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1. 发明授权

US6040908A Method for stress tuning fiber optic sensor coils 失效
标题翻译：光纤传感器线圈应力调节方法
公开(公告)号：US6040908A
公开(公告)日：2000-03-21
申请号：US123626
申请日：1998-07-28
申请人： John P. Rahn , Ralph A. Patterson , Amado Cordova
发明人： John P. Rahn , Ralph A. Patterson , Amado Cordova
IPC分类号： G01C19/72 , G02B6/44
CPC分类号： G01C19/722 , G02B6/4458
摘要： A method and apparatus for reducing the temperature-dependent Shupe bias of a potted gyro sensor coil pack to near-zero is provided by selectively adjusting the manner in which CCW and CW fiber leads are attached to the coil pack or the coil mount. The invention recognizes the inevitable existence of a strain differential between the CW and CCW-wound portions of a symmetrically-wound fiber coil. Leads affixed to the ends of the CW and CCW-wound halves of the coil are selectively bonded in accordance with principles for creating a counteracting temperature-dependent stress differential whereby temperature-dependent Shupe bias is substantially eliminated from the gyro output.
摘要翻译：通过选择性地调节CCW和CW光纤引线附接到线圈组或线圈架上的方式，提供了将盆栽陀螺传感器线圈组的温度依赖性Shupe偏压降低到接近零的方法和装置。本发明认识到对称卷绕的纤维线圈的CW和CCW卷绕部分之间的应变差的不可避免的存在。根据用于产生抵消温度依赖性应力差的原理，固定到线圈的CW和CCW卷绕半部的端部的引线被选择性地接合，由此基本上从陀螺仪输出消除了温度依赖性的Shupe偏置。

2. 发明授权

US5847829A Reduction of fiber optic gyroscope vibration and temperature-ramp sensitivities by controlling coil geometrical parameters 失效
标题翻译：通过控制线圈几何参数来减少光纤陀螺的振动和温度 - 斜坡灵敏度
公开(公告)号：US5847829A
公开(公告)日：1998-12-08
申请号：US841491
申请日：1997-04-23
申请人： Amado Cordova
发明人： Amado Cordova
IPC分类号： G01C19/72 , G01C19/64
CPC分类号： G01C19/722
摘要： A method for providing an optical fiber coil having reduced bias vibration and bias temperature-ramp sensitivity by controlling and adjusting coil geometrical factors including the coil potted length, the adhesive layer thickness, the number of turns per layer, the number of layers and the way the winding is terminated. The windings may be terminated to form the coil as a complete quadrupole, a diapole, an incomplete quadrupole or an incomplete diapole. By adjusting geometrical factors of the coil design, a coil for which the residual net Shupe bias is negligible is obtained.
摘要翻译：一种用于通过控制和调节包括线圈封套长度，粘合剂层厚度，每层匝数，层数和方式的线圈几何因素来提供具有减小的偏置振动和偏置温度 - 斜坡灵敏度的光纤线圈的方法绕组终止。绕组可以被终止以形成线圈作为完整的四极杆，二极杆，不完全四极杆或不完全的二极。通过调整线圈设计的几何因素，获得剩余净Shupe偏差可忽略的线圈。

