies capable of pinpointing a leakage. The position needs to be determined so as to dig a hole just big enough to repair the damaged pipe.

Correlation

Correlation is also a technology to pinpoint a leakage, but this technology has been separated from pinpointing due to its significance. The underlying principle is to correlate two acoustic signals. As a result, the distance to the leakage spot is indicated where to find the leakage. Often the result of a correlation is double-checked with a pinpointing technology.

Prelocating

Prelocating is the step prior to pinpointing to identify the pipe section with the leakage.

Pipe Searching

If there is no map of the supply network, the location of the particular pipe needs to be determined first. There are several electric and acoustic procedures available to do so.

Monitoring

Monitoring is the umbrella term for technologies which permanently record data. Data recording allows to compare the gathered and thus to receive very exact information on the current state of the supply network. If there is a leakage, further steps will be taken as described above.

PWG ll Pulse Wave Generator Finding Pipes Under Difficult Conditions - Brochure