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    Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors
    3.
    发明授权
    Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors 失效
    包括导电聚合物的细长传感器，以及使用这种传感器的方法和装置

    公开(公告)号：US5015958A

    公开(公告)日：1991-05-14

    申请号：US372179

    申请日：1989-06-27

    申请人： Michael Masia ,  James P. Reed ,  Robert S. Wasley ,  Paul D. Hauptly ,  Larry R. Reeder ,  Peter L. Brooks ,  Thomas W. Tolles ,  Louis M. Frank ,  Mauro Bonomi ,  Denis Wales ,  Ray F. Stewart ,  John Lahlouh ,  Laurence Welsh

    发明人： Michael Masia ,  James P. Reed ,  Robert S. Wasley ,  Paul D. Hauptly ,  Larry R. Reeder ,  Peter L. Brooks ,  Thomas W. Tolles ,  Louis M. Frank ,  Mauro Bonomi ,  Denis Wales ,  Ray F. Stewart ,  John Lahlouh ,  Laurence Welsh

    IPC分类号： G01M3/04 ,  G01M3/16 ,  G01M3/18 ,  G01R31/02 ,  G01R31/08 ,  G08B23/00 ,  G08B25/01

    CPC分类号： G01R31/08 ,  G01M3/045 ,  G01M3/165 ,  G01M3/18 ,  G01R31/024 ,  G01R31/083 ,  G08B23/00 ,  G08B25/018

    摘要： Detection of events, e.g. liquid leaks and other changes in varibles. The event causes two conductors to become electrically connected, and thus creating a system in which the connection point can be located by measuring the potential drop from one end of one of the conductors (called the locating member) to the connection point. Preferably a fixed current flows through the connection, so that the result is independent of the resistance of the connection. The locating member can be a continuous resistive wire, preferably coated with a conductive polymer; such a locating member can form part of a sensor cable in which the elongate components of the circuit are in a wrapped configuration, or part of a cable in which the conductors are separated by a member shaped to prevent capillary action of a liquid from connecting the conductors. Alternatively the locating member comprises a plurality of discrete resistors. Preferably the system is arranged so that the sensitivity of the system is not dependent on the location of the fault and/or is such that only connections within a certain range of resistance will activate the system. The voltage drop is preferably calculated by comparing it to the voltage drop over a resistor of known size. Particular event-sensitive connection means are preferably employed for the detection of hydrocarbons and for the detection of acids.

    摘要翻译： 检测事件，例如 液体泄漏等变化。 事件导致两个导体电连接，从而创建一个系统，其中可以通过测量从一个导体（称为定位构件）的一端到连接点的电位降来定位连接点。 优选地，固定电流流过连接，使得结果与连接的电阻无关。 定位构件可以是连续的电阻丝，优选地涂覆有导电聚合物; 这种定位构件可以形成传感器电缆的一部分，其中电路的细长部件处于缠绕构型或电缆的一部分，其中导体被成形的部件隔开，以防止液体的毛细作用连接 导体 或者，定位构件包括多个分立电阻器。 优选地，系统被布置为使得系统的灵敏度不依赖于故障的位置和/或使得仅在一定范围的电阻内的连接将激活系统。 优选通过将其与已知尺寸的电阻器上的电压降进行比较来计算电压降。 特别的事件敏感连接装置优选用于烃的检测和酸的检测。

    Devices for detecting and obtaining information about an event
    4.
    发明授权
    Devices for detecting and obtaining information about an event 失效
    用于检测和获取有关事件的信息的设备

    公开(公告)号：US4926165A

    公开(公告)日：1990-05-15

    申请号：US838725

    申请日：1986-03-11

    申请人： John Lahlouh ,  Ray F. Stewart ,  Robert S. Wasley ,  Paul D. Hauptly ,  Laurence M. Welsh

    发明人： John Lahlouh ,  Ray F. Stewart ,  Robert S. Wasley ,  Paul D. Hauptly ,  Laurence M. Welsh

    IPC分类号： G01M3/04 ,  G01M3/16

    CPC分类号： G01M3/045 ,  G01M3/165

    摘要： Devices for detecting and obtaining information about an event, for example the presence of a liquid, which comprise (1) a swellable member which swells upon occurrence of the event and (2) a restraining member which, when the swellable member swells, restricts movement of the swellable member and thus causes the impedance of the device to change. In a preferred embodiment the device comprises two elongate conductors helically wrapped around a support core, a swellable, conductive polymer member surrounding the conductors. Occurrence of an event causes the swellable material to swell and form a conductive bridge between the conductors.

