An Evaluation of Acoustic Doppler Velocimeters as Sensors to Obtain the Concentration of Suspended Mass in Water
An Evaluation of Acoustic Doppler Velocimeters as Sensors to Obtain the Concentration of Suspended Mass in Water
复制标题
声学多普勒测速仪作为传感器获取水中悬浮物浓度的评估
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
E. Boss
中科院分区：
文献类型：
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作者：
Clementina Russo;E. Boss
在过去的二十年中，海洋科学界的研究人员使用声学多普勒测速仪 (ADV) 和其他声学传感器来获取有关当前速度和湍流的信息。最近，人们对声学反向散射系统（ABS）和声学多普勒电流剖面仪（ADCP）在确定沉积物浓度和颗粒尺寸方面的用途进行了研究。与光学浊度传感器相比，声学系统往往不易产生生物污垢，并且高频速度测量可以通过颗粒材料的通量直接估计湍流。这项工作研究了两种市售 ADV 对颗粒质量浓度变化的响应。对每个传感器对三种不同尺寸类别的聚合物珠的浓度的响应进行了仔细的实验室表征，并与声散射理论的预测响应进行了比较。在不确定性范围内，实验结果与理论一致，并且这些结果表明，如果散射体的基本声学特性已知，或者执行局部替代校准，则 ADV 型传感器可以根据测量的声学返回提供粒子浓度的稳健估计。
During the last two decades, acoustic Doppler velocimeters (ADVs) and other acoustic sensors have been used by researchers in the ocean science community to acquire information on current velocity and turbulence. More recently, acoustic backscatter systems (ABS) and acoustic Doppler current profilers (ADCPs) have been investigated for their use in determining sediment concentrations and particle sizes. Acoustic systems tend to be less prone to biofouling than optical turbidity sensors, and the high-frequency velocity measurements allow for a direct estimation of turbulence by the flux of particulate materials. This work investigates the responses of two commercially available ADVs to changes in mass concentrations of particles. A careful laboratory characterization of each sensor’s response to concentrations of three different size classes of polymer beads is evaluated and compared with the predicted response from acoustic scattering theory. Within uncertainties, experimental results are shown to agree with theory and these results demonstrate that, if the basic acoustic properties of the scatterers are known or if a local, vicarious calibration is performed, then ADV-type sensors can provide a robust estimate of particle concentrations from the measured acoustic return.
影响因子：
2.3
作者：
Betteridge, Kyle F. E.;Thorne, Peter D.;Cooke, Richard D.
通讯作者：
Cooke, Richard D.