Ultrasonic flaw detector А1212 MASTER
Operation Manual
18
ACOUSTIC
CONTROL
SYSTEMS
2.3.1.1 Parameters of PT
In the figure 8 the screen of the instrument when setting the parameters of PT is shown.
Names of the parameters of PT and their permissible values are presented in the Table 6.
Parameter name
Value Description
Type of PT
single-crystal /
double-crystal
Selecting the type of PT being used:
single-crystal;
double-crystal
Operating frequency, MHz 0.5 / 0.8 / 1.0 / 1.25 / 1.5 / 1.8 /
2.0 /2.25 /2.5 /3.5 / 4.0 / 5.0 /
6.0 / 7.5 / 10.0 / 15.0
Frequency of the PT shall be selected depending on the proper-
ties of the material
Angle of incident, ˚
from 0.0 to 90.0 with step 0.5
Setting an angle of incident of the PT.
If zero value is set, then the THICKNESS (section 0) parameter
value of the tested object will be automatically set into OFF state.
Press the
key to start calibration with the V2/25 sample
Delay, µs from 0.00 to 100.00 with
step 0.01
Setting the delay value in the PT’s prism
X-value, mm from 0.0 to 50.0 with step 0.1 Setting an X-value of the PT
2
Table 6
Automatic calibration of the angle beam PT
A refractive prism is being deteriorated while the angle beam transducer is in operation. Consequently, the angle of incident
and signal delay in the PT’s prism change. An automatic calibration procedure with the V2/25 sample is provided for on-line
correction of the angle of incident.
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