Appendix F - Acoustic Output Reporting for Track 3
Acoustic Output Tables for Echo Transducers
Terason t3000 / Echo Ultrasound System User Guide
405
Acoustic Output Reporting Table for Track 3 for the 12HL7 Transducer
(Terason Echo Ultrasound System in Pulsed-Wave Doppler Mode)
Note: 1.
Maximum free air surface temperature of the lens is 36.4° C for this operating mode, 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
0.78
-
0.55
-
1.20
Note 3
USFDA Track
3
IEC
Associated
Acoustic
Parameter
p
r.3
p
ra
(MPa)
2.01
W
o
P
(mW)
-
15.91
12.08
-
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)
0.95
1.08
d
eq
(z
sp
)
d
eq
(z
b
)
(cm)
0.14
f
c
f
awf
(MHz)
6.68
-
6.68
-
6.02
-
Dim of A
aprt
Dim of A
aprt
X (cm)
-
0.74
-
0.46
-
Y (cm)
-
0.35
-
0.35
-
PD
t
d
(µsec)
3.88
PRF
prr
(Hz)
1000
Other
pr@PIImax
p
r
at max. I
pi
(MPa)
2.40
Information
deq@PIImax
d
eq
at max I
pi
(cm)
0.14
Focal Length
FL
(cm)
-
4.8
-
-
I
PA.3
@MI
max
I
pa,
at max. MI (W/cm
2
) 130.08
Operating
Control
Conditions
Control 1
X
Control 2
X
Control 3
X
Control 4
