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公开(公告)号：USRE34490E
公开(公告)日：1993-12-28
申请号：US170221
申请日：1988-03-15
CPC分类号： G01C19/668 , H01S3/083
摘要： A triaxial ring laser gyroscope with three square optical paths which are planar and orthogonal with respect to one another, this laser gyroscope comprising six optical mirrors interconnected two by two by means of twelve optical path segments (capillary channels), said segments forming an octahedron, with one mirror for each corner, each of the mirrors operating simultaneously in two orthogonal optical paths.
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公开(公告)号：US4762415A
公开(公告)日：1988-08-09
申请号：US858896
申请日：1986-04-25
申请人： John A. Geen , David J. Guppy
发明人： John A. Geen , David J. Guppy
CPC分类号： H01S3/083 , G01C19/668
摘要： In a multiple axis ring laser gyroscope in which one or more of the laser cavity corner mirrors is or are shared by different cavities and in which the laser beams in these different cavities operate at the same nominal frequency, scattering of the beam in one cavity into another cavity by the shared mirror(s) may produce disadvantageous lock-in effects. To at least lessen this possibility, the frequencies of the beams in the gyroscope disclosed herein are offset one from another, the offset being sufficient to affect lock in but not so great that the frequency of any beam is overly far from the lasing medium gain curve center. The frequency offsets may be produced by introducing offset bias signals into some channels of the gyroscope path length control servosystem.
摘要翻译： 在多轴环激光陀螺仪中，其中一个或多个激光腔角镜由不同腔体共用或共用，并且其中这些不同腔中的激光束以相同的标称频率工作，将光束在一个空腔中散射成 通过共享反射镜的另一个空腔可能产生不利的锁定效应。 为了至少减轻这种可能性，本文公开的陀螺仪中的波束的频率彼此偏移，偏移量足以影响锁定但不太大，使得任何波束的频率与激光介质增益曲线过度相距 中央。 可以通过将偏移偏置信号引入陀螺仪路径长度控制伺服系统的某些通道来产生频率偏移。
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公开(公告)号：US4477188A
公开(公告)日：1984-10-16
申请号：US368797
申请日：1982-04-16
申请人： John C. Stiles , Bo H. G. Ljung
发明人： John C. Stiles , Bo H. G. Ljung
CPC分类号： G01C19/668
摘要： A monolithic ring laser gyroscope is formed by six mirrors mounted to the respective center of each face in a cube. Bores in the cube interconnect each of the mirrors. Three orthogonal planes are defined within the cube, each of which contains a laser cavity. Accordingly, three orthogonal beam paths exist, each responsive to rotational inputs about three orthogonal axes.
摘要翻译： 单片环形激光陀螺仪由安装在立方体中每个面的相应中心的六个反射镜形成。 立方体中的孔互连了每个镜子。 在立方体内限定三个正交平面，每个立方体包含激光腔。 因此，存在三个正交的光束路径，每个响应于围绕三个正交轴的旋转输入。
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公开(公告)号：US4407583A
公开(公告)日：1983-10-04
申请号：US255018
申请日：1981-04-17
申请人： Graham J. Simms
发明人： Graham J. Simms
CPC分类号： G01C19/668 , H01S3/083
摘要： A ring laser gyroscope having a plurality of sensitive axes (X, Y, Z) and hence a plurality of cavities (7X, 7Y, 7Z), the cavities lying in mutually orthogonal planes at right angles to the respective sensitive axes and each cavity having three or more corners arranged so that at least one corner coincides with a corner of another cavity, whereby the cavities are interconnected, the gyroscope further comprising a plurality of mirrors (17,18) disposed respectively at the coinciding corners and the remaining corners of the cavities (7X, 7Y, 7Z), whereby the number of mirrors is less than the total number of cavity corners, the mirrors at the coinciding cavity corners and the coinciding cavities being oriented such that the normal to each of these mirrors lies in the plane of each cavity it serves and bisects the associated corners of those cavities.
