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    Method and apparatus for measuring the yield stress of non-newtonian fluids
    10.
    发明授权
    Method and apparatus for measuring the yield stress of non-newtonian fluids 失效
    用于测量非牛顿流体的应力的方法和装置

    公开(公告)号：US3696661A

    公开(公告)日：1972-10-10

    申请号：US3696661D

    申请日：1969-12-11

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： GARABRANT ARTHUR R ,  BEERBOWER ALAN ,  WILSON JAMES A

    IPC分类号： G01N11/16 ,  G01N29/00 ,  G01N11/10

    CPC分类号： G01N11/16

    摘要： A method and apparatus for measuring the yield stress of a nonNewtonian fluid possessing a yield stress. A small sample of the fluid is disposed in a test cell with a solid particle of known specific gravity and geometry. The sample is vibrated by an electronic means so as to generate an alternating, asymmetric displacing force; and, at the first displacement of the particle, the amplitude and frequency of the vibrations is electronically measured. The yield stress is determined as a function of the amplitude and frequency of the vibration at the time of initial displacement.

    摘要翻译： 一种用于测量具有屈服应力的非牛顿流体的屈服应力的方法和装置。 将一小部分流体样品放置在具有已知比重和几何形状的固体颗粒的测试电池中。 样品通过电子装置振动，以产生交替的非对称置换力; 并且在颗粒的第一位移时，电子地测量振动的振幅和频率。 屈服应力根据初始位移时振动的幅度和频率确定。