3. 发明授权

US5082349A Bi-domain two-mode single crystal fiber devices 失效
标题翻译：双域双模单晶光纤器件
公开(公告)号：US5082349A
公开(公告)日：1992-01-21
申请号：US541091
申请日：1990-06-20
申请人： Amado Cordova-Plaza , Herbert J. Shaw
发明人： Amado Cordova-Plaza , Herbert J. Shaw
IPC分类号： G02F1/035 , G02F1/377
CPC分类号： G02F1/3775 , G02F1/0353
摘要： A mode converter comprises an a-axis LiNbO.sub.3 optical fiber exhibiting a ferroelectric bi-domain structure. The fiber is subject to an electrical field that induces a +.pi./2 phase retardation in one domain of the fiber and a -.pi./2 phase retardation in the other domain. A light signal launched in the fundamental mode of the fiber is converted into a light signal propagating in the second order mode. When the electrical field is selected so that the phase retardations are not multiples of .pi./2, the mode conversion is partial and the LiNbO.sub.3 fiber can operate as an optical switch or as an amplitude modulator. The mode converter can also be operated as a second harmonic generator. The fiber is heated to a phase matching temperature so that a signal launched in the fundamental mode of the fiber and at a frequency .omega. is converted to the second order mode at a frequency 2.omega.. The LiNbO.sub.3 fiber can also simultaneously operate as an optical switch and as a second harmonic generator. Other non-linear interactions are possible such as sum or difference frequency generation or parametric generation. The various embodiments of the present invention are reciprocal.
摘要翻译：模式转换器包括呈现铁电双畴结构的a轴LiNbO 3光纤。纤维经受电场，其在纤维的一个区域中引起+π/ 2相位延迟，并在另一个域中引起a-π/ 2相位延迟。以光纤的基本模式发射的光信号被转换成以二阶模式传播的光信号。当选择电场使得相位延迟不是pi / 2的倍数时，模式转换是部分的，并且LiNbO 3光纤可以作为光开关或调幅器工作。模式转换器也可以作为二次谐波发生器运行。将光纤加热到相位匹配温度，使得以光纤的基本模式发射的信号以频率ω被转换为频率为2ω的二阶模式。 LiNbO3光纤也可以作为光开关和二次谐波发生器同时工作。其他非线性相互作用是可能的，例如和或差频产生或参数生成。本发明的各种实施例是相互的。

4. 发明授权

US06654514B2 Tuned fiber optic interleaver 失效
标题翻译：调谐光纤交织器
公开(公告)号：US06654514B2
公开(公告)日：2003-11-25
申请号：US09968463
申请日：2001-10-01
申请人： Ronald J. Michal , Amado Cordova
发明人： Ronald J. Michal , Amado Cordova
IPC分类号： G02B628
CPC分类号： G02B6/4246 , G02B6/264 , G02B6/2706 , G02B6/29352 , G02B6/29395
摘要： An optical fiber interleaver and method for aligning the output channels to a set of nominal values in frequency space. The interleaver is formed of two optical fibers joined together at fused input and output couplers to define an input section, an interferometer section and an output section. Within the interferometer section, an element is arranged to vary the optical path length of at least one of the fibers in response to a feedback signal. The feedback signal is generated by examination of the intensity of a monitor signal at the output section that was applied at the input section.
摘要翻译：一种用于将输出通道与频率空间中的一组标称值对准的光纤交织器和方法。交织器由融合的输入和输出耦合器连接在一起的两根光纤形成，以限定输入部分，干涉仪部分和输出部分。在干涉仪部分内，响应于反馈信号，元件布置成改变至少一根光纤的光路长度。通过检查在输入部分处施加的输出部分处的监视信号的强度来生成反馈信号。

5. 发明授权

US06486960B2 Fiber optic sensor coil and tool for forming same 失效
标题翻译：光纤传感器线圈及其形成工具
公开(公告)号：US06486960B2
公开(公告)日：2002-11-26
申请号：US09795813
申请日：2001-02-27
申请人： Amado Cordova , Thomas McLean , Thomas Meloeny
发明人： Amado Cordova , Thomas McLean , Thomas Meloeny
IPC分类号： G01B902
CPC分类号： G01C19/722
摘要： A tool for forming a sensor coil that may be employed, for example, in a fiber optic gyroscope with reduced Shupe effect-induced bias. The tool includes a takeup reel having a cylindrical mandrel with inner flanges fixed to its opposed ends sandwiched between two outer flanges. Each of the inner flanges includes a pair of radially-directed apertures that form a radially-directed wedge therebetween. A recess in the planar portion of each of the outer flanges that contacts an inner flange is aligned with the apertures. This permits the winding of the sensor coil to form climbing turns at the ends of wound layers that lie outside an encapsulated fiber pack. Such turns, which join layers with overlying layers, avoid crossovers and the resultant stress that contributes significantly to Shupe effect-induced bias. A sensor coil having reduced internal stress is thus also provided.
摘要翻译：用于形成传感器线圈的工具，其可以例如在具有减小的Shupe效应引起的偏压的光纤陀螺仪中使用。该工具包括具有圆柱形心轴的卷取卷轴，其具有固定在夹在两个外凸缘之间的相对端部的内凸缘。每个内凸缘都包括一对在其间形成径向楔形的径向定向的孔。每个外凸缘的与内凸缘接触的平面部分中的凹部与孔对准。这允许传感器线圈的卷绕在位于封装的纤维包之外的卷绕层的端部处形成攀登匝。这样的匝连接层与上层，避免交叉和所产生的应力，显着影响Shupe效应诱导偏倚。因此也提供了具有减小的内部应力的传感器线圈。

