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1.发明授权Common mirror triaxial ring laser gyroscope having a single internal cathode 失效具有单个内部阴极的普通镜面三轴环激光陀螺仪
公开(公告)号：US4837774A
公开(公告)日：1989-06-06
申请号：US183580
申请日：1988-04-19
CPC分类号： G01C19/668 , H01S3/083
摘要： A compact three axis ring laser gyroscope having six laser corner mirrors which are positioned on the faces of a parallelopiped laser block, and method for making. Preferably the laser block is a cube. The laser block has a plurality of conduits therein for defining a plurality of closed laser beam-paths for guiding counterpropagating laser waves. Each laser beam-path has a gain medium therein and is formed to define a sensing axis for detection of rotations of the laser block. A single cathode is positioned inside the laser block, preferably substantially at its geometric center, and a plurality of anodes are mounted to the laser block and spaced apart from the cathode. A ion flow path is formed between each anode and the cathode such that application of a suitable electrical potential difference between the anodes and the cathode produces counterpropagating laser beams in each laser beam-path. The anodes are arranged to eliminate undesired Fresnel-Fizeau phase shifts by ensuring that each of the three ring gyros has two opposing ion flows.
摘要翻译： 具有位于平行六面体激光器块的表面上的六个激光角镜的紧凑型三轴环激光陀螺仪及其制造方法。 优选地，激光块是立方体。 激光块在其中具有多个导管，用于限定用于引导反向传播的激光波的多个闭合的激光束路径。 每个激光束路径中具有增益介质，并形成为限定用于检测激光块的旋转的感测轴。 单个阴极位于激光器块的内部，优选地基本上在其几何中心处，并且多个阳极安装到激光器块并与阴极间隔开。 在每个阳极和阴极之间形成离子流动路径，使得在阳极和阴极之间施加合适的电势差在每个激光束路径中产生反向传播的激光束。 阳极设置为通过确保三个环形陀螺仪中的每一个具有两个相对的离子流来消除不期望的菲涅尔 - 菲索相移。
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公开(公告)号：US4383763A
公开(公告)日：1983-05-17
申请号：US261851
申请日：1981-05-08
CPC分类号： H01L41/0973 , G01C19/665 , G02B26/0825 , H01S3/083 , H01S3/086
摘要： A mirror constrained to translation and whose position is controlled by a piezoelectric ceramic operating as a bimorph.
摘要翻译： 反射镜被约束到平移，其位置由作为双压电晶片的压电陶瓷控制。
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公开(公告)号：US4281930A
公开(公告)日：1981-08-04
申请号：US970603
申请日：1978-12-18
申请人： Thomas J. Hutchings
发明人： Thomas J. Hutchings
CPC分类号： G01C19/70
摘要： A single mode laser gyro having two oppositely traveling laser beams is provided with mechanically dithered mirrors at its three or four reflection points. Each mirror is mounted for movement in and out as the result of the expansion and contraction of stacks of piezoelectric elements associated with each mirror. The mirrors are dithered or oscillated in and out, at the same frequency and in phase relationship with one another so that the perimeter distance for the laser cavity is held at a fixed number of wavelengths, but the laser beam translates back and forth across the faces of the mirrors. By this technique, the undesired phenomena of lock-in at low rotation rates is avoided, without the need for special optical or magnetic structures in the path of the laser beam.
摘要翻译： 具有两个相对行进的激光束的单模激光陀螺仪在其三个或四个反射点处设置有机械抖动反射镜。 由于与每个反射镜相关联的压电元件堆叠的膨胀和收缩，每个反射镜被安装用于进出。 反射镜以相同的频率和相位关系彼此抖动或振荡，使得激光腔的周边距离保持在固定数量的波长，但是激光束在表面之间来回平移 的镜子。 通过这种技术，避免了在低旋转速率下锁定的不期望的现象，而不需要激光束路径中的特殊光学或磁性结构。
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公开(公告)号：US4818109A
公开(公告)日：1989-04-04
申请号：US916152
申请日：1986-10-07
CPC分类号： G02B6/2817 , G01C19/662 , G02B6/2821
摘要： Apparatus for producing a three phase signal from two or three optical beams at different optical frequencies, such signal having a frequency equal to the difference frequency or frequencies between the optical frequencies of said beams including, preferably, an equal energy single mode fiber optic coupler and optical focusing means, such as gradient index rods, for directing said light beams onto light conducting fibers, preferably single mode fibers, thence through the coupler, thence onto light detectors to produce a substantially balanced three phase electrical signal at said difference frequency or frequencies.In a preferred embodiment, the light beams are two in number, connected to only two input ports of said coupler, and the light beam sources are the output beams of counter- propagating ring laser beams in a ring laser gyro.