    摘要翻译： 用于检测和获取关于事件的信息的装置，例如液体的存在，其包括（1）在发生事件时膨胀的可溶胀构件，以及（2）限制构件，当膨胀构件膨胀时，限制构件限制运动 并因此使装置的阻抗发生变化。 在优选实施例中，该装置包括两个细长导体，螺旋缠绕在支撑芯周围，这些导体围绕导体的可膨胀的导电聚合物构件。 发生事件导致溶胀材料膨胀并在导体之间形成导电桥。

    Sensors for detecting and locating fluids
    5.
    发明授权
    Sensors for detecting and locating fluids 失效
    用于检测和定位流体的传感器

    公开(公告)号：US5101657A

    公开(公告)日：1992-04-07

    申请号：US519975

    申请日：1990-05-07

    申请人： John Lahlouh ,  Ray F. Stewart ,  Robert S. Wasley ,  Paul D. Hauptly ,  Laurence M. Welsh

    发明人： John Lahlouh ,  Ray F. Stewart ,  Robert S. Wasley ,  Paul D. Hauptly ,  Laurence M. Welsh

    IPC分类号： G01M3/04 ,  G01M3/16 ,  G08B23/00

    CPC分类号： G01M3/045 ,  G01M3/165

    摘要： Devices for detecting and obtaining information about an event, for example the presence of a liquid, which comprise (1) a swellable member which swells upon occurrence of the event and (2) a restraining member which, when the swellable member swells, restricts movement of the swellable member and thus causes the impedance of the device to change. In a preferred embodiment the device comprises two elongate conductors helically wrapped around a support core, a swellable, conductive polymer member surrounding the conductors. Occurrence of an event causes the swellable material to swell and form a conductive bridge between the conductors.

    摘要翻译： 用于检测和获取关于事件的信息的装置，例如液体的存在，其包括（1）在发生事件时膨胀的可溶胀构件，以及（2）限制构件，当膨胀构件膨胀时，限制构件限制运动 并因此使装置的阻抗发生变化。 在优选实施例中，该装置包括两个细长导体，螺旋缠绕在支撑芯周围，这些导体围绕导体的可膨胀的导电聚合物构件。 发生事件导致溶胀材料膨胀并在导体之间形成导电桥。

    Sensor assembly for detecting multiple events and distinguishing between them
    6.
    发明授权
    Sensor assembly for detecting multiple events and distinguishing between them 失效
    用于检测多个事件并区分它们的传感器组件

    公开(公告)号：US4926129A

    公开(公告)日：1990-05-15

    申请号：US256874

    申请日：1988-10-12

    申请人： Robert S. Wasley ,  James C. Holmes

    发明人： Robert S. Wasley ,  James C. Holmes

    IPC分类号： G01M3/04 ,  G01M3/16

    CPC分类号： G01M3/045 ,  G01M3/165

    摘要： A sensing assembly suitable for detecting both a first event which involves the presence of an electrolyte and a second event which does not involve the presence of an electrolyte, and for distinguishing between them. The assembly comprises a first conductor and a second conductor which is electrically insulated from the first conductor in the absence of both first and second events but becomes electrically connected to the first conductor by either an ionic connection in the presence of a first event or an electronic connection in the presence of a second event. The assembly also comprises a sensing apparatus of determining whether the connection is ionic or electronic. The assembly is useful for detecting leaks of hydrocarbons, e.g. gasoline, and water in storage tanks.

    摘要翻译： 适用于检测涉及电解质存在的第一事件和不涉及电解质存在的第二事件以及用于区分电解质的传感组件。 组件包括第一导体和第二导体，其在不存在第一和第二事件的情况下与第一导体电绝缘，但是在第一事件或电子的存在下通过离子连接而与第一导体电连接 存在第二个事件时的连接。 组件还包括确定连接是离子还是电子的感测装置。 该组件可用于检测烃的泄漏，例如， 汽油和水在储罐中。