Analysis on performance and optimization of frequency-domain near-infrared instruments.
Analysis on performance and optimization of frequency-domain near-infrared instruments.
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DOI：
10.1117/1.1501562
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发表时间：
2002-10
影响因子：
3.5
通讯作者：
Tao Tu;Yu Chen;Jun Zhang;X. Intes;B. Chance
中科院分区：
文献类型：
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作者：
Tao Tu;Yu Chen;Jun Zhang;X. Intes;B. Chance
频域近红外技术已被广泛应用于生物组织光学特性的无损检测。在本文中，我们提出了一个分析模型来评估频域仪器的性能。基于扩散方程和光电子器件的传输特性，我们将包括介质在内的所有部分视为二端口网络，并用系统的方法回答有关频域仪器的问题。实验表明，该方法能在7%的精度内合理地反映仪器的性能。这种方法可以用来设计适用于各种应用的仪器。我们还利用这个分析模型分析了仪器参数的选择，以获得最优的性能和有效的成本。
Frequency-domain near-infrared techniques have been widely used to detect the optical properties of biological tissues noninvasively. In this paper we propose an analytical model to evaluate the performance of frequency-domain instruments. Based on the diffusion equation and the transfer properties of optoelectronic components, we treat all parts, including the medium, as two-port networks and apply systematic methods to answer questions concerning frequency-domain instruments. Experiments show that this method can reasonably reflect the properties of the instrument within an accuracy of 7%. This kind of method can be used to design suitable instruments for various applications. We also analyze the selection of the instrument parameters to achieve optimal performance at an efficient cost using this analytical model.