EDAN SONOTRAX Basic - Page 115

SONOTRAX(2009) Series Ultrasonic Pocket Doppler User Manual
107
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=44.5dB
@3MHz
50
44.5
T
6#
3#
-
-
0
57.1
112.3
52.44
6.61
108.2
B
a
43.6
13.5
-
-
75
44.5
T
6#
3#
-
-
0
57.1
108.4
52.28
6.34
107.9
B
a
43.6
13.5
-
-
100
44.5
T
6#
3#
-
-
0
57.1
113.8
54.56
6.39
107.9
B
a
43.6
13.5
-
-
200
44.5
T
6#
3#
-
-
0
57.1
112.2
54.82
6.22
103.3
B
a
43.6
13.5
-
-
2.38
A=42.0dB
@3MHz
50
42.0
T
6#
3#
-
-
0
57.1
109.0
53.46
6.18
105.2
B
a
43.6
13.5
-
-
75
42.0
T
6#
3#
-
-
0
57.1
113.8
52.43
6.73
105.8
B
a
43.6
13.5
-
-
100
42.0
T
6#
3#
-
-
0
57.1
110.4
54.35
6.16
105.2
B
a
43.6
13.5
-
-
200
42.0
T
6#
3#
-
-
0
57.1
112.7
54.46
6.32
105.4
B
a
43.6
13.5
-
-
Doppler Frequency (Hz)
500
Velocity of Target
(cm/s)
12.5
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