The specialized "Resonance flaw detector" application is intended to defect delaminations in the composites and disbonds in the workpieces bonded of metallic materials. The program operates in the frequency range of 0,2…1,0 MHz.
There is a possibility of the automated and manual device setting. Two amplitude-frequency characteristics (AFR) must be accepted for the program setting: AFR for the defect-free area of a testing specimen and AFR for the defected area. Proceeding from this data, the program automatically detects the best frequency for the defect detection. It also displays both accepted AFRs. There is also the possibility to manually set the required parameters: the generator frequency, number of the frequency repetitions, start and width of the time interval of analyzed signal. During the manual setting of frequency or time interval of the analyzed signal, the A-scan (fig.1) is displayed.
fig.1
A defect-free zone is programmably set up by a violet ellipse. Its location is set so that the cursor lies inside it when the probe is placed on any defect-free area of a testing specimen. The coordinates and form of the ellipse are set up by indication of the rotation angle, shifting along the axis inclined at this angle, ellipse width and thickness values. The sensitivity can be also set up within wide limits (fig.2).
fig.2
Performed settings are saved in the device archive; it allows to start working almost instantaneously . After loading of the settings, no additional operations are required; it is sufficient to move simply the probe on the testing surface and take a look at the screen (fig.3).
fig.3
Functional data:
Automated setting according to AFR for defect-free and defected area
Manual correction of the settings
Defect-free zone, having an ellipse form
Sensitivity setting in a wide range
Archive availability
Quick setting of the operating mode
The flaw detector Tomographic UD4-T is recommended for use in the aircraft industry.