6. 发明授权

US6054068A Potting compound for fabrication of fiber optic gyro sensor coil and method for fabricating sensor coil 失效
公开(公告)号：US6054068A
公开(公告)日：2000-04-25
申请号：US124803
申请日：1998-07-29
申请人： Kurt Randy Carlson , Amado Cordova , John P. Rahn
发明人： Kurt Randy Carlson , Amado Cordova , John P. Rahn
IPC分类号： G01C19/72 , G02B6/44 , B29D11/00
CPC分类号： G01C19/722 , G02B6/4457
摘要： A potting compound for use in the fabrication of fiber optic gyro sensor coils utilizes a silver-filled silicone base to reduce gyro sensitivity to changes in heat rate and thereby improve gyro performance during warm-up and periods of thermal cycling.

7. 发明授权

US5767970A Bonded fiber optic gyro sensor coil including voids 失效
标题翻译：粘结的光纤陀螺传感器线圈包括空隙
公开(公告)号：US5767970A
公开(公告)日：1998-06-16
申请号：US661166
申请日：1996-06-10
申请人： Amado Cordova
发明人： Amado Cordova
IPC分类号： G01C19/72 , G02B6/44
CPC分类号： G02B6/4457 , G01C19/722
摘要： A sensor coil for a fiber optic gyroscope. A continuous optical fiber is coated with bonding material of predetermined composition such as a thermoplastic material that exhibits a bond strength of at least 100 p.s.i. in tension, equivalent to at least 40 p.s.i. in shear. The coated fiber is arranged into a predetermined winding pattern whereby contacting portions of adjacent coil turns are bonded to one another. Void spaces between contacting portions of bonded turns reduce the volume of bonding material employed (as opposed to a filled potted sensor coil). The coil does not experience the differential in expansion along the axial and radial directions to the degree that has, for example, required the use of single flanged spools in the prior art. Its use with dual-flanged spools permits mounting arrangements that promote coil stiffness, thereby enhancing gyro performance in the presence of vibration.
摘要翻译：用于光纤陀螺仪的传感器线圈。连续的光纤被涂覆有预定组成的结合材料，例如表现出至少100p.s.i的粘结强度的热塑性材料。处于紧张状态，相当于至少40 p.s.i。在剪切。被覆纤维被布置成预定的卷绕图案，由此相邻线圈的接触部分彼此接合。接合线圈的接触部分之间的空隙减少了所使用的接合材料的体积（与填充的传感器线圈相反）。线圈在轴向和径向方向上不会经受膨胀差异，例如在现有技术中需要使用单凸缘线轴。它与双法兰卷轴的使用允许安装布置，以促进线圈刚度，从而增加振动的陀螺仪性能。

8. 发明授权

US5546482A Potted fiber optic gyro sensor coil for stringent vibration and thermal enviroments 失效
标题翻译：盆栽光纤陀螺传感器线圈，用于严格的振动和热环境
公开(公告)号：US5546482A
公开(公告)日：1996-08-13
申请号：US266993
申请日：1994-06-27
申请人： Amado Cordova , Glenn M. Surabian
发明人： Amado Cordova , Glenn M. Surabian
IPC分类号： G01C19/72 , G02B6/36 , G02B6/04
CPC分类号： G01C19/722 , G02B6/3624
摘要： A sensor coil for a fiber optic gyroscope is potted in polymer-based material selected for avoiding such temperature-related anomalies as bias spikes and bias crossings. The potting material is based upon a silicone composition characterized by a glass transition temperature that lies below and outside the operational range required for commercial or military operation. Predetermined fillers may be added to the silicone for bolstering stiffness (Young's modulus) within the polymer's rubbery region to reduce the gyro's bias sensitivity to vibration. Excellent bias thermal and vibration performance has been achieved with coils potted in silicone adhesive with a carbon-black filler.
摘要翻译：用于光纤陀螺仪的传感器线圈封装在基于聚合物的材料中，用于避免诸如偏置尖峰和偏置穿越之类的温度相关异常。灌封材料基于硅氧烷组合物，其特征在于在商业或军事操作所需的操作范围之下和之外的玻璃化转变温度。可以将预定的填料添加到硅树脂中以增强聚合物橡胶状区域内的刚度（杨氏模量），以降低陀螺仪对振动的偏差敏感度。线圈封装在带有炭黑填料的硅胶中已经实现了出色的偏置热和振动性能。

