EDAN Sonotrax Pro User Manual page 115

Diameter of
Distance
Target Reflector
A(dB)
(mm)
(d)(mm)
50 44.5
75 44.5
1.58
A=44.5dB
@3MHz
100 44.5
200 44.5
50 42.0
75 42.0
2.38
A=42.0dB
@3MHz
100 42.0
200 42.0
Doppler Frequency (Hz)
SONOTRAX(2009) Series Ultrasonic Pocket Doppler User Manual
Two-way Attenuation
B=∑B
+B
a w
∑B (T: ultrasonic attenuation
phantom No. B :dB)
a
T 6# 3# - -
B 43.6 13.5 - -
a
T 6# 3# - -
B 43.6 13.5 - -
a
T 6# 3# - -
B 43.6 13.5 - -
a
T 6# 3# - -
B 43.6 13.5 - -
a
T 6# 3# - -
B 43.6 13.5 - -
a
T 6# 3# - -
B 43.6 13.5 - -
a
T 6# 3# - -
B 43.6 13.5 - -
a
T 6# 3# - -
B 43.6 13.5 - -
a
500
V (r.m.s) V
S n
B B mV
w
(dB) (dB)
0 57.1 112.3 52.44
0 57.1 108.4 52.28
0 57.1 113.8 54.56
0 57.1 112.2 54.82
0 57.1 109.0 53.46
0 57.1 113.8 52.43
0 57.1 110.4 54.35
0 57.1 112.7 54.46
Velocity of Target
(cm/s)
107
 
 
V r . m . . s
   

s
C 20 log
(r.m.s)  
10
 V r . m . . s 
mV n
dB
6.61
6.34
6.39
6.22
6.18
6.73
6.16
6.32
12.5
Overall
Sensitivity
(S=A(d)+B+C)
dB
108.2
107.9
107.9
103.3
105.2
105.8
105.2
105.4