公开(公告)号：US06734657B2

公开(公告)日：2004-05-11

申请号：US09754116

申请日：2001-01-05

申请人： Klaus Bohnert ,  Jürgen Nehring

发明人： Klaus Bohnert ,  Jürgen Nehring

IPC分类号： G01R3100

CPC分类号： G01R15/24

摘要： In a fiber optic current sensor having a coiled sensor fiber (1) which encloses a current conductor (S), and at least one phase delay element (4, 5) adjoining the sensor fiber (1), the at least one phase delay element (4, 5) has a phase delay with a temperature dependence such that it at least approximately compensates for a temperature dependence of a Verdet's constant (V) of the sensor fiber (1). It is thereby possible to achieve an at least approximately temperature-independent sensor signal.

摘要翻译： 在具有包围电流导体（S）的线圈传感器光纤（1）和邻近传感器光纤（1）的至少一个相位延迟元件（4,5）的光纤电流传感器中，至少一个相位延迟元件 （4,5）具有温度依赖性的相位延迟，使得其至少近似地补偿传感器光纤（1）的Verdet常数（V）的温度依赖性。 从而可以实现至少大致与温度无关的传感器信号。

公开(公告)号：US08441249B2

公开(公告)日：2013-05-14

申请号：US12940684

申请日：2010-11-05

申请人： Klaus Bohnert ,  Stephan Wildermuth ,  Hubert Braendle

发明人： Klaus Bohnert ,  Stephan Wildermuth ,  Hubert Braendle

IPC分类号： G01R33/02

CPC分类号： G01R15/241

摘要： Two transversely poled fibers are disclosed which can be wound around a holder with their poling directions being anti-parallel. A coupling exchanges the polarization directions of the modes of the fibers. Thermally and mechanically caused birefringence changes can thereby be substantially cancelled, while electrical field induced birefringence changes can be added, to provide a more robust high voltage measuring device.

摘要翻译： 公开了两个横向极化纤维，其可以卷绕在保持器上，其极化方向是反平行的。 耦合交换纤维的模式的偏振方向。 因此，可以基本上消除热和机械引起的双折射变化，同时可以增加电场诱导的双折射变化，以提供更鲁棒的高电压测量装置。

公开(公告)号：US20100108870A1

公开(公告)日：2010-05-06

申请号：US12685372

申请日：2010-01-11

申请人： Axel KRAMER ,  Frank Kassubek ,  Klaus Bohnert ,  Hubert Braendle

发明人： Axel KRAMER ,  Frank Kassubek ,  Klaus Bohnert ,  Hubert Braendle

IPC分类号： G01L7/00 ,  G01J1/00

CPC分类号： G01L11/02 ,  G01L1/24

摘要： A pressure sensor is disclosed with at least one pressure sensing element, the pressure induced changes in the optical properties of which are evaluated by illumination with at least one light source. The pressure sensor can include at least two semiconductor-based pressure sensing elements located in individual pressure chambers, which sensing elements are located essentially adjacent to each other. The sensing elements can be irradiated with the same light source, wherein the light transmitted through the sensing elements is detected using at least two corresponding detectors, and wherein the differential pressure in the two pressure chambers is evaluated based on the output of these detectors.

摘要翻译： 公开了具有至少一个压力传感元件的压力传感器，通过用至少一个光源的照明来评估其光学性质的压力感应变化。 压力传感器可以包括位于各个压力室中的至少两个基于半导体的压力感测元件，这些感测元件基本上彼此相邻地定位。 感测元件可以用相同的光源照射，其中使用至少两个相应的检测器检测透过感测元件的光，并且其中基于这些检测器的输出来评估两个压力室中的压差。

公开(公告)号：US20090085337A1

公开(公告)日：2009-04-02

申请号：US12240111

申请日：2008-09-29

申请人： Josip Vlahovic ,  Ali Oezkan ,  Klaus Bohnert

发明人： Josip Vlahovic ,  Ali Oezkan ,  Klaus Bohnert

IPC分类号： B60R21/13

CPC分类号： B62D25/08 ,  B60R2021/135

摘要： A rollover protection device is disposed behind the vehicle seats of a motor vehicle, in particular a convertible with a convertible top, and has at least one rollover protection cassette containing a rollbar. It is important here that the at least one rollover protection cassette or a housing of the same is a supporting component of a stiffening support which is of multi-part construction and extends in the transverse direction of the vehicle.

