User guide
156
(a)This index is not required for this operating mode; value is <1.
(b)This transducer is not intended for transcranial or neonatal cephalic uses.
# No data are reported for this operating condition since the global maximum index value is not reported for the reason
listed. (Reference Global Maximum Index Value line.)
— Data are not applicable for this transducer/mode.
Table 33: Transducer Model:
P21x
Operating Mode:
MMode
Index Label M.I.
TIS TIB
TIC
Scan
Non-scan
Non-scan
A
aprt
1A
aprt
>1
Global Maximum Index Value 1.5 — (a) — 1.4 1.1
Associated Acoustic
Parameter
p
r.3
(MPa) 2.10
W
0
(mW) —# 40.08 29.71
min of
[W
.3
(z
1
),I
TA.3
(z
1
)]
(mW)
—
z
1
(cm) —
z
bp
(cm) —
z
sp
(cm) 3.645 4.9
d
eq
(z
sp
) (cm) 0.343
f
c
(MHz) 1.93 — # — 1.93 1.94
Dim of A
aprt
X(cm) — # — 1.835 1.9
Y(cm)
—# — 1.31.3
Other Information
PD (μsec) 0.904
PRF (Hz) 800
p
r
@PII
max
(MPa) 2.679
d
eq
@Pll
max
(cm) 0.341
Focal Length FL
x
(cm) —# — 18.46
FL
y
(cm) —# — 5.5
I
PA.3
@MI
max
(W/cm
2
)
237.4
Operating
Control
Conditions
Control 1: Exam Type Abd/
OB
Abd/OB Abd
Control 2: Optimization Any Gen/Res/
Pen
Pen
Control 3: Depth 7.5 cm 10/13 cm 32 cm
Control 4: THI On On Off
Control 5: MB On or
Off
On or Off On or
Off










