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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >An exploratory study of using external fluid loading on a vibrating tube for measuring suspended sediment concentration in water
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An exploratory study of using external fluid loading on a vibrating tube for measuring suspended sediment concentration in water

机译：利用振动管上的外部流体载荷测量水中悬浮沉淀物浓度的探索性研究

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摘要

This paper presents an exploratory study of using external fluid loading on a vibrating tube for measuring the suspended sediment concentration (SSC) in bodies of water such as rivers and reservoirs. This new measuring concept provides an opportunity for an automated on-site monitoring of the conditions in a body of water by taking the fluid sample instantaneously in the area surrounding the vibrating tube. The physical properties of the fluid sample are those of the fluid that naturally flows around the tube, and are more representative of those of the water with SSC to be measured. The theoretical analysis presented in this paper shows that the resonance frequencies of an immersed vibrating tube change significantly with mass density variations that normally occur in bodies of water with suspended sediment. These changes are sensitive enough to have a possible 1% resolution of the measured fluid density. The signal processing issues are discussed, and a schematic of a conceptual measuring setup is proposed. Based on the theoretical analyses and other measurement issues presented in the paper, using the loading by external fluid on a vibrating tube is feasible for measuring the SSC in water bodies.
机译：本文提出了使用振动管上的外部流体载荷来测量河流和水库等水域中悬浮泥沙浓度（SSC）的探索性研究。通过在振动管周围区域即时获取流体样本，这种新的测量概念为水体中条件的自动现场监测提供了机会。流体样品的物理特性是指自然流过管子的流体的物理特性，并且更能代表具有待测SSC的水的物理特性。本文介绍的理论分析表明，浸入式振动管的共振频率会随质量密度的变化而显着变化，而质量密度的变化通常发生在具有悬浮沉积物的水体中。这些变化足够灵敏，可能具有所测流体密度的1％分辨率。讨论了信号处理问题，并提出了概念性测量设置的示意图。根据本文提出的理论分析和其他测量问题，利用外部流体在振动管上的载荷来测量水体中的SSC是可行的。

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