摘要翻译： 翻车保护装置设置在机动车辆的车辆座椅后面，特别是具有可转换顶部的敞篷车，并且具有至少一个包含滚动杆的翻转保护盒。 重要的是，至少一个翻车保护盒或其壳体是加强支撑件的支撑部件，其是多部分构造并且在车辆的横向方向上延伸。

公开(公告)号：US20090039866A1

公开(公告)日：2009-02-12

申请号：US12256289

申请日：2008-10-22

申请人： Klaus Bohnert ,  Andreas Frank ,  Hubert Brandle

发明人： Klaus Bohnert ,  Andreas Frank ,  Hubert Brandle

IPC分类号： G01R13/40

CPC分类号： G01R15/246

摘要： The current in a conductor is measured by exploiting the Faraday effect in a sensing fiber. The light returning from the sensing fiber is split into at least two parts, at least one of which is analyzed by a first circular analyzer for generating a first signal. A second part may e.g. be analyzed by a second circular analyzer, and a third part may be analyzed by a linear analyzer. By combining the signals obtained in this way, the current induced phase delay in the returning light can be measured efficiently and accurately.

摘要翻译： 导体中的电流通过利用传感光纤中的法拉第效应来测量。 从感测光纤返回的光被分成至少两个部分，其中至少一个由第一圆形分析器分析，用于产生第一信号。 第二部分可以例如。 由第二个圆形分析仪分析，第三个部分可以用线性分析仪进行分析。 通过组合以这种方式获得的信号，可以有效和准确地测量返回光中的电流感应相位延迟。

公开(公告)号：US07450792B2

公开(公告)日：2008-11-11

申请号：US11594170

申请日：2006-11-08

申请人： Klaus Bohnert ,  Philippe Gabus ,  Juergen Nehring ,  Hubert Braendle

发明人： Klaus Bohnert ,  Philippe Gabus ,  Juergen Nehring ,  Hubert Braendle

IPC分类号： G02B6/00

CPC分类号： G01R15/247 ,  G01R35/005

摘要： A fiber-optic sensor head is disclosed for an optical current or magnetic-field sensor which can have an optical fiber which includes a magnetooptically active sensor fiber which is optically connected to at least one polarization-defining element. The sensor fiber can be arranged in a magnetic field to be measured or around a conductor carrying current to be measured and can be in the form of a coil, with the coil defining a coil plane (A) with a surface normal (Ns), and with the at least one polarization-defining element having a marked axis (f). The sensor head can be flexible in the area of the sensor fiber, and an adjustment means can be provided for adjustment of a predeterminable angle β between the marked axis,(f) and the surface normal (Ns) or for adjustment of predeterminable angles β, β′ between the marked axes (f) and the surface normal (Ns).

摘要翻译： 公开了一种用于光电流或磁场传感器的光纤传感器头，其可以具有包括与至少一个偏振界定元件光学连接的磁光活性传感器光纤的光纤。 传感器光纤可以被布置在待测量的磁场中或围绕承载待测量电流的导体，并且可以是线圈的形式，线圈限定具有表面正常的线圈平面（A）（N

公开(公告)号：US07046867B2

公开(公告)日：2006-05-16

申请号：US10777403

申请日：2004-02-13

申请人： Klaus Bohnert ,  Philippe Gabus ,  Hubert Brandle

发明人： Klaus Bohnert ,  Philippe Gabus ,  Hubert Brandle

IPC分类号： G02B6/00

CPC分类号： G01R15/247

摘要： The invention relates to a fiberoptic current or magnetic field sensor having a plurality of sensor heads, and to a corresponding measurement method. The sensor has a light source: N≧2 sensor heads; at least one phase modulation unit; a detector; a control and evaluation unit. The at least one phase modulation unit is connected to at least one of the sensor heads. Lightwaves can be differentially phase-modulated in a non-reciprocal fashion by means of the at least one phase modulation unit. Modulation amplitudes φ0,n and modulation frequencies vn are selected as a function of modulation-relevant optical path lengths ln.

摘要翻译： 本发明涉及具有多个传感器头的光纤电流或磁场传感器，以及相应的测量方法。 传感器有一个光源：N> = 2个传感头; 至少一个相位调制单元; 检测器 一个控制和评估单位。 至少一个相位调制单元连接到至少一个传感器头。 光波可以通过至少一个相位调制单元以不可逆的方式进行差分相位调制。 作为调制相关光程长度l N n N的函数，选择调制幅度Φ0，n N和调制频率v N n N。

公开(公告)号：US20050088662A1

公开(公告)日：2005-04-28

申请号：US10922944

申请日：2004-08-23

申请人： Klaus Bohnert ,  Philippe Gabus ,  Hubert Brandle

发明人： Klaus Bohnert ,  Philippe Gabus ,  Hubert Brandle

IPC分类号： G01R15/24 ,  G01R33/032 ,  G01B9/02

CPC分类号： G01R15/246 ,  G01R33/032

摘要： The fiber-optic sensor head (2) for a current or magnetic field sensor comprises an optical fiber which contains a magnetooptically active sensor fiber (3) and at least one polarization-maintaining supply fiber (5), which are optically connected, with the sensor fiber (3) having its fiber protective sheath removed. The sensor head (2) furthermore contains a capillary (6), in which at least the sensor fiber (3) is arranged. Furthermore, the sensor head (2) can be bent in the area of the sensor fiber (3), and a friction reducing means (7) is provided in the capillary (6), in order to reduce the friction between the sensor fiber (3) and the capillary (6). The friction reducing means (7) is advantageously an oil or a dry lubricating means (7). The capillary (6) is advantageously encased by a capillary casing (8). The sensor (2) allows very largely temperature-dependent measurements, is easy to install and allows measurements on large cross-section conductors.

