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31. 发明专利

JP2011154019A Synchronous radiation hardened fiber optic gyroscope 有权
标题翻译：同步辐射硬化光纤陀螺仪
公开(公告)号：JP2011154019A
公开(公告)日：2011-08-11
申请号：JP2010259914
申请日：2010-11-22
申请人： Honeywell Internatl Inc , ハネウェル・インターナショナル・インコーポレーテッド
发明人： TARLETON NORMAN GERARD , ENZONE STEPHAN , DOHENY DAVID A , MEAD DEREK
IPC分类号： G01C19/72
CPC分类号： G01C19/72
摘要： PROBLEM TO BE SOLVED: To provide a synchronous radiation hardened fiber optic gyroscope.
SOLUTION: The synchronous fiber optic gyroscope 100 includes: a light source 102, an optical coupler 104 in optical communication with the light source; an optical modulator 106 in optical communication with the coupler, and a fiber optic coil 116 in optical communication with the modulator. A detector 118 receives an optical signal from the coupler and converts the optical signal to an electrical signal. A loop closure signal processor 24 has a first input part to receive the electrical signal from the detector. A phase lock loop 130 has an output part operatively connected to a second input of the processor. A direct digital synthesizer is operatively coupled to the input part of the phase lock loop, with the synthesizer configured to generate a low-frequency signal that is transmitted to the phase lock loop. The phase lock loop converts the low-frequency signal to a high-frequency signal that is transmitted to the second input part of the processor, and the phase lock loop provides signal modulation that is synchronous with signal demodulation.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供同步辐射硬化光纤陀螺仪。解决方案：同步光纤陀螺仪100包括：光源102，与光源光学通信的光耦合器104; 与耦合器光学通信的光调制器106和与调制器光通信的光纤线圈116。检测器118从耦合器接收光信号并将光信号转换成电信号。环路闭合信号处理器24具有用于从检测器接收电信号的第一输入部分。锁相环130具有可操作地连接到处理器的第二输入端的输出部分。直接数字合成器可操作地耦合到锁相环的输入部分，合成器被配置为产生被发送到锁相环的低频信号。锁相环将低频信号转换为发送到处理器的第二输入部分的高频信号，锁相环提供与信号解调同步的信号调制。版权所有（C）2011，JPO＆INPIT

32. 发明专利

JP4716572B2 Reinforcing structure for the fiber optic gyroscope 有权
公开(公告)号：JP4716572B2
公开(公告)日：2011-07-06
申请号：JP2000592594
申请日：1999-09-10
申请人：ハネウェル・インターナショナル・インコーポレーテッド
发明人：カリスゼク，アンドリュー・ダブリュー , サンダーズ，グレン・エイ , ラスコスキー，クラレンス・イー
IPC分类号： G01C19/72
CPC分类号： G01C19/722

33. 发明专利

JP2011123058A System and method for reducing laser phase noise in resonator fiber optic gyroscope 有权
标题翻译：用于减少谐振器光纤陀螺的激光相位噪声的系统和方法
公开(公告)号：JP2011123058A
公开(公告)日：2011-06-23
申请号：JP2010257959
申请日：2010-11-18
申请人： Honeywell Internatl Inc , ハネウェル・インターナショナル・インコーポレーテッド
发明人： STRANDJORD LEE K , QUI TIEQUN , SANDERS GLEN A
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： PROBLEM TO BE SOLVED: To provide a system and method for reducing laser phase noise in a resonator fiber optic gyroscope. SOLUTION: The resonator gyroscope includes a reference laser generator to produce a reference light; a first slave light source to produce a first slave light locked to the reference light; a second slave light source to produce a second slave light locked to the reference light; a resonator 25 coupled to the first and second light sources. The resonator has first and second counter-propagating directions and resonance tracking electronics coupled to the Sagnac resonator to generate a first beat frequency based on a first resonance frequency for the first counter-propagating direction, a second beat frequency based on a second resonance frequency for the second counter-propagating direction, and a third beat frequency based on a third resonance frequency for the second counter-propagating direction. The rotational rate of the resonator gyroscope is a function of the first, second and third beat frequencies. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于降低谐振器光纤陀螺仪中的激光相位噪声的系统和方法。解决方案：谐振器陀螺仪包括用于产生参考光的参考激光发生器; 第一从光源，用于产生锁定到参考光的第一从光; 第二从光源，用于产生锁定到参考光的第二从光; 耦合到第一和第二光源的谐振器25。所述谐振器具有耦合到所述Sagnac谐振器的第一和第二反向传播方向和谐振跟踪电子装置，用于基于所述第一反向传播方向的第一谐振频率产生第一拍频，基于第二谐振频率的第二拍频第二反向传播方向和基于用于第二反向传播方向的第三共振频率的第三拍频。谐振器陀螺仪的旋转速率是第一，第二和第三拍频的函数。版权所有（C）2011，JPO＆INPIT

