SD5/SD6 Ultrasonic TableTop Doppler User Manual Overall Sensitivity
- 46 -
A4.4 Overall Sensitivity of SD6 (3MHz Wireless Probe)
Diameter of
Target
Reflector
(mm)
Distance
( )
=
...
...
log20
10
smrV
smrV
C
n
s
dB
Overall Sensitivity
(S=A(d)+B+C)
dB
∑B
(T: ultrasonic attenuation
phantom No. B
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
6#5#3#1#
0 86.0 38.4 18.59 6.30 136.70
B
6#4#3#
0 75.1 45.32 19.96 7.12 129.12
B
6#4#3#
0 79.4 40.2 19.36 6.35 138.65
B
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
6#5#4#
0 83.8 38.1 19.26 5.93 132.23
B
6#4#3#
0 75.1 45.61 18.74 7.73 127.83
B
6#4#3#
0 75.1 47.56 19.47 7.76 133.86
B
75.1
Doppler Frequency (Hz) 377
Velocity of Target
(cm/s)
10