Development and manufacturing of non-
destructive testing units and system
Ultrasonic Flaw Detector NOVOTEST UD2301
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Picture 10.4 Standard sample SO-3
9.5.
Measurement the velocity of ultrasonic vibrations in the
tested object
Measurement the velocity of ultrasound can be performed directly
on the tested object or with the samples made from the same
material.
Before the measurement of ultrasonic velocity in the material of the
tested object it is necessary to make setting of the transducers (set
the correct delay value in the prism and set the angle for the angle-
beam transducer) described above.
Select the place on the product (or on sample of the same material)
in which can be made thickness measurement of the sample using
appropriate transducer. Set the control gate, adjust the display the
thickness of tested object. Mechanically with satisfying accuracy
make measurement of real thickness at the point of control.
Measurement (setting) of the ultrasonic velocity in the material of
tested object (or a sample of similar material) is produced by
adjusting the value of the parameter "VELOCITY" in the "Main" to
align the measured values of the thickness of the object (sample)
with the real (obtained by measuring the mechanical method).
