Youkey Q7 - Page 47

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Table 2 Image performance Indexes
Mode
Order
number
Project
Probe model
E10-4Ks
B/M
A
Probe nominal
frequency (MHz)
6.5
B
Deviation between
acoustic working
frequency and
nominal
frequency(%)
±15
C
Maximum detection
depth(mm)
≥60
D
lateral resolution
(mm)
≤2
(depth≤50)
E
Azimuthal
resolution (mm)
≤1
(depth≤60)
F
Fade zone(mm)
≤3
G
Slice
thickness(mm)
≤8
H
Transverse
geometric position
precision(%)
≤10
I
Longitudinal
geometric position
precision(%)
≤5
J
Perimeter and area
measurement
deviation(%)
±15
K
M mode time
display
deviation(%)
≤10
Color
L
Service frequency
（MHz）
6.0
6.5
M
Depth of
investigation (mm)
≥40
N
Relationship
between color
blood flow image
and gray-scale
image of the pipe in
which it is located
coincide
O
Blood flow
direction
requirement
It can be correctly identified and
there is no aliasing.