Measurement 8-5
8.4 Measurement
Accuracy
Table 1 Error of 2D Images
Parameter
Value Range
Error
Distance
Full screen
Within ±2%
Area
Full screen
Within ±6%
Circ
Full screen
Within ±7%
Angle
Full screen
Within ±3%.
Volume
Full screen
Within ±7 %
Table 2 iScape Measurements
Parameter
Probe Type
Error
Distance
Full screen
Within ±5 % (L14-6NE, L12-3E, P4-2,
D7-2E, 3C5A, 7L4A probe)
Full screen
Within ±10 % (V11-3 probe)
Table 3 Time/Motion Measurements
Parameter
Value Range
Error
Distance
Full screen
Within ±3 %
Time
Timeline Display
Within ±2%
Heart rate
Timeline Display
Within ±3%
Velocity (PW
mode)
10-200cm/s: (for L14-
6NE, 7L4A)
10-300cm/s: (for P4-2,
D7-2E, V11-3, 3C5A)
When angle
≤
60º,
≤
5%.
Velocity (CW
mode)
10-300cm/s (for P4-2)
When angle
≤
60º,
≤
5%. (not including pencil
probe)
Table 3 Doppler Velocity Measurements
Parameter
Value Range
Velocity (PW mode)
Min.
≤
0.10cm/s, Max.
≥
462cm/s
Velocity (CW mode)
Min.
≤
0.06cm/s, Max.
≥
3080m/s
Velocity (Color mode)
Min.
≤
1cm/s, Max..
≥
239.5cm/s
NOTE:
Within the selected field range, the measurement accuracy is ensured within
the range mentioned above. The accuracy specifications are performance in
the worst conditions, or based on the real test for the system, regardless of
acoustic speed error.
