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Instructions For Use
EN
Acoustic Output
The ultrasound transducer used with the Sonicaid Team3 fetal monitors has a single mode of operation, with
fixed acoustic output parameters that are not user adjustable.
Acoustic Output Reporting Table for Track 1 – Non-Auto-scanning Mode
Sonicaid Team3
Operating Mode: PWD
Application(s): Fetal Monitoring
Acoustic Output
MI
I
SPTA.3
(mW/cm
2
)
I
SPPA.3
(mW/cm
2
)
Global Maximum Value*
0.013
1.2 (Note 1)
5.8 (Note 1)
Associated
Acoustic
Parameters
Pr.3 (MPa)
0.013
Wo total (mW)
2.5mW
2.5mW
fc (MHz)
1.0
1.0
1.0
Z
sp
(cm)
2.4
2.4
2.4
Beam Dimensions x
-6
(cm)
0.066
0.066
y
-6
(cm)
0.067
0.067
PD (µS)
70
70
PRF (Hz)
3000
3000
Overall EBD (cm2)
(all eight crystals)
7.95
Definition of Terms
I
SPTA.3
The de-rated spatial peak temporal average intensity
I
SPPA.3
The de-rated spatial peak pulse average intensity
I
SATA
The spatial average temporal average intensity
MI
The mechanical index
Pr.3
The de-rated peak negative pressure
Wo
The ultrasonic power
fc
The acoustic centre frequency
Z
sp
The axial distance at which the reported parameter is measured
X
-6
Y
-6
respectively the in-plane (azimuth) and out-of-plane (elevation) -6dB dimensions in the x-y plane where
Zsp is found
PD
Pulse duration
PRF
Pulse repetition frequency
EBD
Entrance beam dimensions for the azimuth and elevation planes