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。