中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Apparatus and method for noninvasive human component measurement with optional optical length

文献类型:专利

作者XU, KEXIN; DU, ZHENHUI
发表日期2008-07-17
专利号US20080171925A1
著作权人TIANJIN SUNRISE TECHNOLOGIES DEVELOPMENT CO., LTD.
国家美国
文献子类发明申请
其他题名Apparatus and method for noninvasive human component measurement with optional optical length
英文摘要This specification discloses a method and apparatus for noninvasive measurement of human body component, such as glucose, in vivo. The apparatus includes near infrared spectroscopy based laser sources driven at carrier frequency lying within the absorption line of the component. The apparatus also drive the laser diodes with a modulation frequency to generate frequency difference between the measuring light and reference beam, and the interference of the two beam results in a beat signal, which frequency is proportional to optical path difference between the measuring light and reference beam. We can detect the spectrum of the scattering light, which propagate at specifically single optical path, by select the frequency using a phase sensitive detector (PSD) circuit. The apparatus include several laser sources and its controllers which modulate the laser's radiation, and includes an optical fiber coupler and splitter to split the laser into measuring and reference beam, and includes PSD circuit to detect the signal by the frequency. The apparatus further includes a signal processor that applies a derivative spectroscopy technique, such as wavelength modulation spectroscopy, to determine the concentration of the component in the body.
公开日期2008-07-17
申请日期2008-01-10
状态授权
源URL[http://ir.opt.ac.cn/handle/181661/58203]  
专题半导体激光器专利数据库
作者单位TIANJIN SUNRISE TECHNOLOGIES DEVELOPMENT CO., LTD.
推荐引用方式
GB/T 7714
XU, KEXIN,DU, ZHENHUI. Apparatus and method for noninvasive human component measurement with optional optical length. US20080171925A1. 2008-07-17.

入库方式: OAI收割

来源:西安光学精密机械研究所

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