公开(公告)号：EP0250776B1

公开(公告)日：1992-06-10

申请号：EP87106434.1

申请日：1984-06-29

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Brooks, Peter Leonard ,  Reeder, Larry Russell ,  Reed, James Patrick ,  Tolles, Thomas Winton ,  Masia, Michael

IPC分类号： G01R31/08 ,  G01M3/18

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

公开(公告)号：EP0133748A1

公开(公告)日：1985-03-06

申请号：EP84304502.2

申请日：1984-06-29

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Masia, Michael ,  Reed, James Patrick ,  Brooks, Peter Leonard ,  Tolles, Thomas Winton ,  Reeder, Larry Russell

IPC分类号： G01R31/08 ,  G01M3/18

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

摘要： Method and apparatus for detecting and obtaining information about (particularly locating) an event (E), i.e. a change in a variable, for example a liquid leak. In a preferred embodiment, two conductors (11,12) follow an elongate path and are connected to each other through a power source, preferably a constant current source (15). In the absence of an event, the two conductors (11, 12) are electrically insulated from each other at all points along the path. When an event (E) occurs, the two conductors (11, 12) become electrically connected at a connection point at which the event occurs, thus completing a test circuit in which a current of known size then flows. When using a constant current source (15), the size of the current does not depend on the resistance of the connection. One of the conductors is a locating member having known impedance characteristics along its length, and by measuring the voltage drop between the connection point and one end of the locating member, the location of the event can be calculated. The voltage drop can conveniently be measured by means of a third conductor which connects, via a high impedance a voltmeter (14), the ends of the locating member.

摘要翻译： 用于检测的方法和设备和获取有关（尤其是定位）信息的事件（E），即 在一个变量中的变化，对于实施例的液体泄漏。 在优选实施例中，两个导体（11,12）按照伸长的路径和通过一个功率源，优选的恒流源（15）被连接到彼此。 在不存在事件时，两个导体（11，12）彼此在沿着该路径的所有点。当到事件（E）的情况发生时，两个导体（11，12）在连接变为电连接的电绝缘 点在该事件发生的，从而完成一个测试电路，其中将已知大小的电流然后流。 当使用恒定电流源（15），该电流的大小不依赖于连接的电阻。 导体之一是具有已知的阻抗特性沿其长度，并且通过测量的连接点和所述定位部件的一端之间的电压降一个定位构件，该事件的位置可被计算。 上的电压降可以通过其连接的第三导体来方便地测量，经由高阻抗伏特计（14），所述定位构件的端部。

公开(公告)号：EP0122785A2

公开(公告)日：1984-10-24

申请号：EP84302519.8

申请日：1984-04-13

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Curtis, Jeff Christian ,  Nayak, Vidya Jnaneshwar ,  Reed, James Patrick

IPC分类号： C23F13/00

CPC分类号： C23F13/02

摘要： Anodes suitable for impressed current systems for corrosion prevention, and having an electrochemically active outer surface comprising a first element which is composed of a conductive polymer, and a plurality of second elements, preferably carbon or graphic fibers, which are partially embedded in the second element and which are electrochemically more active than the first element.

公开(公告)号：EP0253085A1

公开(公告)日：1988-01-20

申请号：EP87106433.3

申请日：1984-06-29

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Brooks, Peter Leonard ,  Reeder, Larry Russell ,  Reed, James Patrick ,  Tolles, Thomas Winton ,  Masia, Michael

IPC分类号： G01R31/08 ,  G01M3/18

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

摘要： Method and apparatus for detecting and obtaining information about (particularly locating) an event (E), i.e. a change in a variable, for example a liquid leak. in a preferred embodiment, two conductors (11, 12) follow an elongate path and are connected to each other through a power source, preferably a constant current source (15). In the absence of an event, the two conductors (11, 12) are electrically insulated from each other at all points along the path. When an event (E) occurs, the two conductors (11, 12) become electrically connected at a connection point at which the event occurs, thus completing a test circuit in which a current of known size then flows. When using a constant current source (15), the size of the current does not depend on the resistance of the connection. One of the conductors is a locating member having known impedance characteristics along its length, and by measuring the voltage drop between the connection point and one end of the locating member, the location of the event can be calculated. The voltage drop can conveniently be measured by means of a third conductor which connects, via a high impedance voltmeter (14), the ends of the locating member.

