Probe for evaluating the absorbing and transport scattering properties of turbid fluids using low-cost time-of-flight technology.
Probe for evaluating the absorbing and transport scattering properties of turbid fluids using low-cost time-of-flight technology.
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使用低成本飞行时间技术评估混浊流体的吸收和传输散射特性的探头。
DOI：
10.1117/1.jbo.22.5.055009
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发表时间：
2017
影响因子：
3.5
通讯作者：
Hebden JC
中科院分区：
文献类型：
--
作者：
Hebden JC
描述了一种探针，当浸入高散射流体时，可以测量其在单个光学波长下的散射和吸收特性。它使用最近可用的低成本接近传感器模块来估计光子在两个不同距离的近红外光源和探测器之间扩散传输的平均飞行时间。该探针被设计为一种特定的应用，能够快速有效地生产流体，模拟生物组织的光学特性。使用预校准的脂内溶液、静脉内营养物和吸收染料证明了该装置的潜力。结果表明，在两个源-探测器距离处的飞行时间测量组合可以唯一地指定吸收系数和输运散射系数。
A probe is described that when immersed into a highly scattering fluid provides a measurement of its scattering and absorbing properties at a single optical wavelength. It uses recently available low-cost proximity sensor modules to estimate the mean flight times of photons diffusely transmitted between near-infrared sources and detectors at two different separations. The probe has been designed with a specific application for enabling the rapid and efficient production of fluids, which mimic the optical properties of biological tissues. The potential of the device is demonstrated using precalibrated solutions of intralipid, an intravenous nutrient, and absorbing dye. It is shown that a combination of time-of-flight measurements at two source–detector separations can uniquely specify the absorption coefficient and the transport scattering coefficient.