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Near-infrared noninvasive hemoglobin detector based on multi-wavelength
Author(s): 
Pages: 712-716
Year: Issue:  7
Journal: Chinese Journal of Medical Physics

Keyword:  hemoglobinnoninvasive detectionpartial least squares methodmulti-wavelengthdetector;
Abstract: A noninvasive hemoglobin detector was designed in the study to portably detect the human hemoglobin content.System design was divided into low-power MSP430 processor and the corresponding signal conditioning circuit. The signal conditioning circuit mainly transferred microampere-level current received by photodiode into voltage, and the voltage was amplified. Based on the attenuation principle of near-infrared transmission and dynamic spectrum method, the obtained data were compared with the results measured by Mission Hb hemoglobin analyzer of ACON biotechnology company. The comparative results showed that 18 groups of useful data were selected and predicted by partial least squares method,obtaining a correlation coefficient of 0.675, which provided a certain clinical application value.
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