摘要翻译： 用于电流或磁场传感器的光纤传感器头（2）包括光纤，该光纤包含磁光有源传感器光纤（3）和至少一个光学连接的偏振保持光纤（5） 传感器光纤（3），其光纤保护套被去除。 传感器头（2）还包含毛细管（6），其中布置有至少传感器光纤（3）。 此外，传感器头（2）可以在传感器光纤（3）的区域中弯曲，并且在毛细管（6）中设置有摩擦减小装置（7），以便减少传感器光纤（ 3）和毛细管（6）。 减摩装置（7）有利地是油或干式润滑装置（7）。 毛细管（6）有利地由毛细管壳体（8）包围。 传感器（2）允许很大程度上依赖于温度的测量，易于安装并允许在大横截面导体上进行测量。

公开(公告)号：US6140810A

公开(公告)日：2000-10-31

申请号：US165648

申请日：1998-10-02

申请人： Klaus Bohnert ,  Hubert Brandle ,  Philippe Gabus ,  Jadran Kostovic ,  Jiri Talir

发明人： Klaus Bohnert ,  Hubert Brandle ,  Philippe Gabus ,  Jadran Kostovic ,  Jiri Talir

IPC分类号： G01R15/24 ,  G01R29/12

CPC分类号： G01R15/241

摘要： The subject matter of the present invention is a fiber-optic outdoor high-voltage sensor 1. The known sensor principle is based on the fact that a piezoelectric quartz cylinder 3 wound with a glass fiber 4a effects a voltage-proportional fiber strain which is measured interferometrically. According to the invention, a 420 kV outdoor sensor 1 is created by virtue of the fact that several quartz cylinders 3 and electrically conductive spacing elements 5 are arranged in an alternating fashion one behind another and are sealed in a silicone-shielded 17 insulating tube 16 by means of polyurethane 18 or silicone 21. Dividing the high voltage between several spaced, E-field integrating sensor elements 2 permits simple field control and a very high measuring accuracy. In addition, the fiber-optic voltage sensor 1 is distinguished by a low outlay on insulation, compactness and low weight, and can easily be scaled to other voltage levels and be effectively combined with optical current sensors 38.

摘要翻译： 本发明的主题是光纤室外高压传感器1.已知的传感器原理是基于以下事实：卷绕有玻璃纤维4a的压电石英气缸3实现测量的电压 - 比例纤维应变 干涉式 根据本发明，由于几个石英气缸3和导电间隔元件5以交替的方式彼此排列并被密封在硅树脂屏蔽17绝缘管16中的事实而产生420kV室外传感器1 通过聚氨酯18或硅树脂21.在几个间隔的E场积分传感器元件2之间划分高电压允许简单的场控制和非常高的测量精度。 此外，光纤电压传感器1的特征在于绝缘性，紧凑性和重量轻的低成本，并且可以容易地缩放到其他电压电平并且与光电流传感器38有效地组合。

公开(公告)号：US07891682B2

公开(公告)日：2011-02-22

申请号：US12264286

申请日：2008-11-04

申请人： Ali Oezkan ,  Oliver Moessinger ,  Thomas Hunn ,  Kay Lorenz ,  Klaus Bohnert ,  Marco Ujhasi

发明人： Ali Oezkan ,  Oliver Moessinger ,  Thomas Hunn ,  Kay Lorenz ,  Klaus Bohnert ,  Marco Ujhasi

IPC分类号： B60G7/02

CPC分类号： B62D21/11

摘要： A motor vehicle has a rear axle cross member, from which two diagonal struts project forward in a V-shape, which diagonal struts are connected with their front end in each case to a vehicle longitudinal member. Here, it is important that an annular, closed stiffening structure is provided behind the rear axle cross member as viewed in the direction of travel. The stiffening structure is supported with its front end on the rear axle cross member and with its rear end, via struts which project rearward in a V-shape, on rear vehicle longitudinal members.

摘要翻译： 机动车辆具有后桥横梁，两个对角支柱从该前桥向前突出为V形，每个情况下，该对角支柱与前端相连，并与车辆纵向构件连接。 这里，重要的是在行进方向观察时，在后桥横梁的后面设置环形的闭合的加强结构。 加强结构的前端支撑在后桥横向构件上，其后端通过支撑在V形后方的支柱支撑在后车辆纵向构件上。