Waygate Technologies Krautkramer USM Go, Руководство по эксплуатации

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5 Operation General setup
5-82 Rev. 10 (06/2021) USM Go
Backwall echo attenuation (BEA)
You can use the function BEA ( B ackwall E cho A ttenu-
ation) to set a separate gain for the range of gate B. This
gain is independent of the gain for the rest of the test
range.
The backwall echo attenuation therefore enables a se-
lective attenuation or peaking of the echoes in the
gate B.
A typical application case for this is the testing of forg-
ings. In this application case, the gain is reduced in
gate B until the backwall echo is completely displayed in
the A-scan. The backwall echo can then be selectively
integrated into the flaw evaluation.
However, the backwall echo attenuation also allows to
systematically increase the gain. In this way, you can,
for example, only increase the gain within the flaw ex-
pectancy range in order to peak the echo in this range.
– Switch to the second operating level.
– Select the function group CONFIG3 .
– Select the function BEA and press a function key to
turn on the backwall echo attenuation.
– Switch to the function BW GAIN .
– Press the function keys to select the required gain
value.