Appendix F - Acoustic Output Reporting for Track 3
Acoustic Output Tables for Echo Transducers
Terason t3000 / Echo Ultrasound System User Guide
396
Acoustic Output Reporting Table for Track 3 for the 7L3V Transducer
(Terason Echo Ultrasound System in Color Flow Mode)
Note: 1.
Maximum free-air lens surface temperature for this mode is 42.8°C, assuming an ambient air
temperature of 23.0°C.
2.
Information need not be provided for any formulation of
TIS
not yielding the maximum value of
TIS
for that mode.
3.
Information need not be provided regarding
TIC
for any transducer assembly not intended for
transcranial or neonatal cephalic uses.
4.
Information on MI and TI need not be provided if the equipment meets both exemption clauses
given in 51.2 aa) and 51.2 dd).
MI
TIS
TIB
TIC
Index Label
Scan
Non- scan
Non-
scan
A
apr
1cm
2
A
aprt
>1cm
2
Maximum Index Value
0.98
2.14
-
-
-
3.75
USFDA Track
3
IEC
Associated
Acoustic
Parameter
p
r.3
p
ra
(MPa)
1.96
W
o
P
(mW)
112.8
7
-
-
87.99
min of [W
.3
(z
1
),
I
TA.3
(z
1
)]
Min of [P
(z
s
),
I
ta,
(z
s
)]
(mW)
-
z
1
z
s
(cm)
-
z
bp
z
bp
(cm)
-
z
sp
z
b
(cm)
2.47
-
d
eq
(z
sp
)
d
eq
(z
b
)
(cm)
-
f
c
f
awf
(MHz)
3.98
3.97
-
-
-
3.98
Dim of A
aprt
Dim of A
aprt
X (cm)
0.87
-
-
-
0.39
Y (cm)
0.70
-
-
-
0.70
PD
t
d
(µsec)
1.96
PRF
prr
(Hz)
7000
Other
pr@PIImax
p
r
at max. I
pi
(MPa)
2.69
Information
deq@PIImax
d
eq
at max I
pi
(cm)
-
Focal Length
FL
(cm)
1.50
-
-
0.80
I
PA.3
@MI
max
I
pa,
at max. MI (W/cm
2
) 169.79
Operating
Control
Conditions
Control 1
X
Control 2
X
Control 3
X
Control 4
