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1. 发明授权

US08629672B2 Generator circuit breaker with fiber-optic current sensor 有权
标题翻译：具有光纤电流传感器的发电机断路器
公开(公告)号：US08629672B2
公开(公告)日：2014-01-14
申请号：US13016693
申请日：2011-01-28
申请人： Moritz Hochlehnert , Thomas Lorek , Ahmed Zekhnini , Andreas Frank , Klaus Bohnert
发明人： Moritz Hochlehnert , Thomas Lorek , Ahmed Zekhnini , Andreas Frank , Klaus Bohnert
IPC分类号： G01R31/00
CPC分类号： H01H33/027 , G01R15/246 , H01H33/002
摘要： The current in a generator circuit breaker is measured using the Faraday effect of an optical sensing fiber looped around the breaker's conductor. The sensing fiber is arranged in a sensing strip, which can be mounted to the enclosure of the generator circuit breaker or to the conductor. Exemplary embodiments can have a wide measuring range and can easily be fitted to new or existing generator circuit breakers.
摘要翻译：发电机断路器中的电流使用环绕断路器导体的光学感测光纤的法拉第效应来测量。感测光纤布置在感测条中，其可以安装到发电机断路器的外壳或导体上。示例性实施例可以具有宽的测量范围并且可以容易地安装到新的或现有的发电机断路器。

2. 发明申请

US20110128655A1 GENERATOR CIRCUIT BREAKER WITH FIBER-OPTIC CURRENT SENSOR 有权
标题翻译：具有光纤电流传感器的发电机断路器
公开(公告)号：US20110128655A1
公开(公告)日：2011-06-02
申请号：US13016693
申请日：2011-01-28
申请人： Moritz HOCHLEHNERT , Thomas Lorek , Ahmed Zekhnini , Andreas Frank , Klaus Bohnert
发明人： Moritz HOCHLEHNERT , Thomas Lorek , Ahmed Zekhnini , Andreas Frank , Klaus Bohnert
IPC分类号： H02H7/06
CPC分类号： H01H33/027 , G01R15/246 , H01H33/002
摘要： The current in a generator circuit breaker is measured using the Faraday effect of an optical sensing fiber looped around the breaker's conductor. The sensing fiber is arranged in a sensing strip, which can be mounted to the enclosure of the generator circuit breaker or to the conductor. Exemplary embodiments can have a wide measuring range and can easily be fitted to new or existing generator circuit breakers.
摘要翻译：发电机断路器中的电流使用环绕断路器导体的光学感测光纤的法拉第效应来测量。感测光纤布置在感测条中，其可以安装到发电机断路器的外壳或导体上。示例性实施例可以具有宽的测量范围并且可以容易地安装到新的或现有的发电机断路器。

3. 发明申请

US20090039866A1 Fiber-Optic Current Sensor With Polarimetric Detection Scheme 有权
标题翻译：具有偏振检测方案的光纤电流传感器
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。

4. 发明申请

US20090290165A1 OPTICAL HIGH VOLTAGE SENSOR 有权
标题翻译：光电高压传感器
公开(公告)号：US20090290165A1
公开(公告)日：2009-11-26
申请号：US12488779
申请日：2009-06-22
申请人： Klaus Bohnert , Andreas Frank , Hubert Brandle
发明人： Klaus Bohnert , Andreas Frank , Hubert Brandle
IPC分类号： G01B9/02 , C03B37/023 , G01N23/00
CPC分类号： G01R15/242 , G01R15/247
摘要： An electro-optical high-voltage sensor includes a waveguiding sensing fiber of an electro-optical material. The electrical field of the voltage to be measured is substantially parallel to the longitudinal axis of the sensing fiber. The sensing fiber carries two orthogonally polarized light waves, with the applied field affecting the birefringence between the waves. Using an electro-optical waveguiding fiber in this configuration allows the voltage between two widely spaced points to be accurately measured.
摘要翻译：电光高压传感器包括电光材料的波导感测光纤。要测量的电压的电场基本上平行于感测光纤的纵向轴线。感测光纤承载两个正交偏振光波，其中施加的场影响波之间的双折射。在这种结构中使用电光波导纤维可以精确地测量两个广泛间隔的点之间的电压。

