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1.发明申请ANALYZING ULTRASONIC SIGNALS USING A DYNAMIC WINDOW FOR AN EARLY DETECTION OF SCALING IN WATER PROCESSING EQUIPMENT 有权使用动态窗口分析超声波信号，以便早期检测水处理设备中的分级公开(公告)号：US20130238133A1
公开(公告)日：2013-09-12
申请号：US13809780
申请日：2011-07-12
申请人： Alan R. Greenberg , Jack Gilron , Keith D. Cobry , Elmira Kujundzic , Xiao Yun Lu , Guy Mizrahi , Michael Peterson
发明人： Alan R. Greenberg , Jack Gilron , Keith D. Cobry , Elmira Kujundzic , Xiao Yun Lu , Guy Mizrahi , Michael Peterson
IPC分类号： G01N29/02
CPC分类号： G01N29/02 , G01N29/032 , G01N2291/02491 , G01N2291/0258 , G01N2291/02836 , G01N2291/2634
摘要： A method of early detection of scaling on internal surfaces of conduits of water processing equipment, is provided herein. The method includes: transmitting ultrasonic signals through the wall of the conduits; deriving data samples from received ultrasonic signals or reflections thereof; calculating a moving average of the scatter of the ultrasonic signals, over time, based on the data samples; applying a statistical operand to the moving average, to yield a statistical distribution metric; determining a dynamic window defined by: (i) an upper boundary being the moving average plus at least a fraction of the statistical distribution metric and (ii) a lower boundary being the moving average minus the at least a fraction of the statistical distribution metric; generating a trend line being a smooth fitting of the derived samples; and monitoring the trend line within the window to detect a crossover of the trend line at either of the boundaries.
摘要翻译： 本文提供了一种早期检测水处理设备管道内表面上的结垢的方法。 该方法包括：通过导管壁传输超声波信号; 从接收到的超声信号或其反射导出数据样本; 根据数据样本，随时间计算超声波信号散射的移动平均值; 将统计操作数应用于移动平均值，以产生统计分布度量; 通过以下步骤确定动态窗口：（i）上边界是移动平均加上统计分布度量的至少一部分，以及（ii）作为移动平均值的下边界减去统计分布度量的至少一部分; 产生趋势线是导出样本的平滑拟合; 并监视窗口内的趋势线以检测任一边界上趋势线的交叉。
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2.发明授权Analyzing ultrasonic signals using a dynamic window for an early detection of scaling in water processing equipment 有权使用动态窗口分析超声波信号，以便早期检测水处理设备中的结垢公开(公告)号：US09164062B2
公开(公告)日：2015-10-20
申请号：US13809780
申请日：2011-07-12
申请人： Alan R Greenberg , Jack Gilron , Keith D Cobry , Elmira Kujundzic , Xiao Yun Lu , Guy Mizrahi , Michael Peterson
发明人： Alan R Greenberg , Jack Gilron , Keith D Cobry , Elmira Kujundzic , Xiao Yun Lu , Guy Mizrahi , Michael Peterson
IPC分类号： G01N29/02 , G01N29/032
CPC分类号： G01N29/02 , G01N29/032 , G01N2291/02491 , G01N2291/0258 , G01N2291/02836 , G01N2291/2634
摘要： A method of early detection of scaling on internal surfaces of conduits of water processing equipment, is provided herein. The method includes: transmitting ultrasonic signals through the wall of the conduits; deriving data samples from received ultrasonic signals or reflections thereof; calculating a moving average of the scatter of the ultrasonic signals, over time, based on the data samples; applying a statistical operand to the moving average, to yield a statistical distribution metric; determining a dynamic window defined by: (i) an upper boundary being the moving average plus at least a fraction of the statistical distribution metric and (ii) a lower boundary being the moving average minus the at least a fraction of the statistical distribution metric; generating a trend line being a smooth fitting of the derived samples; and monitoring the trend line within the window to detect a crossover of the trend line at either of the boundaries.
摘要翻译： 本文提供了一种早期检测水处理设备管道内表面上的结垢的方法。 该方法包括：通过导管壁传输超声波信号; 从接收到的超声信号或其反射导出数据样本; 根据数据样本，随时间计算超声波信号散射的移动平均值; 将统计操作数应用于移动平均值，以产生统计分布度量; 通过以下步骤确定动态窗口：（i）上边界是移动平均加上统计分布度量的至少一部分，以及（ii）作为移动平均值的下边界减去统计分布度量的至少一部分; 产生趋势线是导出样本的平滑拟合; 并监视窗口内的趋势线以检测任一边界上趋势线的交叉。
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公开(公告)号：US09618441B2
公开(公告)日：2017-04-11
申请号：US13695251
申请日：2011-05-02
CPC分类号： G01N15/088 , G01N5/04 , G01N15/08 , G01N15/0806 , G01N15/0893 , G01N2015/086
摘要： A method for determination of pore-size distribution in a porous material called evapo porometry (EP) is capable of determining pore sizes from approximately the nanometer scale up to the micron scale. EP determines the pore size based on the evaporative mass loss at constant temperature from porous materials that have been pre-saturated with either a wetting or non-wetting volatile liquid. The saturated porous material is placed in an appropriate test cell on a conventional microbalance to measure liquid mass loss at a constant temperature as a function of time. The mass-loss rate is then related to the pore-size distribution. The microbalance permits measuring the mass as a function of time. The slope of the mass versus time curve is the evaporation rate. The evaporation rate is related to the vapor pressure at the interface between the liquid in the porous material and the ambient gas phase. The vapor pressure in turn is related to the pore diameter.
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4.发明申请公开(公告)号：US20130042670A1
公开(公告)日：2013-02-21
申请号：US13695251
申请日：2011-05-02
IPC分类号： G01N15/08
CPC分类号： G01N15/088 , G01N5/04 , G01N15/08 , G01N15/0806 , G01N15/0893 , G01N2015/086
摘要： A method for determination of pore-size distribution in a porous material called evapo porometry (EP) is capable of determining pore sizes from approximately the nanometer scale up to the micron scale. EP determines the pore size based on the evaporative mass loss at constant temperature from porous materials that have been pre-saturated with either a wetting or non-wetting volatile liquid. The saturated porous material is placed in an appropriate test cell on a conventional microbalance to measure liquid mass loss at a constant temperature as a function of time. The mass-loss rate is then related to the pore-size distribution. The microbalance permits measuring the mass as a function of time. The slope of the mass versus time curve is the evaporation rate. The evaporation rate is related to the vapor pressure at the interface between the liquid in the porous material and the ambient gas phase. The vapor pressure in turn is related to the pore diameter.
摘要翻译： 用于测定称为蒸发孔隙率（EP）的多孔材料中的孔径分布的方法能够确定从大约纳米级至微米级的孔径。 EP基于已经用润湿或非润湿挥发性液体预饱和的多孔材料在恒定温度下基于蒸发质量损失来确定孔径。 将饱和多孔材料放置在常规微量天平上的合适的测试池中，以在恒定温度下测量作为时间的函数的液体质量损失。 然后质量损失率与孔径分布有关。 微量天平允许测量质量作为时间的函数。 质量对时间曲线的斜率是蒸发速率。 蒸发速率与多孔材料中的液体与环境气相之间的界面处的蒸气压有关。 蒸气压又与孔径有关。
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