J Acoustic Power Data and Surface Temperature Data
Operator’s Manual J - 3
J.2 Transducer Maximum Surface Temperature
According to the requirements of the section 201.11 in the standard IEC 60601-2-37: 2015, the
transducer surface temperature has been tested in two kinds of conditions: the transducer suspended
in still air or transducer contacting human-tissue mimicking material.
The measurement data were obtained under the test conditions employed at Mindray.
I
pa,α
at z
pii,α
Attenuated pulse-average intensity in W/cm
2
at the location of
maximum attenuated pulse-intensity integral (pii
α
)
I
spta,α
at z
pii,α
or z
sii,α
Attenuated spatial-peak temporal-average intensity at the location of
maximum attenuated pulse-intensity integral (pii
α
) for non-scanning
modes, or at the location of maximum attenuated scan intensity integral
(sii
α
) for scanning modes
I
spta
at z
pii
or z
sii
Spatial-peak temporal-average intensity at the location of maximum
pulse-intensity integral (pii) for non-scanning modes, or at the location
of maximum scan intensity integral (sii) for scanning modes
p
r
at z
pii
The peak-rarefactional acoustic pressure at the point on the beam axis
of maximum pulse intensity integral
I
sppa.3
Derated spatial-peak pulse-average intensity in W/cm
2
I
spta.3
Derated spatial-peak temporal-average intensity in mW/cm
2
Symbol Description
Transducer
model
Maximum surface temperature(°C)
Contacting TMM
Maximum surface temperature
(°C) Suspending in air
C5-1s 39.2 36.5
LFP5-1s 40.6 38.2
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