Quality Assurance
LOGIQ V2/LOGIQ V1
–
User Guide
3-61
Direction 5610736-100
Rev. 9
Lateral distance measurements
Description
Lateral measurements are distance measurements obtained
perpendicular to the axis of the sound beam. See Figure 3-35
for more information.
Benefit
The purpose is the same as vertical measurements.
Precisely-spaced horizontal pin targets are scanned and results
compared to the known distance in the phantom.
Method
Lateral distance should be measured in the near, mid and far
fields as well as in zoom. If necessary, different depths of fields
of view can be tested.
Procedure
To measure lateral distance:
1. Scan a test phantom with precisely-spaced horizontal pin
targets. Adjust all scan controls, as necessary, for the best
image of the pin targets from side to side.
2. Press
Freeze
to stop image acquisition and perform a
standard distance measurement between the pins at
different points in the image. Record all images for
archiving.
3. Scan the horizontal pins in zoom or at different depth/scale
factors.
4. Press
Freeze
to stop image acquisition; repeat the distance
measurements between pins and record the images for
archiving.
5. Document the measurements for reference and future
comparison.
Contact a Service Engineer if horizontal measurements differ by
more than 5% of that depth, whichever is greater.
Содержание LOGIQ V2
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