EDAN SD3 PRO - Appendix 6 Overall Sensitivity

SD3 Series Ultrasonic Pocket Doppler User Manual Overall Sensitivity
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Appendix 6 Overall Sensitivity
Diameter of
Target
Reflector(mm)
Distance
(d)(mm)
A(dB)
Two-way Attenuation
B=∑B
a
+B
w
V
S
(r.m.s)
mV
V
n
(r.m.s)
mV
 
 









...
...
log20
10
smrV
smrV
C
n
s
dB
Overall Sensitivity
(S=A(d)+B+C)
dB
∑B (T: ultrasonic attenuation
phantom No. B
a
:dB)
B
w
(dB)
B
(dB)
2.38@2 MHz
50
32.5
T
6#
6#
5#
1#
0
66.1
204.2
100.4
6.17
104.77
B
a
66.1
75
36.0
T
6#
6#
5#
1#
0
66.1
174.8
85.4
6.22
108.32
B
a
66.1
100
38.5
T
6#
6#
5#
1#
0
66.1
174.2
87.5
5.98
110.58
B
a
66.1
200
45.5
T
6#
6#
4#
-
0
59.9
300.2
142.3
6.48
110.88
B
a
59.9
Doppler Frequency (Hz)
299
Velocity of Target
(cm/s)
12.5
2.38@3 MHz
50
32.5
T
6#
6#
-
-
0
87.3
94.5
49.7
5.58
125.38
B
a
87.3
75
36.0
T
6#
6#
-
-
0
87.3
90.3
49.8
5.17
128.47
B
a
87.3
100
38.5
T
6#
6#
-
-
0
87.3
105.2
51.5
6.04
131.84
B
a
87.3
200
45.5
T
6#
6#
-
-
0
87.3
85.5
52.5
4.24
136.00
B
a
87.3
Doppler Frequency (Hz)
410
Velocity of Target
(cm/s)
12.5