The electromagnetic fields of parallel pipes can add up to a total field. They then form a common maximum.
If two maxima are formed next to each other, this is an indication that the signal has jumped to another pipe. One way to differentiate between the wires is to measure the current at the location of both maxima.
The current in the transmitted line is greater than the current in a pipe to which the signal has been skipped.
To avoid overlapping the field, you can proceed as follows:
1. Connect the generator via auxiliary cable to the pipe to be located (conductor loop). So the signal doesn't flow back over the earth and probably doesn't jump over to other wires as easily.
2. If it is not possible to connect via a conductor loop, select a transmission frequency as low as possible to reduce the probability of switching to other pipes.
3. The UT 9200 offers the “current direction detection” function. With this function, directly connected pipes can be distinguished from those to which the signal has been skipped.
