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E-PSM(P)W module introduction
1-45
Document no. 2044677-001
Pulse rate
The pulse rate calculation is done by peak detection of the plethysmographic pulse wave. The
signals are filtered to reduce noise and checked to separate artifacts.
Figure 25
Absorption of infrared light in the finger
Figure 26
Pulse oximetry probe parts layout and schematic diagram
absor
ption_
of_ligh
t.vsd
No pulsation
Pulsatile blood
Time
Venous blood
Tissue
Arterial blood
Intensity of
transmitted
light
Transmitted
light
Variable absorption
due to pulse added
volume of arterial
blood
Imax (DC-component)
Imax
Imin
Incident light
AC-component
P
S
M
_absorpti
o
n_of_i
nfrar
ed.vsd
Emitter
Detector
SpO2 sensor connector
IRED
RED
Summary of Contents for b30
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Page 12: ...B30 Patient Monitor 8 Document no 2044677 001...
Page 13: ...1 Introduction...
Page 14: ......
Page 61: ...2 Installation...
Page 69: ...3 Maintenance...
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Page 105: ...4 Troubleshooting...
Page 106: ......
Page 125: ...5 Service Menu...
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Page 158: ...B30 Patient Monitor 5 32 Document no 2044677 001...
Page 159: ...6 Field replaceable unit...
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Page 166: ...B30 Patient Monitor 6 6 Document no 2044677 001 1 6 Frame for B30 Frame for B30...
Page 183: ...Frame disassembly 6 23 Document no 2044677 001...
Page 190: ...B30 Patient Monitor 6 30 Document no 2044677 001...
Page 191: ...7 Technical specification...
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Page 198: ...B30 Patient Monitor 7 6 Document no 2044677 001...
Page 199: ...8 N F C REC Module...
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Page 238: ...B30 Patient Monitor A 6 Document no 2044677 001...
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