摘要翻译： 一种环形激光陀螺仪，其具有多个感测轴（X，Y，Z），因此具有多个空腔（7X，7Y，7Z），所述空腔位于与各个感测轴成直角的相互正交的平面中，并且每个空腔具有 三个或更多个角部被布置成使得至少一个角部与另一腔的角部重合，由此空腔相互连接，陀螺仪还包括分别设置在重合拐角处的多个反射镜（17,18） 空腔（7X，7Y，7Z），由此反射镜的数量小于腔体角部的总数，在重合腔角处的反射镜和重合腔被定向成使得这些反射镜中的每一个的法线位于平面 并且将这些空腔的相关角分成两等分。
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公开(公告)号：US20110116097A1
公开(公告)日：2011-05-19
申请号：US12919980
申请日：2009-02-11
CPC分类号： G01C19/665 , G01C19/668
摘要： In a method for positioning three translatable mirrors in a device that includes three laser cavities arranged in a ring, each of the three laser cavities includes an optical amplification medium that can be excited to generate light waves. Each of the three laser cavities also includes an optical cavity formed by a set of mirrors including two of the translatable mirrors, the length of the optical cavity depending on the position of the two translatable mirrors, wherein the two translatable mirrors can be moved within position ranges imparting to the optical cavity lengths at which the amplification medium generates at least one laser wave. Each of the three translatable mirrors is used in the formation of two of the three optical cavities. The method includes the phase of prepositioning the three mirrors at an initial triplet of predetermined respective positions. The method also includes the phase of simultaneously moving in translation the three mirrors within ranges having a same amplitude that is lower than or equal to the intermode of the optical cavity having the highest intermode, to ensure that each of the optical cavities has a length for which the amplification medium provides a maximum gain. The intensities of the laser waves flowing respectively through each of the optical cavities are measured for each triplet of positions assumed by the mirrors. The method also includes the phase of determining, from the three triplets of mirror positions that respectively allowed each of the three cavities to provide a maximum intensity, the length of each of the three cavities at which the cavity provides a maximum intensity. The method further includes the phase of determining a single final triplet of mirror positions for simultaneously imparting to the three lengths at which they provide a maximum intensity. The method also includes the phase of positioning the mirrors according to the final position triplet. The invention can be used in positioning and navigation.
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公开(公告)号：US20080002208A1
公开(公告)日：2008-01-03
申请号：US11766968
申请日：2007-06-22
申请人： Etienne Bonnaudet , Pierre Gallon , Selvin David
发明人： Etienne Bonnaudet , Pierre Gallon , Selvin David
IPC分类号： G01B9/02
CPC分类号： G01C19/668
摘要： The present invention relates to a laser gyro of the type comprising an optical block comprising three communicating resonant optical cavities which form a regular octahedron having eight triangular sides, each of the cavities presenting four capillary segments forming a square perpendicular to a corresponding sensitive axis, these cavities being arranged so that each of the angles of one cavity coincides and communicates with the angle of another cavity, a mirror associated with each pair of coinciding angles being oriented so as to be used by the two cavities forming said pair, each cavity using four mirrors including a reading mirror and a cavity-length servo mirror, said gyro also comprising an activation mechanism for driving the block according to a reciprocating rotation movement about an activation axis, and it is characterized in that this gyro comprises three cathodes each linked to two cavities out of the three, these two cavities being each time taken by circular permutation.
摘要翻译： 本发明涉及一种包括光学块的激光陀螺仪，该光学块包括形成具有八个三角形侧面的规则八面体的三个连通的共振光学腔，每个空腔具有形成垂直于对应的敏感轴的正方形的四个毛细管段， 空腔被布置成使得一个空腔的每个角度与另一个空腔的角度重合并连通，与每对重合角度相关联的反射镜被定向成由形成所述对的两个空腔使用，每个空腔使用四个 镜子包括读取镜和腔体伺服镜，所述陀螺仪还包括用于根据关于激活轴的往复旋转运动来驱动块的启动机构，其特征在于，该陀螺仪包括三个阴极，每个阴极连接到两个 在这三个空间中，这两个空腔每次都被循环置换 n。
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公开(公告)号：US4839903A
公开(公告)日：1989-06-13
申请号：US878592
申请日：1986-06-26
申请人： Graham J. Simms , David J. Guppy
发明人： Graham J. Simms , David J. Guppy
CPC分类号： H01S3/073 , G01C19/668 , H01S3/03
摘要： Triaxial ring laser gyroscopes have three interconnecting cavities which provide many paths along which discharge can be initiated, and consequently it has been found that it is difficult to achieve the correct discharge. It is therefore proposed to align the desired discharge paths with the electrostatic fields which exist due to the voltage differences between the cathode and each one of the six anodes to enhance the initiation of the correct discharge.
