Part II General Information
Function and Performance Check 230
Test procedure:
1. Place the probe head gently on the acoustic window of the phantom which is covered by water or
medical ultrasonic couplant, and make sure the transverse resolution targets are displayed in the
center of the image.
2. Focus to the transverse resolution target group.
3. Adjust the gain, dynamic range, TGC etc, make sure only the target line is displayed clearly on the
image with no tissue image in the background.
4. Read the separation between two target points that can be distinguished clearly, while keeping the
transverse target group horizontal.
5. Repeat upper steps at other depth.
Image effect is show in the figure below:
6.5.2.2 Axial resolution
Test procedure:
1. Place the probe head gently on the acoustic window of the phantom which is covered by water or
medical ultrasonic couplant, and make sure the axial resolution targets are displayed in the center
of the image.
2. Focus to the axial resolution target group.
3. Adjust the gain, dynamic range, TGC etc, make sure only the target line is displayed clearly on the
image with no tissue image in the background.
4. Read the distance between two target points that can be separated clearly.
5. Repeat upper steps at other depth.
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