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首页> 外文期刊>Optics Letters >Measurement of particle concentration in flow by statistical analyses of optical coherence tomography signals
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Measurement of particle concentration in flow by statistical analyses of optical coherence tomography signals

机译：通过光学相干断层扫描信号的统计分析测量流动中的颗粒浓度

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摘要

We present a statistic method to measure the concentration of particles in flow by the use of optical coherence tomography (OCT). This method is based on the fact that the fluctuating numbers of particles contained within a small OCT detection volume caused by Brownian motion are governed by Poissonian distribution. Particle concentration is evaluated from the statistical analyzes of the OCT intensity signals that are backscattered by the moving particles. The method is experimentally verified with flow phantoms of polymer microspheres. Experimental results are in good agreement with the theoretical ones for low concentrations while relatively large discrepancies emerge for high concentrations.
机译：我们提出一种统计方法，通过使用光学相干断层扫描（OCT）来测量流中颗粒的浓度。该方法基于以下事实：由布朗运动引起的小OCT检测体积中包含的粒子的波动数受泊松分布控制。通过对运动颗粒反向散射的OCT强度信号的统计分析来评估颗粒浓度。该方法已通过聚合物微球的流动模型进行了实验验证。对于低浓度，实验结果与理论结果吻合良好，而对于高浓度，则出现相对较大的差异。

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