Method of physical-chemical analysis based on the control of interface
tensions, and corresponding apparatus
    1.
    发明授权
    Method of physical-chemical analysis based on the control of interface tensions, and corresponding apparatus 失效
    基于界面张力控制的物理化学分析方法及相应设备

    公开(公告)号:US5479816A

    公开(公告)日:1996-01-02

    申请号:US117177

    申请日:1994-04-22

    IPC分类号: G01N13/02

    摘要: Process and apparatus for analyzing the characteristics of a liquid/fluid interface, especially in the presence of surface-active agents. A tensiometer operates according to the principle of the suspended drop and the amount of liquid injected in the drop is adjusted according to the value of the calculated interface tension; the volume of the formed drop is progressively increased as the interface tension tends to diminish. A drop-forming device (30) can acquire an image of the drop and read the drop contour (40), can calculate the interface tension based on the shape and the size of the contour, and can adjust the same. A method of high speed measurement of interface tension uses all the points in the drop contour and provides a value in less than a second with the aid of a microcomputer.

    摘要翻译: PCT No.PCT / FR92 / 00227 Sec。 371日期1994年04月22日 102(e)日期1994年4月22日PCT 1991年3月12日PCT公布。 出版物WO92 / 16824 日期1992年10月1日。用于分析液体/流体界面的特性的处理和装置,特别是在存在表面活性剂的情况下。 张力计根据悬浮液的原理进行操作,并根据计算的界面张力的值调整滴入液中的液体量; 当界面张力趋于减小时,形成的液滴的体积逐渐增加。 液滴形成装置(30)可以获取液滴的图像并读取液滴轮廓(40),可以基于轮廓的形状和尺寸计算界面张力,并且可以进行调节。 高速测量接口张力的方法使用液滴轮廓中的所有点,并借助于微型计算机在不到一秒的时间内提供一个值。