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    • 6. 发明申请
    • METHODS AND APPARATUS FOR DETECTION OF FLUID INTERFACE FLUCTUATIONS
    • 用于检测流体界面波动的方法和装置
    • US20130333483A1
    • 2013-12-19
    • US14002569
    • 2012-03-05
    • Kirill HoroshenkovAndrew Nichols
    • Kirill HoroshenkovAndrew Nichols
    • G01F1/66
    • G01F1/66G01F23/0069G01F23/2962G01S7/52004G01S7/54G01S15/36
    • Dynamic characteristics of a liquid surface (160) are measured by sending acoustic signals (140) to or more target areas (162a-162c) on the liquid surface and receiving said acoustic signals (150a-150c) after reflection from the target area. The detected signals are processed to measure phase shift between the sent and received acoustic signals, the measured phase shift varying over time. The varying phase shift is used to indicate fluctuations over time in the local height of the liquid surface in the target area. The liquid may be water, effluent etc. flowing in a channel or conduit. With suitable calibration, the measured height fluctuations can be used to infer flow characteristics such as surface roughness, wave height, flow depth, flow velocity, volumetric flow rate, shear stress, sediment transport. Using an array of receivers and target areas, additional spatial and temporal characteristics of the surface and the flow can be measured.
    • 通过在液面上发送声信号(140)到目标区域(162a-162c)或从目标区域反射之后接收所述声信号(150a-150c)来测量液面(160)的动态特性。 检测到的信号被处理以测量发送和接收的声信号之间的相移,测量的相移随时间变化。 变化的相移用于指示目标区域中液面的局部高度随时间的波动。 液体可以是在通道或导管中流动的水,流出物等。 通过适当的校准,测量的高度波动可用于推断流动特性,如表面粗糙度,波高,流量深度,流速,体积流量,剪切应力,泥沙输送。 使用一组接收器和目标区域,可以测量表面和流量的额外的空间和时间特征。