ZS3 Service Manual Page 179 of 295
Performance Test
Test Procedure
Resolution
Detection depth
Geometric Position
Accuracy
Blackout area test
Record the exam
images
Test Content
Requirements:
1. Display: set the contrast and brightness at the clinical application value (or the
default status)
2. Operation environment: dark room, simulating the clinical application environment.
3. Scanning techniques: put the probe on the acoustic window of the phantom, without
spacing or pressing.
The phantom images here are for reference only.
Refer to "Appendix A Phantom Usage Illustration". Phantom
KS107BD is low frequency phantom and used when Probe focus
frequency is less than 4MHZ; Phantom KS107BG is high frequency
phantom and used when Probe focus frequency is more than
5MHZ.
Other quality phantom, such as Gammex 403 GS LE Precision
Multi-Purpose Phantom can also be used. Refer to the phantom
user manual for details.
Resolution
Transverse resolution
Test Steps:
1. Cover the scan surface of the phantom with water or ultrasound gel. Gently contact
the probe lense with the scan surface.
2. Scan the phantom to display the transverse resolution testing targets in the middle
of the image.
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