EDAN SONOTRAX II Pro - Appendix 5 Overall Sensitivity

SONOTRAX(2009) Series Ultrasonic Pocket Doppler User Manual
106
Appendix 5 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)
1.58
A=45.7dB@2MHz
50
45.7
T
6#
6#
3#
-
0
57.5
72.15
34.32
6.45
109.6
B
a
24.9
24.9
7.7
-
75
45.7
T
6#
6#
2#
-
0
55.3
70.35
34.83
6.10
107.1
B
a
24.9
24.9
5.5
-
100
45.7
T
6#
6#
1#
-
0
53.5
72.62
35.64
6.30
105.5
B
a
24.9
24.9
3.7
-
200
45.7
T
6#
6#
-
-
0
49.8
75.47
35.86
6.24
101.7
B
a
24.9
24.9
-
-
2.38
A=43.2dB@2MHz
50
43.2
T
6#
6#
2#
1#
0
59.0
72.36
34.38
6.46
108.6
B
a
24.9
24.9
5.5
3.7
75
43.2
T
6#
6#
3#
-
0
57.5
74.31
34.83
6.58
107.2
B
a
24.9
24.9
7.7
-
100
43.2
T
6#
6#
2#
-
0
55.3
75.26
35.62
6.49
104.9
B
a
24.9
24.9
5.5
-
200
43.2
T
6#
6#
1#
-
0
53.5
75.42
35.83
6.45
103.2
B
a
24.9
24.9
3.7
-
Doppler Frequency (Hz)
333
Velocity of Target
(cm/s)
12.5
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