5. 发明授权

US06876188B2 Electro-optical voltage sensor for high voltages 有权
标题翻译：用于高电压的电光电压传感器
公开(公告)号：US06876188B2
公开(公告)日：2005-04-05
申请号：US10805517
申请日：2004-03-22
申请人： Klaus Bohnert , Andreas Frank , Hubert Brändle
发明人： Klaus Bohnert , Andreas Frank , Hubert Brändle
IPC分类号： G01R15/24 , G01R19/00 , G01R31/00
CPC分类号： G01R15/242 , G01R15/247 , G01R19/0084
摘要： The voltage sensor for measurement of a voltage V, which is present between two electrodes (3, 4) and generates an electric field E, comprises at least two layers (1a, 2a) made of electro-optically active material and being arranged along a light path (5). Through the layers there passes a light beam, the phase and/or state of polarization of which is influenced on account of the electro-optical effect. The orientation of the electro-optically active layers (1a, 2a) relative to the light path and the electric field E is chosen in such a way, that the influencing of the light (5) in the second layer (2a) counteracts the influencing of the light (5) in the first layer (1a). In this way, it is possible to realize a sensor with a high half wave voltage, so that high voltages V can be measured unambiguously. A plurality of first and second electro-optically active layers are advantageously arranged between the electrodes (3, 4).
摘要翻译：用于测量存在于两个电极（3,4）之间并产生电场E的电压V的电压传感器包括至少两层由电光活性材料制成的层（1a，2a），沿着光路（5）。通过这些层，通过光束，由于电光效应影响其相位和/或其极化状态。以这样的方式选择电光活性层（1a，2a）相对于光路和电场E的取向，使得第二层（2a）中的光（5）的影响抵消影响的第一层（1a）中的光（5）。以这种方式，可以实现具有高半波电压的传感器，从而可以明确地测量高电压V. 多个第一和第二电光活性层有利地布置在电极（3,4）之间。

6. 发明授权

US08718418B2 High voltage AC/DC or DC/AC converter station with fiber-optic current sensor 有权
标题翻译：具有光纤电流传感器的高压AC / DC或DC / AC转换站
公开(公告)号：US08718418B2
公开(公告)日：2014-05-06
申请号：US13014969
申请日：2011-01-27
申请人： Juergen Haefner , Andreas Frank , Klaus Bohnert
发明人： Juergen Haefner , Andreas Frank , Klaus Bohnert
IPC分类号： G02B6/00
CPC分类号： H02B7/06 , G01R15/246 , H01B17/26 , H02B13/0356 , H02B13/0358
摘要： DC current in a high voltage AC/DC or DC/AC converter station can be measured via the Faraday effect in one or more loops of an optical sensing fiber located at the base of a bushing extending through a wall of the hall. This arrangement can exploit the base of the bushing being at ground potential, which can simplify mounting work and maintenance.
摘要翻译：高压AC / DC或DC / AC转换站中的直流电流可以通过法拉第效应在位于穿过大厅壁的衬套底部的光学感测纤维的一个或多个环路中测量。这种布置可以利用衬套的基部处于地电位，这可以简化安装工作和维护。

7. 发明授权

US08461822B2 Temperature compensated fiber optic current or magnetic field sensor with insensitivity to variations in sensor parameters 有权
标题翻译：温度补偿光纤电流或磁场传感器，对传感器参数的变化不敏感
公开(公告)号：US08461822B2
公开(公告)日：2013-06-11
申请号：US12889775
申请日：2010-09-24
申请人： Robert Wueest , Andreas Frank , Klaus Bohnert
发明人： Robert Wueest , Andreas Frank , Klaus Bohnert
IPC分类号： G01R31/00
CPC分类号： G01R15/246 , G01R33/0322
摘要： A fiber optic current or magnetic field sensor uses a sensing fiber in a coil for measuring a current or a magnetic field and has a retarder for converting between linearly polarized light and elliptically polarized light. The retardation of the retarder, its temperature dependence as well as its azimuth angle in respect to the plane of the fiber coil are optimized in dependence of the birefringence in the sensing fiber in order to minimize the influence of temperature variations and manufacturing tolerances on the overall scale factor of the sensor.
摘要翻译：光纤电流或磁场传感器使用线圈中的感测光纤来测量电流或磁场，并且具有用于在线偏振光和椭圆偏振光之间转换的延迟器。延迟器的延迟，其温度依赖性以及相对于纤维线圈的平面的方位角根据感测光纤中的双折射进行优化，以便最小化温度变化和制造公差对整体的影响传感器的比例因子。

