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    • 2. 发明申请
    • Flow Velocity and Pressure Measurement Using a Vibrating Cantilever Device
    • 使用振动悬臂装置的流速和压力测量
    • US20100071477A1
    • 2010-03-25
    • US12527346
    • 2008-01-31
    • Georg HaehnerGennady Lubarsky
    • Georg HaehnerGennady Lubarsky
    • G01F1/20G01Q60/24
    • G01Q30/14G01F1/20G01F1/32G01L9/0011G01Q40/00G01Q60/38
    • Measurement apparatus having a cantilever and a fluid flow channel, the cantilever being positioned in the channel so that it projects in a direction parallel to the direction of fluid flow. In an associated method, the cantilever is positioned in a fluid flow channel such that the cantilever extends parallel with the direction of fluid flow in the channel. Fluid is caused to flow in the channel at a known velocity. The resonant frequency of the cantilever is measured at one or more velocities of fluid flow and calculating the spring constant of the cantilever using the measured resonant frequency or frequencies. If the spring constant of the cantilever is known, the measurement of resonant frequency of the cantilever is used to determine the velocity of the fluid flow.
    • 具有悬臂和流体流动通道的测量装置,所述悬臂位于通道中,使得其在平行于流体流动方向的方向上突出。 在相关联的方法中,悬臂被定位在流体流动通道中,使得悬臂与通道中的流体流动的方向平行地延伸。 使流体以已知的速度在通道中流动。 在一个或多个流体流速下测量悬臂的共振频率,并使用测量的谐振频率或频率计算悬臂的弹簧常数。 如果悬臂的弹簧常数是已知的,则使用悬臂的谐振频率的测量来确定流体流动的速度。