Dakota Ultrasonics PVX - Manual (Page 51)

PVX Precision Visual Thickness Gauge
47
E) Echo Signal – Graphical full waveform representation of the return echo
displayed as an amplitude (vertical or “Y” axis) plotted against time (horizontal or
“X” axis), this time is then converted to a physical measurement.
F) Measurement Labels – The measurement labels are calculated and displayed
according to where the left side of the display has been set (Delay), and the
overall viewable area (Width) of the display. Note: The gray hash marks break
the display up into 5 segments, or quadrants. The measurement labels
correspond to the measurement at each hash mark.
G) Units Label - Displays the current units of measurement (inches or millimeters).
H) Hot Menus - Each of the fields located under the waveform display are called the
Hot Menu Fields. These fields allow quick control of some of the fine
adjustments needed to control the display settings, measurement modes, and grid
memory control. All of these fields can be adjusted without having to activate the
tabbed menu items and searching through a variety of menus to make
adjustments.
B-Scan View
B-Scan
The B-Scan displays a time based cross section view of test material. This view is
commonly used to display the contour of the blind, or underside, surface of the
material being tested. It is very similar to a fish finder. If a flaw is located during a
scan, the B-Scan will draw the flaw on the screen. The solid black rectangle in the
diagram at location E represents the cross section, or side view of the material. You
will notice that the overall thickness of the material is .500”, and the display range is
0.00” to 1.00” respectively. The B-Scan view draws at a rate of 15 seconds per