Flaw Position Calculation With Angle-Beam Probes - GE USM 36 Series Technical Reference And Operating Manual

5 Operation
5.12 Flaw position calculation with
angle-beam probes
You will find the functions for setting the flaw position
calculation when using angle-beam probes in the func-
tion group AUTOCAL > TRIG on the first operating level
and in the function group EVAL, in the column TRIG on
the second operating level.
5-44

Flaw position calculation with angle-beam probes

– If necessary, switch to the second operating level.
– Select the function group EVAL.
In addition to the sound path S, the (reduced) projection
distance and the true depth of the flaw are calculated
automatically and indicated in the measurement line by
means of these functions.
● Projection distance PD
Distance from the probe beam index point to the po-
sition of the flaw, projected onto the surface.
Issue 2 (12/2013) USM 36