EDAN F9 Express - Page 196

F9, F9 Express Fetal & Maternal Monitor User Manual Ultrasound Intensity and Safety
- 185 -
Operating Mode: PW mode
Working Frequency: 1.0MHz
Acoustic Output
MI
I
SPTA.3
(mW/cm
2
)
I
SPPA.3
(W/cm
2
)
Global Maximum Value
0.017
1.66
0.0092
Associated
Acoustic
Parameter
p
r.3
(MPa)
0.017
W
0
(mW)
9.69
9.69
f
c
(MHz)
1.00
1.00
1.00
z
sp
(cm)
6.55
6.55
6.55
Beam
dimensions
x
-6
(cm)
0.48
0.48
y
-6
(cm)
0.56
0.56
PD (usec)
90.07
90.07
PRF (Hz)
2000.00
2000.00
EBD
Az. (cm)
Φ3.46
Ele. (cm)
Φ3.46
Operating
Control
Conditions
Focus(mm)
Fixed
Depth(mm)
Fixed
Frequency(MHz)
1.00
A4.6.2.2 7-Crystal Wafer Transducer
Acoustic output reporting table for IEC60601-2-37
(IEC60601-2-37, Edition 2.1, 2015-06, table 201.103)
Operating Mode: PW mode
Working Frequency: 1.0MHz
Index label
MI
TIS
TIB
TIC
At
surface
Below
surface
At
surface
Below
surface
Maximum index value
0.030
0.050
0.020
N/A
Index component value
N/A
0.050
N/A
0.020
Acoustic
Parameters
p
r.
α
at z
MI
(MPa)
0.030
P (mW)
9.83
9.83
N/A
P
1x1
(mW)
N/A
N/A
z
s
(cm)
1.49
z
b
(cm)
1.49
z
MI
(cm)
1.49
z
PII.
α
(cm)
1.49
f
awf
(MHz)
1.00
1.00
1.00
N/A
Other
Information
prr (Hz)
2000.00
srr (Hz)
N/A
n
pps
N/A
I
pa.
α
at z
PII.
α
(W/cm
2
)
0.020
I
spta.
α
at z
PII.
α
or z
SII.
α
(mW/cm
2
)
3.17
I
spta
at z
PII
or z
SII
(mW/cm
2
)
3.59