摘要翻译： 三轴环激光陀螺仪具有三个相互连接的空腔，其提供许多可以启动放电的路径，因此已经发现难以实现正确的放电。 因此，建议将期望的放电路径与由于阴极和六个阳极中的每一个之间的电压差而存在的静电场对准，以增强正确放电的开始。
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公开(公告)号：US4795258A
公开(公告)日：1989-01-03
申请号：US34731
申请日：1987-04-06
申请人： Graham J. Martin
发明人： Graham J. Martin
CPC分类号： H01S3/083 , G01C19/668
摘要： A ring loser gyroscope for sensing rotations about three orthogonal axes. A frame includes and internal arrangement of three intersecting cavities, each of which is arranged for measuring rotation about one of the orthogonal axes. Each cavity comprises a non-planar arrangement of four cavity legs. A pair of anodes and a cathode cooperate with the intersecting cavities and, in one embodiment, with bypass tubes, whereby undesired Fresnel-Frizeau phase shifts are eliminated by gas flow effect cancellations.
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公开(公告)号：US3563662A
公开(公告)日：1971-02-16
申请号：US3563662D
申请日：1966-06-13
申请人： SPERRY RAND CORP
发明人： WING WILLIS G
CPC分类号： G01C19/70 , G01C19/668 , G01C21/16 , G01P15/0888 , H01S3/083 , Y10T74/1221
摘要： APPARATUS FOR SENSING MOVEMENT ABOUT A PLURALITY OF AXES INCLUDING A LIKE PLURALITY OF RING LASERS MOUNTED ON SURFACES DEFINING A GEOMETRIC FIGURE, FOR EXAMPLE, AN ORTHOGONALLY MOUNTED TRIAD OF RING LASERS MOUNTED ON MUTUALLY PERPENDICULAR SURFACES OF A CUBE WHEREIN THE CUBE IS ROTATED ABOUT ONE OF ITS DIAGONAL AXES FOR IMPARTING EQUAL COMPONENTS OF ROTATION TO EACH OF THE RING LASERS THEREBY ELIMINATING MODE LOCKING AND ASSURING THAT THE BEAT FREQUENCY OBTAINED BY HETERODYNING THE CONTRAROTATING LIGHT WAVES IS LINEARLY RELATED TO THE COMPONENT OF ROTATION RATE MEASURED PARALLEL TO THE INPUT AXIS OF THE RESPECTIVE RING LASER.
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公开(公告)号：US07511821B2
公开(公告)日：2009-03-31
申请号：US11766968
申请日：2007-06-22
申请人： Etienne Bonnaudet , Pierre Gallon , Selvin David
发明人： Etienne Bonnaudet , Pierre Gallon , Selvin David
CPC分类号： G01C19/668
摘要： The present invention relates to a laser gyro of the type comprising an optical block comprising three communicating resonant optical cavities which form a regular octahedron having eight triangular sides, each of the cavities presenting four capillary segments forming a square perpendicular to a corresponding sensitive axis, these cavities being arranged so that each of the angles of one cavity coincides and communicates with the angle of another cavity, a mirror associated with each pair of coinciding angles being oriented so as to be used by the two cavities forming said pair, each cavity using four mirrors including a reading mirror and a cavity-length servo mirror, said gyro also comprising an activation mechanism for driving the block according to a reciprocating rotation movement about an activation axis, and it is characterized in that this gyro comprises three cathodes each linked to two cavities out of the three, these two cavities being each time taken by circular permutation.
摘要翻译： 本发明涉及一种包括光学块的激光陀螺仪，该光学块包括形成具有八个三角形侧面的规则八面体的三个连通的共振光学腔，每个空腔具有形成垂直于对应的敏感轴的正方形的四个毛细管段， 空腔被布置成使得一个空腔的每个角度与另一个空腔的角度重合并连通，与每对重合角度相关联的反射镜被定向成由形成所述对的两个空腔使用，每个空腔使用四个 镜子包括读取镜和腔体伺服镜，所述陀螺仪还包括用于根据关于激活轴的往复旋转运动来驱动块的启动机构，其特征在于，该陀螺仪包括三个阴极，每个阴极连接到两个 在这三个空间中，这两个空腔每次都被循环置换 n。
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