9. 发明授权

US5742390A Potted gyro sensor coil with inter-turn stress relief 失效
标题翻译：具有匝间应力消除的盆栽陀螺传感器线圈
公开(公告)号：US5742390A
公开(公告)日：1998-04-21
申请号：US751984
申请日：1996-11-19
申请人： Amado Cordova , Robert J. Hoover , Thomas McLean , Ralph A. Patterson , John P. Rahn
发明人： Amado Cordova , Robert J. Hoover , Thomas McLean , Ralph A. Patterson , John P. Rahn
IPC分类号： G01C19/72 , G02B6/44 , G01C19/64
CPC分类号： G01C19/722 , G02B6/4457
摘要： A potted sensor coil for a fiber optic gyroscope includes an inter-layer stress relief layer of lubricating material. The coil is wound into a known pattern. Various coil configurations can be realized in which a coating layer of lubricant relieves stressing at the interface between the outer jacket of the fiber and the coil potting material.
摘要翻译：用于光纤陀螺仪的盆式传感器线圈包括润滑材料的层间应力消除层。线圈缠绕成已知的图案。可以实现各种线圈构造，其中润滑剂涂层在纤维的外护套和线圈灌封材料之间的界面处减轻应力。

10. 发明授权

US5682241A Method and apparatus for overcoming cross-coupling in a fiber optic gyroscope employing overmodulation 失效
标题翻译：在采用过调制的光纤陀螺仪中克服交叉耦合的方法和装置
公开(公告)号：US5682241A
公开(公告)日：1997-10-28
申请号：US613558
申请日：1996-03-11
申请人： John G. Mark , Daniel A. Tazartes , Amado Cordova
发明人： John G. Mark , Daniel A. Tazartes , Amado Cordova
IPC分类号： G01C19/72
CPC分类号： G01C19/72
摘要： A phase modulator applies sequences of artificial phase shifts in the region of overmodulation between light beams counterpropagating within the sensor coil of a Sagnac interferometer to obtain improved random walk performance. The sequences are composed of phase shifts of .+-.a.pi./2b and .+-.(4b-a).pi./2b where a is an odd integer and b is an integer greater than 1. The waveform for driving the phase modulator is derived from a 2.pi. radian mapping plotted so that adjacent driving signal values differ by a.pi./2b or -(4b-a).pi./2b in a first angular direction and by -a.pi./2b or by (4b-a).pi./2b in the opposite angular direction. Angular transitions about the mapping may be predetermined to generate a deterministic, random, or pseudo-random modulation sequence. In the event that a deterministic sequence is chosen, it is examined for orthogonality properties to assume zero average output bias from crosstalk.
摘要翻译：相位调制器在Sagnac干涉仪的传感器线圈内的反向传播的光束之间的过调制区域中施加人造相移序列，以获得改进的随机游走性能。序列由+/- a pi / 2b和+/-（4b-a）pi / 2b的相移组成，其中a是奇整数，b是大于1的整数。用于驱动相位调制器的波形是衍生自2 pi弧度映射，使得相邻的驱动信号值在第一角度方向上以pi-2b或 - （4b-a）pi / 2b和-a / 2b或由（4b-a）pi / 2b在相反的角度方向。关于映射的角度转换可以被预先确定以产生确定性，随机或伪随机调制序列。在选择确定性序列的情况下，检查正交性质以假定来自串扰的零平均输出偏差。

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