7 – System Specifications
DPN 402197 Issue 7.1
© Teledyne Limited
7- 4
Figure 7-2: Trials site
7.3.2 Results
7.3.2.1 Accuracy
below show details of the errors measured in the vertical and lateral offsets
between the target cable and the centre of the coil array.
NOTE
❐
Positive values show that the vertical range or the lateral offset indicated by
the 350 system was greater than the distance measured using a tape meas-
ure.
❐
The response of the 350 system proved to be symmetrical about its central
axis. The following tables therefore show only the response to the port side.
❐
Lateral offsets, vertical range, and errors are all listed in units of centimetres.
❐
‘o/s’ signifies that the 350 system switched to one-sided calculations – to
indicate which side the cable lay but not its offset distance.