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1. 发明授权

EP2827100B1 Fiber optic gyroscope dead band error suppression 有权转让
标题翻译：光纤陀螺死区误差抑制
公开(公告)号：EP2827100B1
公开(公告)日：2016-08-03
申请号：EP14166472.2
申请日：2014-04-29
申请人： Honeywell International Inc.
发明人： Trinkle, William Joseph , Goethals, William
IPC分类号： G01C19/72
CPC分类号： G01C19/721 , G01C19/726

2. 发明授权

EP2817590B1 DISPOSITIF DE MESURE À FIBRE OPTIQUE, GYROMÈTRE, CENTRALE DE NAVIGATION ET DE STABILISATION INERTIELLE 有权转让
标题翻译：光纤测量装置和导航和惯性陀螺仪稳定系统
公开(公告)号：EP2817590B1
公开(公告)日：2016-01-06
申请号：EP13710493.1
申请日：2013-02-20
申请人： Ixblue
发明人： LEFEVRE, Hervé , PHAM, Van-Dong , HONTHAAS, Joachim
IPC分类号： G01C19/72
CPC分类号： G01C19/665 , G01C19/662 , G01C19/721 , G01C19/726 , G01R33/0322

3. 发明公开

EP2859308A2 LASER-DRIVEN OPTICAL GYROSCOPEWITH PUSH-PULL MODULATION 审中-公开
标题翻译： LASER-OPERATED光纤陀螺PUSH-PULL调制
公开(公告)号：EP2859308A2
公开(公告)日：2015-04-15
申请号：EP13811636.3
申请日：2013-06-07
申请人： The Board Of Trustees Of The University Of the Leland Stanford Junior University
发明人： LLOYD, Seth , DIGONNET, Michel, J.F. , FAN, Shanhui
IPC分类号： G01C19/72
CPC分类号： G01C19/66 , G01C19/721 , G01C19/726 , G01C25/00
摘要： A system and method for reducing coherent backscattering-induced errors in an optical gyroscope is provided. A first time-dependent phase modulation is applied to a first laser signal and a second phase modulation is applied to a second laser signal. The phase-modulated first laser signal propagates in a first direction through a waveguide coil and the phase-modulated second laser signal propagates in a second direction opposite the first direction through the waveguide coil. The first time-dependent phase modulation is applied to the phase-modulated second laser signal after the phase-modulated second laser signal propagates through the waveguide coil to produce a twice-phase-modulated second laser signal. The second time-dependent phase modulation is applied to the phase-modulated first laser signal after the phase-modulated first laser signal propagates through the waveguide coil to produce a twice-phase-modulated first laser signal. The twice-phase-modulated first and second laser signals are transmitted to a detector.

4. 发明公开

EP2650644A2 Resonator fiber optic gyroscope utilizing laser frequency combs 失效转让
标题翻译： Resonator-Glasfaser-Optikgyroskop，dasLaserfrequenzkämmebenutzt
公开(公告)号：EP2650644A2
公开(公告)日：2013-10-16
申请号：EP13160955.4
申请日：2013-03-25
申请人： Honeywell International Inc.
发明人： Sanders, Glen A. , Strandjord, Lee K. , Qiu, Tiequn
IPC分类号： G01C19/72
CPC分类号： G01C19/727 , G01C19/726 , G02B6/2934 , G02B6/29379
摘要： A resonator fiber optic gyroscope comprises a first light source having a first frequency comb spectrum, and a second light source having a second frequency comb spectrum. A first filter is in optical communication with the first light source and configured to pass a first frequency comb portion. A second filter is in optical communication with the second light source and configured to pass a second frequency comb portion. A resonator is in optical communication with the first and second filters. The free spectral range values of the first and second frequency comb portions are adjusted to be an odd integer multiple of the free spectral range value of the resonances of the resonator. The second frequency comb portion is spectrally separated apart from the first frequency comb portion by a multiple of the free spectral range value of the resonances plus a frequency value proportional to rotation rate.
摘要翻译：谐振器光纤陀螺仪包括具有第一频率梳状谱的第一光源和具有第二频率梳状谱的第二光源。第一滤光器与第一光源光通信并且被配置为通过第一频率梳部分。第二滤光器与第二光源光通信并被配置为通过第二频梳部分。谐振器与第一和第二滤波器光学通信。第一和第二频率梳状部分的自由光谱范围值被调整为谐振器的谐振的自由光谱范围值的奇数整数倍。第二频率梳部分与第一频率梳部分分开，共振的自由频谱范围值加上与转速成比例的频率值的倍数。

