© 2015 Proceq SA
9
• OFF – No filter is applied. The raw signal is displayed.
• Normal – Applies a medium band filter to the received signal.
The received signal is saved post-filtering, so it is not possible to alter the
filter afterwards. Switching the filter off allows the raw data to be viewed.
Time Gain Compensation
When switched on amplifies signals that are further away from the trans-
ducer.
Area Scan
Raster X
: set the grid spacing for the X-axis.
Raster Y:
set the grid spacing for the Y-axis.
Measurement count X
: Set the number of measurements to be made
in the X-direction.
Measurement count Y:
Set the number of measurements to be made in
the Y-direction.
Colour Scheme
: Select the colour scheme (can be adjusted later in the
explorer).
Result:
Select the measurement parameter you wish to display.
Auto Color Range:
On or off. If not selected then the user may define
minimum and maximum settings for the colour range and these may also
be adjusted later in the explorer. The color scheme may also be inverted
by setting the maximum value lower than the minimum.
B-Scan
Distance between measurements
Set the spacing between measurements. For good resolution images,
a spacing of 1 cm is recommended. For a quicker initial scan a coarser
spacing may be used, e. g. 2.5 cm corresponding to the spacing markers
on the Pulse Echo Transducer. When searching for larger objects such as
delaminations or thickness variations, much coarser grid spacings may
be used, e. g. 10 cm and upwards.
2.5 cm
SAFT
When activated, applies a Synthetic Aperture Focusing Technique to the
raw data to produce a sharper image.
SAFT uses path length and positioning information to correct the image.
The quality of the final image is dependent on the spacing of the meas-
urements.
Envelope
When this setting is activated it uses an envelope of the A-Scan to gener-
ate the B-Scan image. This can also help to generate a clearer B-Scan
image.
Color Range and Color Scheme
Color range may be automatic or manual. When set to manual, the color
gain icon
9
appears on the measurement screen.
Four different color schemes may be chosen according to preference.
Original – Original signal is used to generate the B-Scan.
