Chapter 3 25
Touch
on
Gain
to change the gain level (signal sensitivity). The
higher the gain the more sensitive the unit will be making it easier to
measure lower thickness values. But excessive gain can also cause
erroneous measurements.
The gain is typically adjusted when changing transducers.
Touch the
-
keys to adjust the gain
value and touch
to save and exit.
Touch
to exit without making changes.
Figure 3.18: Adjust gain level
Touch
on
Pulser
to adjust the transducer pulser excitation level.
Touch the
-
keys to adjust the
tension and touch
to save and exit. To
exit without changes touch
.
Figure 3.19: Transducer pulser excitation tension editor screen
Considerations when adjusting the pulser excitation tension:
Higher excitation levels mean that more energy is applied to the
emission crystal in the transducer which allows for better penetration
in high attenuation and large or thick materials.
Содержание QSV-B
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