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1. 发明公开

EP0590830A1 Inclination angle sensing 失效
标题翻译： Neigungswinkelbestimmung。
公开(公告)号：EP0590830A1
公开(公告)日：1994-04-06
申请号：EP93307306.6
申请日：1993-09-16
申请人： RADIODETECTION LIMITED
发明人： Hore, Donald Lionel
IPC分类号： G01C9/06 , G01C9/20 , G01D5/22
CPC分类号： G01C9/06 , G01C9/20 , G01D5/2216
摘要： An elongate vessel (1), preferably cylindrical, is partially filled with a conductive and/or ferromagnetic fluid (2). At least two coils (3) are wound on the vessel in longitudinally different regions so that tilting the vessel varies the amount of the fluid inside the coils differently. This affects their inductances. The variation in inductances is monitored, directly or indirectly, e.g. by applying an AC signal to the coils and monitoring the voltage drops across them. This provides an electrical output related to the inclination of the sensor's axis. It is unaffected by rotation about the axis. Thus the sensor can be used to monitor the orientation of the axis of a drilling tool, e.g. a mole (100), which rotates about its axis.
摘要翻译：细长容器（1），优选圆柱形，部分地填充有导电和/或铁磁流体（2）。至少两个线圈（3）在纵向不同的区域中缠绕在容器上，使得容器倾斜不同地改变线圈内的流体的量。这会影响其电感。电感的变化被直接或间接地监测，例如，通过向线圈施加AC信号并监测它们之间的电压降。这提供了与传感器轴的倾斜度相关的电输出。它不受轴的旋转的影响。因此，传感器可用于监测钻具的轴线的取向，例如，一个绕其轴旋转的摩擦（100）。

2. 发明授权

EP0732599B1 Inductive transmitters for conductor location 失效
标题翻译：感应发射器用于定位导体
公开(公告)号：EP0732599B1
公开(公告)日：2002-08-14
申请号：EP96301822.1
申请日：1996-03-18
申请人： RADIODETECTION LIMITED
发明人： Hopkin, Alan John , Hore, Donald Lionel
IPC分类号： G01V3/08
CPC分类号： G01V3/10

3. 发明公开

EP0732599A3 Inductive transmitters for conductor location 失效
标题翻译：感应发射器用于定位导体
公开(公告)号：EP0732599A3
公开(公告)日：1997-11-26
申请号：EP96301822.1
申请日：1996-03-18
申请人： RADIODETECTION LIMITED
发明人： Hopkin, Alan John , Hore, Donald Lionel
IPC分类号： G01V3/08
CPC分类号： G01V3/10
摘要： Two vertical, parallel, horizontally spaced signal coils (1) are connected in series but in opposite phase across an a.c. source. Thus a buried conductor (3) located centrally beneath the coils (1) experiences an alternating magnetic field whose strength is due to the addition of the fields induced by the two coils (1). The field strength may be further enhanced by one or more of: providing a ferromagnetic flux diverter (4) between the upper ends of the coils; placing a conductive nonmagnetic screen (10) between them; connecting a tuning capacitor (6) in parallel with the coils (1); or providing a tuning circuit having series-connected secondary coils (7) which are flux-linked to respective signal coils (1) and are in parallel with a capacitor (6'). There may be a switch arrangement (5) for switching the signal coils to in-phase connection, for use when they are oriented horizontally.

4. 发明公开

EP0732599A2 Inductive transmitters for conductor location 失效
标题翻译： Induktiver Sender zur Leiterlokalisierung
公开(公告)号：EP0732599A2
公开(公告)日：1996-09-18
申请号：EP96301822.1
申请日：1996-03-18
申请人： RADIODETECTION LIMITED
发明人： Hopkin, Alan John , Hore, Donald Lionel
IPC分类号： G01V3/08
CPC分类号： G01V3/10
摘要： Two vertical, parallel, horizontally spaced signal coils (1) are connected in series but in opposite phase across an a.c. source. Thus a buried conductor (3) located centrally beneath the coils (1) experiences an alternating magnetic field whose strength is due to the addition of the fields induced by the two coils (1). The field strength may be further enhanced by one or more of: providing a ferromagnetic flux diverter (4) between the upper ends of the coils; placing a conductive nonmagnetic screen (10) between them; connecting a tuning capacitor (6) in parallel with the coils (1); or providing a tuning circuit having series-connected secondary coils (7) which are flux-linked to respective signal coils (1) and are in parallel with a capacitor (6'). There may be a switch arrangement (5) for switching the signal coils to in-phase connection, for use when they are oriented horizontally.
摘要翻译：两个垂直的，平行的，水平间隔的信号线圈（1）串联连接，但是跨过一个交流相互相连。资源。因此，位于线圈（1）下方的埋地导体（3）经历交变磁场，其强度是由于两个线圈（1）引起的场的相加。场强可以通过以下中的一个或多个进一步增强：在线圈的上端之间提供铁磁通量分流器（4）; 在它们之间放置导电非磁性屏幕（10）; 将调谐电容器（6）与所述线圈（1）并联连接; 或提供具有串联连接的次级线圈（7）的调谐电路，它们与各个信号线圈（1）通量耦合并且与电容器（6'）并联。可以存在用于将信号线圈切换成同相连接的开关装置（5），用于水平定向时使用。

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