EDAN SD6 - A4.4 Overall Sensitivity of SD6 (3 Mhz Wireless Probe)

SD5/SD6 Ultrasonic TableTop Doppler User Manual Overall Sensitivity
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A4.4 Overall Sensitivity of SD6 (3MHz Wireless Probe)
Diameter of
Target
Reflector
(mm)
Distance
(d)(mm)
Reflection
Loss A(d)
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 40.9
T
6#5#4#1#
0 90.3 39.57 18.31 6.69 137.89
B
a
90.3
75 44.4
T
6#5#3#1#
0 86.0 38.4 18.59 6.30 136.70
B
a
86.0
100 46.9
T
6#4#3#
0 75.1 45.32 19.96 7.12 129.12
B
a
75.1
200 52.9
T
6#4#3#
0 79.4 40.2 19.36 6.35 138.65
B
a
75.1
2.38
A=42.0dB@
3MHz
50 39.0
T
6#5#4#1#
0 90.3 40.48 18.43 6.83 136.13
B
a
90.3
75 42.5
T
6#5#4#
0 83.8 38.1 19.26 5.93 132.23
B
a
83.8
100 45.0
T
6#4#3#
0 75.1 45.61 18.74 7.73 127.83
B
a
75.1
200 51.0
T
6#4#3#
0 75.1 47.56 19.47 7.76 133.86
B
a
75.1
Doppler Frequency (Hz) 377
Velocity of Target
(cm/s)
10