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according to Spectrunm Absorprtion characteristic of Reductive
hemoglobin(Hb) and oxyhemoglobin(HbO2)in
glow&near-infrared zones. Opertation Principle of the device
is:Photoelectric Oxyhemoglobin Inspection Technology is
adopted in accordance with Capacity Pulse Scanning Recording
Technology,So that two beams of different wavelength of lights
can be focused onto human nail tip through perspective clamp
finger-type sensor.Then measured signal can be obtained by a
photosensitive element, information acquired through which
will be shown on screen through treatment in electronic