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    • 17. 发明授权
    • Biomedical force measuring apparatus
    • 生物医用力测量仪
    • US5218972A
    • 1993-06-15
    • US754960
    • 1991-09-04
    • Reynolds G. GorsuchJohn Atkins
    • Reynolds G. GorsuchJohn Atkins
    • A61B5/03
    • A61B5/033
    • A force transducer usable tokodynamometer for measuring intrauterine pressure and motion, and for measuring other force exerted by human body or other organisms. The tokodynamometer has a cavity filled with an incompressible fluid and closed by a flexible diaphragm disposed for contacting the body portion being studied. A zero-displacement fluid-pressure transducer is in the cavity and provides an electrical signal responsive to pressure in the fluid, as body force acts through the flexible diaphragm to induce pressure in the fluid. Changes in intrauterine pressure or other body forces are thus measured with no significant physical displacement of a transducer or other force-measuring element. The fluid-filled cavity has the shape of a truncated cone with the diaphragm at the larger end and the transducer at the smaller end, increasing the sensitivity of the transducer.
    • 用于测量宫内压力和运动的力传感器,用于测量人体或其他生物施加的其他力的力传感器。 该动力计具有填充有不可压缩流体的空腔,并且被设置成用于接触所研究的主体部分的柔性隔膜封闭。 零位移流体压力传感器位于空腔中,并且响应于流体中的压力而提供响应于体力的电信号,因为体力通过柔性隔膜作用以引起流体中的压力。 因此,测量宫内压力或其他身体力的变化,没有传感器或其他力测量元件的显着物理位移。 流体填充的空腔具有截头圆锥体的形状,隔膜在较大的端部,传感器在较小端部,增加了传感器的灵敏度。