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    • 7. 发明授权
    • System and method of measuring fluid pressure force
    • 测量流体压力的系统和方法
    • US4126049A
    • 1978-11-21
    • US768362
    • 1977-02-14
    • Mitchell A. Cotter
    • Mitchell A. Cotter
    • G01L9/00
    • G01L9/0022G01L9/0023
    • A system and method is described for measuring fluid pressure force by immersing a solid mechanically resonant element into the pressure-bearing medium, exciting the solid mechanically resonant element to resonance, and observing changes in frequency with changes in fluid pressure. The advantage of the disclosed method lies in the high accuracy and resolution that the system permits when it employs for the solid mechanically resonant element a nearly perfect single crystal material since the method relies upon the bulk properties of the resonant material rather than upon other factors.
    • 描述了一种用于通过将固体机械共振元件浸入承压介质中来测量流体压力的系统和方法,激励固体机械共振元件进行共振,并且随着流体压力的变化观察频率的变化。 所公开的方法的优点在于,当系统使用固体机械共振元件几乎完美的单晶材料时,系统允许的高精度和分辨率,因为该方法依赖于共振材料的体积特性而不是其它因素。