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    Hydrometer
    1.
    发明授权
    Hydrometer 失效
    比重计

    公开(公告)号：US5631420A

    公开(公告)日：1997-05-20

    申请号：US677834

    申请日：1996-07-10

    申请人： Tommy Chi-Kin Wong

    发明人： Tommy Chi-Kin Wong

    IPC分类号： G01N9/16 ,  G02N9/00

    CPC分类号： G01N9/16

    摘要： A hydrometer includes a liquid container defining a measuring chamber. A pointer is pivotally mounted inside the measuring chamber and adapted for indicating the specific gravity of a liquid sample contained in the measuring chamber. The liquid container is mounted with a concealed liquid sample intake pipe adapted for picking up the liquid sample to be measured and delivering the liquid sample to the measuring chamber. The concealed liquid sample intake pipe has a bottom open end extending out of the lowest side of the liquid container and a top open end suspending in the measuring chamber above the upper limit liquid level.

    摘要翻译： 液体比重计包括限定测量室的液体容器。 指示器枢转地安装在测量室内部并且适于指示容纳在测量室中的液体样品的比重。 液体容器安装有隐藏的液体样品进样管，其适于拾取要测量的液体样品并将液体样品输送到测量室。 隐藏的液体样品进入管具有从液体容器的最下侧延伸的底部开口端和悬挂在测量室中的高于上限液位的顶部开口端。

    Differential float means and sensor means incorporating same
    2.
    发明授权
    Differential float means and sensor means incorporating same 失效
    差分浮动装置和结合其的传感器装置

    公开(公告)号：US5369395A

    公开(公告)日：1994-11-29

    申请号：US971988

    申请日：1993-02-19

    申请人： Clive G. Waller

    发明人： Clive G. Waller

    IPC分类号： F25B49/02 ,  F25B49/00 ,  G01F23/30 ,  G01F23/32 ,  G01F23/38 ,  G01N9/06 ,  G01N9/16 ,  G01N9/18 ,  G01N9/36 ,  G08B21/00

    CPC分类号： G01F23/32 ,  F25B49/005 ,  G01N9/16 ,  F25B2500/222 ,  G01N9/36

    摘要： A sensor (1) is provided for sensing the entrainment of a fluid of low specific gravity in a fluid of higher specific gravity, particularly the entrainment of refrigerant gas in refrigerant liquid. The sensor (1) is typically installed into a higher pressure liquid supply line (24) of a refrigeration system (26). The sensor (1) has a differential float (16) including a float member (54) pivoted about a pivot (56) in a chamber (14) coupled to the supply line (24). The float member (54) has a specific gravity greater than the specific gravity of both of the fluids in which it operates. However, the location of the pivot (56) intermediate of the length of the float member (54) gives a net specific gravity for the differential float (16) which is less than the specific gravity of one of the fluids. Hence, the differential float (16) can withstand a high pressure operation, say at 2MPa, and can operate as a float for detecting the presence or absence of the fluid of lower specific gravity in the fluid of high specific gravity. The differential float (16) can also be used as gauge snubber (20) or to replace refrigerant capillary control tubes.

    摘要翻译： PCT No.PCT / AU91 / 00386 Sec。 371日期：1993年2月19日 102（e）日期1993年2月19日PCT 1991年8月23日PCT PCT。 第WO92 / 03718号公报 日期：1992年3月5日。提供了一种传感器（1），用于感测低比重流体夹带在比重较大的流体中，特别是致冷剂气体夹在制冷剂液体中。 传感器（1）通常安装在制冷系统（26）的较高压力的液体供应管线（24）中。 传感器（1）具有差速浮子（16），其包括浮动构件（54），该浮动构件围绕联接到供应管线（24）的腔室（14）中的枢轴（56）枢转。 浮子构件（54）的比重大于其操作的两种流体的比重。 然而，浮子构件（54）的长度中间的枢轴（56）的位置给出了小于其中一个流体的比重的差速浮子（16）的净比重。 因此，差速浮子（16）可以承受高压操作，例如2MPa，并且可以作为浮子操作，用于检测高比重流体中比重较低的流体的存在或不存在。 差速浮子（16）也可用作量规缓冲器（20）或替代制冷剂毛细管控制管。

    albersheim
    9.
    发明授权
    albersheim 失效

    公开(公告)号：US1689658A

    公开(公告)日：1928-10-30

    申请号：US1689658D

    IPC分类号： G01N9/16

    CPC分类号： G01N9/16

    Method and apparatus for using a gas density sensor to measure and control gas mixture composition
    10.
    发明授权
    Method and apparatus for using a gas density sensor to measure and control gas mixture composition 有权

    公开(公告)号：US10928287B2

    公开(公告)日：2021-02-23

    申请号：US16100073

    申请日：2018-08-09

    申请人： Air Products and Chemicals, Inc.

    发明人： Liang He ,  Ranajit Ghosh ,  Donald James Bowe ,  Reed Jacob Hendershot

    IPC分类号： G01N9/16 ,  G01N9/36 ,  B01F15/00 ,  G01G17/04 ,  G05D11/13 ,  G01N9/26

    摘要： An apparatus for measuring the composition of a gas mixture containing known components, including a first gas density sensor configured and arranged to measure the density of a first mixture made by combining a gaseous first component and a gaseous second component; a second gas density sensor configured and arranged to measure the density of a second mixture made by combining the first mixture with a gaseous third component; and a processor programmed to determined based on data from the first gas density sensor the relative compositions of the first component and the second component in the first mixture, and to determine based on the data from the second gas density sensor the relative compositions of the first mixture and the third component in the second mixture, and thus to determine the relative compositions of the first component, the second component, and the third component in the second mixture.