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    • 2. 发明申请
    • Coriolis flowmeter
    • 科里奥利流量计
    • US20080066521A1
    • 2008-03-20
    • US11979984
    • 2007-11-13
    • Paul LogueJerry Stevens
    • Paul LogueJerry Stevens
    • G01F25/00
    • G01F1/8431G01F1/72G01F1/74G01F1/8436G01F1/849G01F25/0007
    • A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeter may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a measurement tube (4), a driver (16) for imparting a force proportional to an applied excitation signal to the measurement tube (4) for setting the measurement tube (4) into an oscillatory motion, motion sensors (17, 18) for measuring the motion of the measurement tube (4), an excitation signal generator, for generating the excitation signal to be supplied to the driver (16) based on the measurement signals derived by the motion sensors (17, 18), means (20, 27) for monitoring the excitation signal or a damping-coefficient of a damping of the measurement tube (4) and for determining whether an amplitude (A) of the excitation signal or the damping coefficient exceeds an application-specific range, and means for determining a corrected flow (Fc) of a fluid through the measurement tube (4), wherein the corrected flow (Fc) is determined based on measurement signals derived by the motion sensors (17, 18), when the excitation signal or the damping coefficient has an amplitude, that lies within the application-specific range and wherein the corrected flow (Fc) is set to an application-specific flow, when the excitation signal or the damping coefficient has an amplitude, that exceeds the application-specific range.
    • 一种具有改进的测量精度的科里奥利流量计,特别是在测量应用中,其中常规的科里奥利流量计可能由于在无流动情况期间错误的流量溢出或输出而具有降低的精度,包括:测量管(4),驱动器 16),用于将与所施加的激励信号成比例的力施加到所述测量管(4)以将所述测量管(4)设置为振荡运动;用于测量所述测量管(4)的运动的运动传感器(17,18) ,激励信号发生器,用于基于由运动传感器(17,18)导出的测量信号产生要提供给驱动器(16)的激励信号,用于监视激励信号或阻尼的装置(20,27) - 测量管(4)的阻尼系数和用于确定激励信号的振幅(A)或阻尼系数是否超过应用特定范围,以及用于 通过所述测量管(4)确定流体的校正流量(F SUB),其中基于由所述测量管(4)导出的测量信号来确定所述校正流量(F c C c) 运动传感器(17,18),当激励信号或阻尼系数具有幅度时,其位于应用特定范围内,并且其中校正流(F C c)被设置为应用专用范围, 当激励信号或阻尼系数具有超过应用特定范围的幅度时,具体流程。
    • 5. 发明申请
    • Coriolis flowmeter
    • 科里奥利流量计
    • US20060058971A1
    • 2006-03-16
    • US10940759
    • 2004-09-15
    • Paul LogueJerry Stevens
    • Paul LogueJerry Stevens
    • G06F19/00
    • G01F1/8431G01F1/72G01F1/74G01F1/8436G01F1/849G01F25/0007
    • A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeters may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a measurement tube, a driver for imparting a force proportional to an applied excitation signal to the measurement tube for setting the measurement tube into an oscillatory motion, motion sensors for measuring the motion of the measurement tube, an excitation signal generator, for generating the excitation signal to be supplied to the driver based on the measurement signals derived by the motion sensors, means for monitoring the excitation signal or a damping-coefficient of a damping of the measurement tube and for determining whether an amplitude (A) of the excitation signal or the damping coefficient exceeds an application-specific range, and means for determining a corrected flow (Fc) of a fluid through the measurement tube, wherein the corrected flow (Fc) is determined based on measurement signals derived by the motion sensors, when the excitation signal or the damping coefficient has an amplitude, that lies within the application-specific range and wherein the corrected flow (Fc) is set to an application-specific flow, when the excitation signal or the damping coefficient has an amplitude, that exceeds the application-specific range.
    • 一种具有改进的测量精度的科里奥利流量计,特别是在测量应用中,其中常规的科里奥利流量计可能由于在无流动情况期间错误的流量溢出或输出而具有降低的精度,其包括:测量管,用于施加力 与用于将测量管设置为振荡运动的测量管的施加的激励信号成比例,用于测量测量管运动的运动传感器,用于产生将被提供给驾驶员的激励信号的激励信号发生器,基于 由运动传感器导出的测量信号,用于监测激励信号的装置或测量管的阻尼的阻尼系数,并且用于确定激励信号的振幅(A)或阻尼系数是否超过应用特定范围, 以及用于通过所述测量来确定流体的校正流量(F c C c S)的装置 其中当激励信号或阻尼系数具有位于应用特定范围内的振幅时,基于由运动传感器导出的测量信号来确定校正流量(F c C) 并且其中当所述激励信号或所述阻尼系数具有超过所述应用特定范围的幅度时,将所述校正流(F SUB)设置为特定应用流程。