5. 发明公开

EP2463624A1 Systems and methods for driving an optical modulator 有权
标题翻译： Systeme und Verfahren zum Antreiben eines optischen调制器
公开(公告)号：EP2463624A1
公开(公告)日：2012-06-13
申请号：EP11192021.1
申请日：2011-12-05
申请人： Honeywell International, Inc.
发明人： Smith, Douglas E. , Armstrong, Steven G. , Mead, Derek
IPC分类号： G01C19/72
CPC分类号： G01C19/721 , G01C19/726
摘要： Systems and methods for driving an optical modulator are provided. In one embodiment, a modulation drive circuit comprises: a balanced impedance network having a first and a second output generated from a first input, and a third and a fourth output generated from a second input, wherein the first and second outputs are balanced with one another, and the third and fourth outputs are balanced with one another; a first differential amplifier, wherein an inverting input of the first differential amplifier couples to the first output of the distribution network and a non-inverting input of the first differential amplifier couples to the third output of the distribution network; and a second differential amplifier, wherein an inverting input of the second differential amplifier couples to the fourth output of the distribution network and a non-inverting input of the second differential amplifier couples to the second output of the distribution network.
摘要翻译：提供了用于驱动光学调制器的系统和方法。在一个实施例中，调制驱动电路包括：平衡阻抗网络，具有从第一输入产生的第一和第二输出以及从第二输入产生的第三和第四输出，其中所述第一和第二输出与一个另一个，第三和第四个输出相互平衡; 第一差分放大器，其中所述第一差分放大器的反相输入耦合到所述分配网络的所述第一输出，并且所述第一差分放大器的非反相输入耦合到所述分配网络的第三输出; 以及第二差分放大器，其中所述第二差分放大器的反相输入耦合到所述分配网络的第四输出，并且所述第二差分放大器的非反相输入耦合到所述分配网络的第二输出。

6. 发明授权

EP2196768B1 Automatic gain control for fiber optic gyroscope deterministic control loops 有权
标题翻译：用于光纤陀螺仪的确定性控制环路的自动增益控制
公开(公告)号：EP2196768B1
公开(公告)日：2012-03-14
申请号：EP09177186.5
申请日：2009-11-26
申请人： Northrop Grumman Guidance and Electronics Company, Inc.
发明人： Pavlath, George A. , Tazartes, Daniel A.
IPC分类号： G01C19/72
CPC分类号： G01C19/726

7. 发明授权

EP1499856B1 APPARATUS FOR DEAD BAND ERROR SUPPRESSION IN FIBER OPTIC GYROSCOPES 有权
标题翻译： DEVICE FOR REDUCTION免疫的地区光纤陀螺仪
公开(公告)号：EP1499856B1
公开(公告)日：2011-01-05
申请号：EP03726486.8
申请日：2003-04-28
申请人： Honeywell International Inc.
发明人： LANGE, Charles, H. , CHEN, Chung-Jen
IPC分类号： G01C19/72
CPC分类号： G01C19/726
摘要： A phase jump amplitude and timing controller for suppressing the voltage-dependent errors responsible for the dead band is provided. The phase jump amplitude and timing controller inserts a phase/voltage jump into feedback signal of the loop closure electronics of the fiber optic gyroscope. The phase/voltage jump is provided at a frequency regular enough to ensure that the fiber optic gyroscope will not have enough time to settle into the dead band before the phase/voltage jump is supplied to the loop closure electronics. By providing a recurring phase/voltage jump with amplitude to move the signal out of the dead band, the loop closure electronics averages the voltages-dependent errors over the full feedback voltage range. This error averaging process effectively eliminates the voltage-dependent errors that cause the dead band phenomenon and allows the loop closure electronics to sense the actual rate of the rotation for the fiber optic gyroscope.

