User's Manual

Chapter 6: Safety 127
Safety
(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 27: Transducer Model: P21x/5-1 Operating Mode: PW Doppler
Index Label M.I.
TIS TIB
TIC
Scan
Non-scan
Non-scan
A
aprt
≤1A
aprt
>1
Global Maximum Index Value 1.2 — — 1.3 4.0 2.7
Associated Acoustic
Parameter
p
r.3
(MPa)
1.844
W
0
(mW)
—— 95.55 95.55
min of [W
.3
(z
1
),I
TA.3
(z
1
)] (mW)
120.13
z
1
(cm)
3.1
z
bp
(cm)
2.66
z
sp
(cm)
3.718
0.6
d
eq
(z
sp
)(cm)
0.49
f
c
(MHz)
2.16 — — 2.22 2.23 2.23
Dim of A
aprt
X(cm) — — 1.9 0.459 0.459
Y(cm)
— — 1.3 1.3 1.3
Other Information
PD (μsec) 1.21
PRF (Hz) 1562.5
p
r
@PII
max
(MPa)
2.432
d
eq
@Pll
max
(cm)
0.49
Focal Length FL
x
(cm)
——13.84 1.55
FL
y
(cm)
—— 5.5 5.5
I
PA.3
@MI
max
(W/cm
2
)
187.5
Operating
Control
Conditions
Control 1: Exam Type Card Card TCD TCD
Control 2: Sample Volume 1mm 3mm 14mm 14mm
Control 3: PRF 1563 3906 12500 12500
Control 4: Sample Volume Position Zone 1 Zone 4 Zone 0 Zone 0