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Operating Environment
a) Temperature:10 ºC ~ 40 ºC
b) Relative Humidity: ≤75%
c) Atmospheric pressure: 700hPa ~ 1060hPa
3. Principle and Caution
3.1 Principle of measurement
Principle of the Oximeter is as follows: An experience
formula of data process is established taking use of
Lambert Beer Law according to Spectrum Absorp-
tion Characteristics of Reductive Hemoglobin (Hb)
and Oxyhemoglobin (HbO
2) in glow & near-infrared
zones. Operation principle of the instrument is: Pho-
toelectric Oxyhemoglobin Inspection Technology is
adopted in accordance with Capacity Pulse Scanning
& Recording Technology, so that two beams of diffe-
rent wavelength of lights can be focused onto human
nail tip through perspective clamp nger-type sensor.
Then measured signal can be obtained by a pho-
tosensitive element, information acquired through
which will be shown on screen through treatment in
electronic circuits
and micropro-
cessor.
Figure 1:
Operating principle
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