8. 发明公开

EP2005113A1 PROCÉDÉ ET DISPOSITIF DE MESURE À FIBRE OPTIQUE, ET GYROMÈTRE ASSERVIS EN PUISSANCE 有权转让
标题翻译：光纤用装置，测量与功率控制方法和GYRO
公开(公告)号：EP2005113A1
公开(公告)日：2008-12-24
申请号：EP07731876.4
申请日：2007-04-05
申请人： Ixsea
发明人： URGELL, Alexandre , WILLEMENOT, Eric , GAIFFE, Thierry
IPC分类号： G01C19/72 , G01B9/02
CPC分类号： G01C19/726
摘要： The invention concerns a method and an optic-fiber measuring device comprising a light source of luminous intensity P, a Sagnac ring interferometer wherein two counter-propagating waves are propagated, a sensor receiving a light flux from the interferometer and converting it into an electric signal representing the total phase difference δΦt between the counter-propagating waves. It further comprises electronic means receiving the electric signal of the sensor and delivering a first signal S1 based on the measured parameter. The electronic means comprise a demodulator contributing to the delivery of the first signal based on the measured parameter and deliver a second signal S2 based on the intensity of the light flux. According to the invention, the optical phase modulator generates a disturbance component δΦcp which is added to the phase difference δΦm = δΦb + δΦcr.

9. 发明公开

EP1882900A1 High resolution ioc drive and method for driving fiber optic gyroscopes 有权
标题翻译： HochauflösendeIOC-Ansteuerung und Verfahren zur Ansteuerung eines faseroptischen Gyroskops
公开(公告)号：EP1882900A1
公开(公告)日：2008-01-30
申请号：EP07113316.9
申请日：2007-07-27
申请人： Honeywell International Inc.
发明人： Keith, Gregory W. , Greening, Thomas C. c/o Honeywell Intern. Inc. , Strandjord, Lee K.
IPC分类号： G01C19/72
CPC分类号： G01C19/726
摘要： Methods and system are provided for driving light through a sensing coil of an optical gyro. The system includes a photodetection circuit (32) having an input for receiving an optical output from the sensing coil and having an output, and a signal processing circuit (50) having an input coupled to the output of the photodetection circuit (32) and having an output for supplying an output signal to modulate the sensing coil. The photodetection system (32) produces a digital signal from the optical output. The signal processing circuit (50) produces a feedback signal from the digital signal and adds a random number to the feedback signal to produce the output signal.
摘要翻译：提供了用于通过光学陀螺仪的感测线圈驱动光的方法和系统。该系统包括具有用于从感测线圈接收光输出并具有输出的输入的光电检测电路（32），以及具有耦合到光电检测电路（32）的输出的输入的信号处理电路（50）用于提供输出信号以调制感测线圈的输出。光电检测系统（32）从光输出产生数字信号。信号处理电路（50）从数字信号产生反馈信号，并向反馈信号添加随机数以产生输出信号。

10. 发明公开

EP1595111A1 DIGITALER PHASENMODULATOR FÜR EINE FASEROPTISCHE EINRICHTUNG 有权转让
标题翻译：数字相位调制器光纤装置
公开(公告)号：EP1595111A1
公开(公告)日：2005-11-16
申请号：EP04712523.2
申请日：2004-02-19
申请人： LITEF GmbH
发明人： VOIGT, Sven , SPAHLINGER, Günter , NEWZELLA, Alfons
IPC分类号： G01C19/72 , G02F1/01
CPC分类号： G01C19/726 , G02F1/0115 , G02F1/0316 , G02F2201/122 , G02F2203/50
摘要： The invention relates to a digital phase modulator for a fiber-optic signal transmission or measuring device that has a predetermined total number m of electrodes (E0 to E11) of varying length that are disposed in parallel and at both sides of a light guiding path (L) in or on an optical substrate. The aim of the invention is to substantially increase the resolution of such a digital phase modulator. This aim is achieved by the method according to the invention and the corresponding system of electrodes which are based on the idea of dividing the electrodes up into two groups. A first group n of electrodes (E4 to E11) represents a macro-modulator having binary weighted and higher order electrodes with a length ratio of bn+1: bn = 2, whose longest electrode (E11) corresponds to the sum of lengths of all remaining electrodes of the overall modulator, while a second smaller group of n0 not-binary weighted and low order electrodes (E0 to E3) represents a micro-modulator. The smallest initial values are no longer produced by controlling individual electrodes of the micro-modulator but by calculating the difference between two larger electrodes each. Despite the comparatively short length of the phase modulator that would allow only for a resolution of 9 bits (electrode ratio of approximately 1:2-9) for technological reasons, the inventive subdivision into two different modulator concepts allows for a resolution in a value range of approximately 12 bits. The particular advantage is that it is no longer necessary to use a correction chart and if said chart, if available, fails, an emergency service with reduced resolution can be provided.

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