34. 发明专利

JP2011089908A Sensing coil for optical fiber gyro, and method for manufacturing the same 有权
标题翻译：用于光纤陀螺的传感线圈及其制造方法
公开(公告)号：JP2011089908A
公开(公告)日：2011-05-06
申请号：JP2009244129
申请日：2009-10-23
申请人： Tokyo Keiki Inc , 東京計器株式会社
发明人： YOSHIDA TOYOORI , TAMAKI TAKAYUKI , KOJIMA AKIHIKO , OMORI KUNIYOSHI
IPC分类号： G01C19/72
摘要： PROBLEM TO BE SOLVED: To simplify a winding work of an optical fiber, to suppress occurrence of crosstalk due to winding, and to provide a sensing coil for an optical fiber gyro of which influence of a temperature sensitivity is suppressed. SOLUTION: Two coils 16A, 16B are made in such a manner that optical fibers 14 are simultaneously wound around wind-up part 12a of two bobbins 12A, 12B in an aligned close contact winding manner in the same direction. The optical fibers drawn from outermost layers of the two coils 16A, 16B are thermally welded with each other. At that time, lengths from a weld 18 to the outermost layers of the two coils are differentiated. Under a condition that one 16B of the two coils is rotated by 180 degrees around an axis perpendicular to the center axis of the coil with respect to the other coil 16A, the center axis of the coil is made coincident with the other coil 16A and the bobbins 12A, 12B are jointed by an attachment member that passes through a plurality of long holes formed on fixing parts of the respective bobbins 12A, 12B. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了简化光纤的卷绕工作，以抑制由于卷绕引起的串扰的发生，并且提供抑制温度敏感性影响的光纤陀螺仪的感测线圈。解决方案：两个线圈16A，16B以这样的方式制造，使得光纤14以相同的方向以对齐的紧密接合绕组同时缠绕在两个线架12A，12B的卷绕部分12a上。从两个线圈16A，16B的最外层拉出的光纤被彼此热焊接。此时，从焊缝18到两个线圈的最外层的长度是不同的。在两个线圈中的一个16B相对于另一个线圈16A围绕与线圈的中心轴垂直的轴线旋转180度的条件下，使线圈的中心轴线与另一个线圈16A重合，并且线轴12A，12B通过穿过形成在各个线轴12A，12B的固定部分上的多个长孔的连接构件接合。版权所有（C）2011，JPO＆INPIT

35. 发明专利

JP2011027739A Resonator optical fiber gyroscope (rfog) with reduced bias error from higher order space modes 有权
标题翻译：共振器光纤陀螺（RFOG）具有降低的高阶空间模式的偏差
公开(公告)号：JP2011027739A
公开(公告)日：2011-02-10
申请号：JP2010162943
申请日：2010-07-20
申请人： Honeywell Internatl Inc , ハネウェル・インターナショナル・インコーポレーテッド
发明人： SANDERS GLEN A , QUI TIEQUN , STRANDJORD LEE
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： PROBLEM TO BE SOLVED: To provide a resonator optical fiber gyroscope with which bias error from higher order space mode is reduced. SOLUTION: The resonator includes at least a loop fiber 90, either two or three more in/out coupling elements 60, and a connectors that link elements into a circulating loop. Directional elements 53 and 54 may be used to separate output light from input light in some of the embodiments. In all embodiments, mode filters 80 are placed in the resonator to guarantee that the light reaching the photodetector 55 and 56 is filtered by at least one mode filter in the resonator at least once. The mode filters may contain both spatial mode filters (such as single mode fibers or single mode waveguides and the like) and polarization mode filters (such as polarizing elements and the like) so that both spatial and polarization mode filterings are implemented simultaneously. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种谐振器光纤陀螺仪，从而降低了来自高阶空间模式的偏差误差。解决方案：谐振器至少包括环形光纤90，两个或三个更多的输入/输出耦合元件60，以及将元件链接到循环回路中的连接器。在一些实施例中，定向元件53和54可以用于将输出光与输入光分离。在所有实施例中，模式滤波器80被放置在谐振器中以保证到达光电检测器55和56的光至少一个谐振器中的至少一个模式滤波器被滤波。模式滤波器可以包含空间模式滤波器（例如单模光纤或单模波导等）和偏振模式滤波器（例如偏振元件等），使得空间和偏振模式滤波都同时实现。版权所有（C）2011，JPO＆INPIT

