34
│ 3 Using the system
3.5.1.2 Correlation curve
The run time difference between the signals of the two transmit
-
ters is displayed in the correlation curve.
Fig. 22: Correlation curve with marker (red rectangle)
The area around the highest peak of the curve is marked with a
red rectangle. This marker indicates the calculated leak position.
If a correlation curve shows several significant peaks, a plausi
-
bility check should be carried out (section 3.6).
3.5.1.3 Quality of peak
The sharper or clearer the peak, the better the quality. The quality
can be improved by setting filters.
The quality of a peak is rated by dots. The more black dots, the
higher the quality.
Fig. 23: Quality of peak
Left image: Very high quality
Right image: Poor quality
Note:
The quality of a peak does not correlate to the accuracy of the
calculated leak position.
3.5.2
Selecting and adjusting filters
One filter is always set in the frequency graph when the
Filter
menu is opened. Whether an automatically calculated filter or a
manually set filter is applied first depends on the starting point.
Once the menu has been opened, you can switch between filters.
