Chison ECO 6 - Page 190

ECO 6 Digital Color Doppler Ultrasound System
177
Acoustic Output Table
System: ECO 6
Transducer Model: P3-A Operating Mode: B+C+CW
Index Label
MI
TIS
TIB
TIC
Scan
non-scan
non-scan
A
aprt
≤1
A
aprt
>1
Global Maximum Index Value
0.3
0.7
1.7
1.0
Associated
Acoustic
Parameter
p
r.3
p
r,α
(MPa)
0.42
W
o
P
(mW)
178.00
172.00
min of
[W
.3
(z
1
),
I
TA.3
(z
1
)]
min of
[Pα(Zs),Ita,α(Z
s)]
(mW)
79.00
z
1
Z
s
(cm)
5.4
z
bp
Z
bp
(cm)
2.0
z
sp
Z
b
(cm)
6.7
Z
@PII
.3max
Z at max I
pi α
(cm)
6.8
d
eq
(z
sp
)
d
eq
(Z
b
)
(cm)
0.80
f
c
f
awf
(MHz)
2.65
2.75
2.70
2.75
Dim of A
aprt
Dim of A
aprt
X (cm)
1.92
1.92
1.92
Y (cm)
1.58
1.58
1.58
Other
Informatio
n
PD
t
d
(µsec)
26.00
PRF
prr
(Hz)
0
p
r
@PII
max
p
r
at max I
pi
(MPa)
0.12
d
eq
@PII
max
d
eq
at max I
pi
(cm)
0.81
Focal Length
Focal Length
FL
x
(cm)
0.42
0.43
FLy (cm)
0.32
0.30
I
PA.3
@ MI
max
I
pi
at max MI
(W/cm
2
)
38.96
Operating
Control
Conditions
Mode
Mode
NA
CW
CW
CW
CW
Focus
Focus
(cm)
3
5
6
6
Power
Power
(%)
100
100
100
100
Notes: (a) This index is not required for this operating mode. see section 4.1.3.1. of the Output Display Standard
(NEMA UD-3).
(b) This probe is not intended for transcranial or neonatal cephalic uses.
(c) This formulation for TIS is less than that for an alternate formulation in this mode.
# No data are reported for this operating condition since the global maximum index value is not reported for the
reason listed.
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