Sonatest Wave - 8 Ultrasonic Parameters - Advanced Notions; 8.1 The A-Scan View; 8.1.2 A-Scan Zoom

Wave User Manual 43
Version 4
8 Ultrasonic Parameters – Advanced Notions
This section informs you about more advanced notions regarding Wave’s ultrasonic
parameters. It is assumed that the concepts in Section 6 have already been understood.
8.1 The A-Scan View
The A-Scan appearance and background can be adjusted in numerous ways. The
following table describes all the actions offered that can change the A-Scan.
Table 13 - A-Scan signal modification
Menu
Parameter
Possible values
Display
Line Appearance
Thin, Thick, Filled
Signal
Envelope
Off, Trail, Peak
Signal
Reset Envelope
No value – this is a direct action
Display
Trail Duration
0 to 60 seconds
Display
Trail Speed
Slow, Medium, Fast
Display
Rulers
None, Horizontal, Vertical, Both
Display
Ruler Mode
Distance, Time
Display
Overlay Mode
None, Line, Band
Display
Grid Type
None, Plain, Dash, Dot, Cross
Display
Grid Alignment
Aligned, Fixed
NOTE: The A-Scan grid can be aligned with the main tick mark of the
horizontal ruler. On the other hand, the grid can be fixed, displaying
the traditional 10 vertical lines.
View the following video for more details about the envelope.
View the following video for more details about grid types and
overlays.
8.1.1 Reference A-Scan
The reference A-Scan is a fixed A-Scan view of a signal of your choice to be displayed in
the A-Scan View background to be used as a reference signal.
Click on Signal menu and then on Ref. A-Scan to activate it.
8.1.2 A-Scan Zoom
It is possible to zoom an A-Scan in a couple of different ways. The first one requires having
a gate displayed then zooming over the region covered by the gate. This is accomplished