摘要翻译： 用于检测的方法和设备和获取有关（尤其是定位）信息的事件（E），即 在一个变量中的变化，对于实施例的液体泄漏。 在优选实施例中，两个导体（11，12）按照伸长路径上，并通过一个动力源，优选的恒流源（15）被连接到彼此。 在不存在事件时，两个导体（11，12）彼此在沿着该路径的所有点。当到事件（E）的情况发生时，两个导体（11，12）在连接变为电连接的电绝缘 点在该事件发生的，从而完成一个测试电路，其中将已知大小的电流然后流。 当使用恒定电流源（15），该电流的大小不依赖于连接的电阻。 导体之一是具有已知的阻抗特性沿其长度，并且通过测量的连接点和所述定位部件的一端之间的电压降一个定位构件，该事件的位置可被计算。 上的电压降可以通过其连接的第三导体来方便地测量，经由高阻抗电压表（14），所述定位构件的端部。

公开(公告)号：EP0250776A1

公开(公告)日：1988-01-07

申请号：EP87106434.1

申请日：1984-06-29

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Brooks, Peter Leonard ,  Reeder, Larry Russell ,  Reed, James Patrick ,  Tolles, Thomas Winton ,  Masia, Michael

IPC分类号： G01R31/08 ,  G01M3/18

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

摘要： method and apparatus for detecting and obtaining information about (particularly locating) an event (E), i.e. a change in a variable, for example a liquid leak. In a preferred embodiment, two conductors (11,12) follow an elongate path and are connected to each other through a power source, preferably a constant current source (15). In the absence of an event, the two conductors (11,12) are electrically insulated from each other at all points along the path. When an event (E) occurs, the two conductors (11,12) become electrically connected at a connection point at which the event occurs, thus completig a test circuit in which a current of known size then flows. When using a constant current source (15), the size of the current does not depend on the resistance of the connection. One of the conductors is a locating member having known impedance characteristics along its length, and by measuring the voltage drop between the connection point and one end of the locating member, the location of the event can be calculated. The voltage drop can conveniently be measured by means of a third conductor which connects, via a high impedance voltmeter (14), the ends of the locating member.

摘要翻译： 用于检测的方法和设备和获取有关（尤其是定位）信息的事件（E），即 在一个变量中的变化，对于实施例的液体泄漏。 在优选实施例中，两个导体（11,12）按照伸长的路径和通过一个功率源，优选的恒流源（15）被连接到彼此。 在不存在事件时，两个导体（11,12）从海誓山盟在沿路径的所有点电绝缘。当到事件（E）的情况发生时，两个导体（11,12）变为电在一个连接而连接 点在该事件发生的，从而completig测试电路，其中将已知大小的电流然后流。 当使用恒定电流源（15），该电流的大小不依赖于连接的电阻。 导体之一是具有已知的阻抗特性沿其长度，并且通过测量的连接点和所述定位部件的一端之间的电压降一个定位构件，该事件的位置可被计算。 上的电压降可以通过其连接的第三导体来方便地测量，经由高阻抗电压表（14），所述定位构件的端部。

公开(公告)号：EP0133748B1

公开(公告)日：1989-03-15

申请号：EP84304502.2

申请日：1984-06-29

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Masia, Michael ,  Reed, James Patrick ,  Brooks, Peter Leonard ,  Tolles, Thomas Winton ,  Reeder, Larry Russell

IPC分类号： G01R31/08 ,  G01M3/18

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

公开(公告)号：EP0122785B1

公开(公告)日：1988-11-02

申请号：EP84302519.8

申请日：1984-04-13

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Curtis, Jeff Christian ,  Nayak, Vidya Jnaneshwar ,  Reed, James Patrick

IPC分类号： C23F13/00

CPC分类号： C23F13/02

公开(公告)号：EP0160440A1

公开(公告)日：1985-11-06

申请号：EP85302557.5

申请日：1985-04-11

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Mascia, Michael ,  Reed, James Patrick

IPC分类号： G01R31/08

CPC分类号： G01R31/08

摘要： Method and apparatus for detecting and obtaining information about (particularly locating) an event, i.e. a change in a variable. In a preferred embodiment, three conductors follow an elongate path. Two of them (called the locating member (11) and the source member (12) are connected to each other at each end of the path and to a power source (15) thus forming a reference circuit in which a current of known size flows. The locating member (11) has known impedance characteristics along its length, the third conductor called the return member (16) is connected to one end of the locating member through a voltage-measuring device (14), but is otherwise insulated from the locating member (11) and the source member (12). When the event occurs, a connection (E) of known resistance is made between the locating member (11) and the return member (12). The voltage-measuring device (14) is then used to measure the voltage drop between the connection point and one end of the locating member (11), and the location of the event can then be calculated.

摘要翻译： 用于检测和获取有关（尤其是定位）至事件信息，即方法和装置 在一个变量中的变化。 在优选的实施方式三个导体遵循伸长路径，其中两个（称为定位构件（11）和源极部件（12）在路径的每个端部和到电源（15连接到彼此），从而 形成其中已知大小的电流流过。该定位件（11）具有已知的阻抗特性沿其长度的参考电路，所述第三导体称为返回构件（16）通过电压 - 连接到所述定位部件的一端 测量装置（14），但以其他方式从定位构件（11）和源极构件（12），当发生事件时，已知的电阻的连接（e）的定位构件（11）和所述返回之间进行绝缘 构件（12），电压测量装置（14）然后被用来测量的连接点和所述定位构件（11）的一个端部之间的电压降，然后将事件的位置可被计算。