Appendix D: Acoustic Output Information Accordance With; Iec 60601-2-37; Acoustic Output Table With Olympus Compact Endoscopic Ultrasound; Center - Olympus BF-UC180F Instructions Manual

Appendix D: Acoustic Output
Information Accordance with

IEC 60601-2-37

Acoustic output table with Olympus compact
endoscopic ultrasound center
Acoustic output table with Hitachi diagnostic
ultrasound system
ULTRASONIC BRONCHOFIBERVIDEOSCOPE BF-UC180F
Appendix D: Acoustic Output Information Accordance with IEC 60601-2-37
BF-UC180F will not exceed an MI of 1.0, or an I
mode. In addition, BF-UC180F will not exceed a TI of 1.0 in any mode.
The terms used in the acoustic output table are as follows:

Acoustic attenuation coefficient
A
–12 dB output beam area
aprt
A
eq
Normalizing coefficient
(z)
D
eq Equivalent aperture diameter
d
Pulse beam width
6 –
d
eq Equivalent beam diameter
ƒ
Acoustic working frequency
awƒ
I
pa Pulse-average intensity
I
pa 
Attenuated pulse-average intensity
,
I
pi Pulse-intensity integral
I
pi 
Attenuated pulse-intensity integral
,
I
Temporal-average intensity
ta
(z)
I

ta Attenuated temporal-average intensity
, ( z )
2
of 720 mW/cm
spta.3
in any
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