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D
A P P E N D I X
D
D
Appendix D
Specifi cations
Specifi cations
Doppler Flow Specifi cations
Mode:
Primary measurand:
LDF units:
BSC units:
Laser type:
Laser wavelength:
Laser power:
Laser class:
Doppler signal bandwidth:
Linearity range:
Flow response time:
Reading stability:
Zeroing:
Continuous laser Doppler fl owmetry
Microvascular blood perfusion
(Relative RBC Flux)
Relative units (0-5000 Blood Perfusion
Units, corresponding to 0-5 V output)
Relative units (0-100% corresponding to
0-5 V output)
Semiconductor laser diode
(temperature stabilized)
830 nm ± 10 nm
< 0.5 mW from probe
Class 1 (as per 21 CFR 1040-10 and
1040-11)
16 kHz
Up to 0.35% moving scatterers by volume
< 0.2 s
5% (measured with standard motility
solution)
Automatic, controlled
37
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