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METHOD AND APPARATUS FOR MULTI-SPECTRAL ANALYSIS IN NONINVASIVE INFRARED SPECTROSCOPY
METHOD AND APPARATUS FOR MULTI-SPECTRAL ANALYSIS IN NONINVASIVE INFRARED SPECTROSCOPY
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机译:非侵入式红外光谱多光谱分析的方法和装置
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摘要
A method and apparatus are described for determining the concentration of an organic blood analyte using multi-spectral analysis in the near infrared and mid-infrared ranges. Incident radiation containing a plurality of distinct, nonoverlapping regions of wavelengths in the range of approximately 1100 to 5000 nm is used to scan a sample. Diffusively reflected radiation emerging from the sample is detected, and a value indicative of the concentration of the analyte is obtained using an application of chemometrics techniques. Information obtained from each nonoverlapping region of wavelengths can be cross- correlated in order to remove background interferences.
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