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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