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    • 5. 发明申请
    • METHOD AND SYSTEM FOR DETERMINING THE DIRECTION OF FLUID FLOW
    • 用于确定流体流动方向的方法和系统
    • US20070294041A1
    • 2007-12-20
    • US11470419
    • 2006-09-06
    • Sterling LapinskiDeirdre AlphenaarSusan Olson
    • Sterling LapinskiDeirdre AlphenaarSusan Olson
    • G06F19/00G01N11/00G01P5/00
    • G01F1/666
    • In an exemplary implementation of a method and system for determining the direction of fluid flow, one or more sound transducers are positioned in proximity to a conduit, each such sound transducer generating a signal representative of a selected characteristic of acoustic waves emanating from the conduit. Such signals are collected and analyzed to determine a threshold value for the selected characteristic (e.g., frequency) indicative of a change in the direction of fluid flow through the conduit. Based on whether subsequent measurements of the selected characteristic (e.g., frequency) are above or below the threshold value, the direction of fluid flow can be predicted and/or a change in the operational state of a component associated with the conduit can be identified.
    • 在用于确定流体流动方向的方法和系统的示例性实施方式中,一个或多个声音换能器定位在导管附近,每个这样的声音换能器产生表示从导管发出的声波的选定特征的信号。 收集和分析这些信号以确定指示通过导管的流体流动方向变化的所选特征(例如,频率)的阈值。 基于所选特征(例如,频率)的后续测量是否高于或低于阈值,可以预测流体流动的方向和/或可以识别与导管相关联的部件的操作状态的变化。
    • 7. 发明授权
    • Method and system for determining the direction of fluid flow
    • 确定流体流动方向的方法和系统
    • US07376522B2
    • 2008-05-20
    • US11470419
    • 2006-09-06
    • Sterling LapinskiDeirdre AlphenaarSusan Olson
    • Sterling LapinskiDeirdre AlphenaarSusan Olson
    • G06F19/00G01N11/00
    • G01F1/666
    • In an exemplary implementation of a method and system for determining the direction of fluid flow, one or more sound transducers are positioned in proximity to a conduit, each such sound transducer generating a signal representative of a selected characteristic of acoustic waves emanating from the conduit. Such signals are collected and analyzed to determine a threshold value for the selected characteristic (e.g., frequency) indicative of a change in the direction of fluid flow through the conduit. Based on whether subsequent measurements of the selected characteristic (e.g., frequency) are above or below the threshold value, the direction of fluid flow can be predicted and/or a change in the operational state of a component associated with the conduit can be identified.
    • 在用于确定流体流动方向的方法和系统的示例性实施方式中,一个或多个声音换能器定位在导管附近,每个这样的声音换能器产生表示从导管发出的声波的选定特征的信号。 收集和分析这些信号以确定指示通过导管的流体流动方向变化的所选特征(例如,频率)的阈值。 基于所选特征(例如,频率)的后续测量是否高于或低于阈值,可以预测流体流动的方向和/或可以识别与导管相关联的部件的操作状态的变化。