36. 发明专利

JP2010261942A Optical fiber sensor, method of actuating optical fiber sensor, and method of forming optical fiber sensor 有权
标题翻译：光纤传感器，光纤传感器的动作方法以及形成光纤传感器的方法
公开(公告)号：JP2010261942A
公开(公告)日：2010-11-18
申请号：JP2010102304
申请日：2010-04-27
申请人： Board Of Trustees Of The Leland Stanford Jr Univ , ザボードオブトラスティーズオブザリランドスタンフォードジュニアユニヴァーシティ
发明人： DIGONNET MICHEL J F , FAN SHANHUI , LLOYD SETH
IPC分类号： G01C19/64 , G01C19/72 , G01D5/353
CPC分类号： G01C19/721
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber sensor, a method of forming an optical fiber sensor, and a method of using an optical fiber sensor. SOLUTION: This optical fiber sensor includes an optical fiber coil of some length and a laser source optically-coupled to the coil. The laser source has some coherence length. Light from the laser source is transmitted to the coil as a first signal propagating along the coil in a first direction and as a second signal propagating along the coil in a second direction opposite to the first direction. The optical path of the first signal and that of the second signal are substantially reversible to each other. The first and second signals propagate through the coil and then are combined with each other to generate a third signal. The coherence length is larger than 1 m, or falls within the range 200 μm to 10 cm. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种光纤传感器，形成光纤传感器的方法以及使用光纤传感器的方法。解决方案：该光纤传感器包括一段长度的光纤线圈和与线圈光耦合的激光源。激光源具有一定的相干长度。来自激光源的光作为沿着线圈沿第一方向传播的第一信号传输到线圈，并作为沿与线圈相反的第二方向传播的第二信号。第一信号的光路和第二信号的光路基本上是可逆的。第一和第二信号通过线圈传播，然后彼此组合以产生第三信号。相干长度大于1μm，或者在200μm至10cm的范围内。版权所有（C）2011，JPO＆INPIT

38. 发明专利

JP4558158B2 Apparatus using the method and said method reduces the polarization fluctuation induced drift in the resonant type fiber optic gyro 有权
公开(公告)号：JP4558158B2
公开(公告)日：2010-10-06
申请号：JP2000243218
申请日：2000-08-10
申请人：東京航空計器株式会社
发明人：和夫保立 , 澄典本田
IPC分类号： G01C19/72 , H01S3/083
CPC分类号： G01C19/727

40. 发明专利

JP2010156677A System and method for monitoring angle random walk 有权
标题翻译：用于监测角度随机沃尔克的系统和方法
公开(公告)号：JP2010156677A
公开(公告)日：2010-07-15
申请号：JP2009247879
申请日：2009-10-28
申请人： Honeywell Internatl Inc , ハネウェル・インターナショナル・インコーポレーテッド
发明人： STRANDJORD LEE , TARLETON NORMAN , BUSCH DARRYL
IPC分类号： G01C19/72
CPC分类号： G01C19/726
摘要： PROBLEM TO BE SOLVED: To provide a gyroscope which determines an angular velocity output, by reducing unwanted signal components relating to actual rotation and vibration information and an error guided by modulation, such as, optical glitch from IOC.
SOLUTION: The gyroscope 10 includes a first demodulator 22, configured to determine an angular velocity signal by demodulating an angular velocity measurement at a first bias modulation frequency and a second demodulator 24 configured to provide a signal, including ARW information by demodulating an angular velocity measurement at a second bias modulation frequency. The gyroscope, further, includes an ARW estimator 25 providing an output proportional to an ARW to be stored in a memory. The second bias modulation frequency is an even-order harmonic of the first bias modulation frequency. The gyroscope includes a filter for filtering the angular velocity measurement input of the second demodulator.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供通过减少与实际旋转和振动信息有关的不期望的信号分量以及由调制引起的误差（例如来自IOC的光学毛刺）来确定角速度输出的陀螺仪。解决方案：陀螺仪10包括第一解调器22，其被配置为通过解调第一偏置调制频率下的角速度测量值和第二解调器24来确定角速度信号，第二解调器24被配置为通过解调在第二偏置调制频率下的角速度测量。此外，陀螺仪还包括ARW估计器25，其提供与要存储在存储器中的ARW成比例的输出。第二偏置调制频率是第一偏置调制频率的偶次谐波。陀螺仪包括用于滤波第二解调器的角速度测量输入的滤波器。版权所有（C）2010，JPO＆INPIT

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