8. 发明授权

US08233754B2 Optical high voltage sensor 有权
标题翻译：光电高压传感器
公开(公告)号：US08233754B2
公开(公告)日：2012-07-31
申请号：US12488779
申请日：2009-06-22
申请人： Klaus Bohnert , Andreas Frank , Hubert Brändle
发明人： Klaus Bohnert , Andreas Frank , Hubert Brändle
IPC分类号： G02B6/00 , G02B6/02
CPC分类号： G01R15/242 , G01R15/247
摘要： An electro-optical high-voltage sensor includes a waveguiding sensing fiber of an electro-optical material. The electrical field of the voltage to be measured is substantially parallel to the longitudinal axis of the sensing fiber. The sensing fiber carries two orthogonally polarized light waves, with the applied field affecting the birefringence between the waves. Using an electro-optical waveguiding fiber in this configuration allows the voltage between two widely spaced points to be accurately measured.
摘要翻译：电光高压传感器包括电光材料的波导感测光纤。要测量的电压的电场基本上平行于感测光纤的纵向轴线。感测光纤承载两个正交偏振光波，其中施加的场影响波之间的双折射。在这种结构中使用电光波导纤维可以精确地测量两个广泛间隔的点之间的电压。

9. 发明申请

US20110122654A1 HIGH VOLTAGE AC/DC OR DC/AC CONVERTER STATION WITH FIBER-OPTIC CURRENT SENSOR 有权
标题翻译：具有光纤电流传感器的高压交流/直流或直流/交流转换器站
公开(公告)号：US20110122654A1
公开(公告)日：2011-05-26
申请号：US13014969
申请日：2011-01-27
申请人： Juergen HAEFNER , Andreas Frank , Klaus Bohnert
发明人： Juergen HAEFNER , Andreas Frank , Klaus Bohnert
IPC分类号： H02M7/00
CPC分类号： H02B7/06 , G01R15/246 , H01B17/26 , H02B13/0356 , H02B13/0358
摘要： DC current in a high voltage AC/DC or DC/AC converter station can be measured via the Faraday effect in one or more loops of an optical sensing fiber located at the base of a bushing extending through a wall of the hall. This arrangement can exploit the base of the bushing being at ground potential, which can simplify mounting work and maintenance.
摘要翻译：高压AC / DC或DC / AC转换站中的直流电流可以通过法拉第效应在位于穿过大厅壁的衬套底部的光学感测纤维的一个或多个环路中测量。这种布置可以利用衬套的基部处于地电位，这可以简化安装工作和维护。

10. 发明授权

US07251023B2 High-resolution fiber laser sensor 有权
标题翻译：高分辨率光纤激光传感器
公开(公告)号：US07251023B2
公开(公告)日：2007-07-31
申请号：US10512574
申请日：2003-04-29
申请人： Klaus Bohnert , Karim Haroud , Andreas Frank , Hubert Brändle
发明人： Klaus Bohnert , Karim Haroud , Andreas Frank , Hubert Brändle
IPC分类号： G01N21/00
CPC分类号： H01S3/0675 , G01D5/344 , G01L1/246 , G01L9/0079 , G01L11/025 , H01S3/06712 , H01S3/08031 , H01S3/1053
摘要： A high-resolution fiber laser sensor for measuring a quantity to be measured M has a pumping light source, a fiber laser and a detection/evaluating unit. The fiber laser has: a birefringent first end reflector, a second end reflector, a laser-amplifying fiber, a sensor fiber and a mode coupling. The laser-amplifying fiber, the sensor fiber and the mode coupling are arranged between the end reflectors. In the fiber laser, light is capable of propagating in two optical states which are orthogonal to one another due to their polarization and/or their transversal space structure. The orthogonal optical states can be coupled to one another by the mode coupling. In the fiber laser, a number of longitudinal modes are capable of oscillating in each of the two optical states. In the sensor fiber a change in the birefringence for the two orthogonal optical states can be achieved by interaction of the quantity to be measured with the sensor fiber.
摘要翻译：用于测量待测量M的高分辨率光纤激光传感器具有泵浦光源，光纤激光器和检测/评估单元。光纤激光器具有：双折射第一端反射器，第二端反射器，激光放大光纤，传感器光纤和模式耦合。激光放大光纤，传感器光纤和模式耦合设置在端反射器之间。在光纤激光器中，由于它们的极化和/或它们的横向空间结构，光能够以两个彼此正交的光学状态传播。正交光学状态可以通过模式耦合彼此耦合。在光纤激光器中，多个纵向模式能够在两个光学状态中的每一个中振荡。在传感器光纤中，两个正交光学状态的双折射变化可以通过将待测量与传感器光纤的相互作用来实现。

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