Olympus BF-UC180F Instructions Manual page 171

Appendix D: Acoustic Output Information Accordance with IEC 60601-2-37
164
I
Spatial-peak temporal-average intensity
zpta
(z)
I
zpta  Attenuated spatial-peak temporal-average intensity
, (z)
MI
Mechanical index
P
Output power
P

Attenuated output power
P
Bounded output power
1
p
Pulse pressure squared integral
i
p
r
Peak-rarefactional acoustic pressure
p

Attenuated peak-rarefactional acoustic pressure
r
,
prr
Pulse repetition rate
TI
Thermal index
TIB
Bone thermal index
TIC
Cranial-bone thermal index
TIS
Soft-tissue thermal index
t d
Pulse duration
X Y
,
–12 dB output beam dimensions
z
Distance from the source to a specified point
z b
Depth for TIB
z bp
Break-point depth
z s
Depth for TIS
 Acoustic measurement uncertainty
Quantity
Total power
PII
Pr
Fc
ULTRASONIC BRONCHOFIBERVIDEOSCOPE BF-UC180F
Uncertainty (95% confidence)
8.07%
12.87%
7.63%
2.39%