Development and manufacturing of non-
destructive testing units and system
Ultrasonic Flaw Detector NOVOTEST UD2301
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7.3.3. Setting the scanning delay
To adjust duration of delay in parameter group "Main" set the
required value of the parameter "DELAY".
7.3.4. Setting cut-off of signal
In some cases it is convenient to use cut-off signal on the vertical
axis to enhance the perceptual quality of the signal. This method
allows to remove from the screen of the flaw detector noise, as well
as other small amplitude signals, preventing the identification of
useful signals.
To set the cut-off signal, in parameter group "Main" set the required
value of the "REJECT". The cut-off is a percentage of the screen
height.
7.3.5. Envelope of the signal mode
In some cases it may be necessary to detect the maximum of signal,
and get an envelope signal during scanning of reflectors.
To activate the envelope in group settings "Functions" set the
required value of the "PEAK": "ON" or "OFF".
7.4.
Setting of the flaw detector for measurements
7.4.1. Basic settings of control areas (Gates)
Flaw detector has two independent gates - A and B. Configure of
gates is basic operation, that allow configure the flaw detector for
measuring the signal amplitudes, the depth of the reflector,
thickness measurements etc.
For each of the control gates can be set independently:
- The level of the gate as a percentage of the screen height of the
flaw detector;
- The start coordinates of the control gate;
- The width of the control gate (gate length);
- Signal (audio alarm when signal cross the control gate).
