13
position
accuracy
21
Gain range
0
~
99db
22
Scan angle
≥53°
21
Grey scale
256
22
fps
≥12 frames per second
2.2 Performance Requirements
(1) A/B Ultrasound Performance
The nominal frequency of A-scan probe is 10MHz and the error range is±15%.
The nominal frequency of B-scan probe is 10MHz, and the error range is±15%.
The nominal frequency of the Pachymetry probe is 20MHz, and the error range
is±15%.
B-scan detection depth: 10M B-
mode ultrasound probe (≥50)
Lateral Resolution of B-scan: 10M B-
mode Ultrasound Probe ≤ 0.4mm
Axial resolution B-scan: 10M B-
mode probe≤0.2
Transverse Geometric Position Accuracy of B-scan: 10M B-
scan Probe ≤ 10%
Longitudinal Geometric Position Accuracy of B-scan: 10M B-
scan Probe≤ 5%
Blind zone of B-scan: 10M B-
scan probe≤4
The measuring range of the length of A-scan eye axis should not be less than 15 mm
to 35 mm.
The error of measuring the length of A-scan eye axis should be no more than 0.05
mm.
The measurement range of Pachymetry corneal thickness should not be less than
0.3 mm to 1.2 mm.
The measurement error of Pachymetry thickness should be no more than 0.05 mm.
A-scan Axis length measurements should show two significant digits after decimal
points, and Pachymetry corneal thickness measurements should show three significant
digits after decimal points.
A-scan has two measuring modes, manual and automatic. The error of the two
measuring modes is not more than 0.2 mm.
Содержание SK-3000A
Страница 12: ...11 1 12 Label This label information is stick on main body of Ophthalmic ultrasound ...
Страница 28: ...27 4 5 P scan Test Interface 1 Eye Switch left eye and right eye ...
Страница 30: ...29 4 6 B scan Test Interface 1 Eye Switch left eye and right eye ...
Страница 35: ...34 ...
Страница 41: ...40 2 Click Properties 3 Double click Internet protocol version 4 ICP IPv4 ...