A homodyne frequency-domain instrument - I&Q phase detection system

被引：7

作者：

Ma, HY

Du, CW

Chance, B

机构：

来源：

OPTICAL TOMOGRAPHY AND SPECTROSCOPY OF TISSUE: THEORY, INSTRUMENTATION, MODEL, AND HUMAN STUDIES II, PROCEEDINGS OF | 1997年 / 2979卷

关键词：

I&Q; Phase Modulation System(PMS); homodyne system;

D O I：

10.1117/12.280231

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The noninvasive NIR detection technique can be used to detect the clinic-related parameter such as hemoglobin concentration and saturation. By now, many techniques have been demonstrated in both time-domain and frequency domain to obtain quantitative optical properties. In this paper, we will demonstrate one kind of simple homodyne phase modulation system - In-Phase and Quadrature Phase (I&Q) Detection System, introducing its principle and constitution, presenting its performance through the tests of ink, intralipid and blood model.

引用

页码：826 / 837

页数：12