摘要翻译： 用于在不同光频率下从两个或三个光束产生三相信号的装置，该信号的频率等于所述波束的光频率之间的差频或频率，优选地包括等能量单模光纤耦合器和 用于将光束引导到导光纤维（优选单模光纤）上的光聚焦装置，然后通过耦合器，然后到达光检测器，以产生所述差频或频率的基本平衡的三相电信号。 在一个优选实施例中，光束是两个，仅连接到所述耦合器的两个输入端口，并且光束源是环形激光陀螺仪中的相反传播环形激光束的输出光束。
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5.发明授权Zeeman multioscillator ring laser gyro insensitive to magnetic fields and detuning frequencies 失效塞曼多振荡器环激光陀螺对磁场和失谐频率不敏感
公开(公告)号：US4475199A
公开(公告)日：1984-10-02
申请号：US443057
申请日：1982-11-19
CPC分类号： H01S3/102 , G01C19/667
摘要： A Zeeman ring laser gyro is described which includes a laser medium of helium-neon consisting of dual isotopes of Ne.sup.20 and Ne.sup.22 in which 53.5% is Ne.sup.20 and 46.5% is Ne.sup.22 by volume. The laser also includes a reciprocal anisotropic dispersion element of quartz which optically splits right and left circularly polarized laser waves by 250 MHz. The portion of the laser cavity in which laser emission is stimulated is exposed to a colinear magnetic field of 30.sub.-20.sup.+10 gauss. The combined optimum parameters produce a laser gyro insensitive to changes in detuning frequencies and magnetic fields.
摘要翻译： 描述了一种塞曼环激光陀螺仪，其包括由Ne20和Ne22的双重同位素组成的氦氖激光介质，其中53.5％为Ne20，46.5％为Ne22体积。 该激光器还包括石英的往复各向异性色散元件，其将250毫赫左右的圆偏振激光波光学地分开。 激光发射被激发的激光腔的部分暴露于30-20 + 10高斯的共线磁场。 组合的最佳参数产生对失谐频率和磁场变化不敏感的激光陀螺仪。
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公开(公告)号：US5384636A
公开(公告)日：1995-01-24
申请号：US629108
申请日：1990-12-12
CPC分类号： G01C19/662
摘要： Disclosed herein is an External Scatter Removal System for Ring Laser Gyroscopes (such as a Split Gain Multioscillator) comprising a prism mounted on an optoisolator, wherein light transmitted out at least one of the mirrors of the Gyroscope passes into the prism and detector system, while oppositely directed backscattered light from the prism components is not returned to the gyroscope frame's internal optical path, thereby limiting any appreciable backscatter from interfering with an accurate measurement of the rotation rate of the gyroscope.
摘要翻译： 本文公开了一种用于环形激光陀螺仪的外部散射去除系统（例如分裂增益多体振荡器），其包括安装在光隔离器上的棱镜，其中透射出的至少一个陀螺仪的反射镜的光进入棱镜和检测器系统，同时 来自棱镜部件的相反导向的后向散射光不会返回到陀螺仪框架的内部光路，从而限制任何可观的反向散射干扰陀螺仪的旋转速度的精确测量。
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7.发明授权Apparatus and method for correcting ring laser gyroscope phase angle errors induced by lock-in 失效用于校正由锁定引起的环形激光陀螺仪相位角误差的装置和方法
公开(公告)号：US5347359A
公开(公告)日：1994-09-13
申请号：US110003
申请日：1987-10-19
申请人： Thomas J. Hutchings , Edward Kanegsberg , Sheridan W. Hammons , Daryl C. Stjern, deceased , Edmund W. Rusche, legal representative
发明人： Thomas J. Hutchings , Edward Kanegsberg , Sheridan W. Hammons , Daryl C. Stjern, deceased , Edmund W. Rusche, legal representative
CPC分类号： G01C19/68
摘要： Phase errors that occur when a dithered ring laser gyroscope enters its deadband are measured, and a correction is applied to the output of the ring laser gyroscope to compensate for these phase errors. The counterpropagating beams in a ring laser gyroscope are heterodyned to produce a pair of quadrature heterodyne signals that indicate the angular output of the laser ring laser gyroscope. The phase angle error between one of the heterodyne signals and either the sum or difference of the separate beam intensities is determined, The phase angle error signal is used to produce a control signal for adjusting the output of the ring laser gyroscope to correct for errors introduced at or near turnarounds in the dither cycle.
摘要翻译： 测量在抖动环形激光陀螺仪进入其死区时发生的相位误差，并对环形激光陀螺仪的输出进行校正，以补偿这些相位误差。 环形激光陀螺仪中的反向传播光束被外差以产生一对正交外差信号，其指示激光环形激光陀螺仪的角度输出。 确定外差信号之一之间的相位角误差与分立光束强度的和或差值之间的相位角误差。相位角误差信号用于产生用于调整环形激光陀螺仪输出的控制信号，以纠正引入的误差 在抖动周期中或接近周转。
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公开(公告)号：US4317089A
公开(公告)日：1982-02-23
申请号：US214143
申请日：1980-12-08
CPC分类号： H01S3/083 , G01C19/661 , H01S3/0835
摘要： A ring laser wherein, in the preferred embodiment, the laser path is substantially square, and the path length is adjustable by making at least one of the mirrors slightly tilted and one of the mirrors concave with at least the concave mirror translatable.
摘要翻译： 一种环形激光器，其中在优选实施例中，激光路径基本上是正方形的，并且通过使至少一个反射镜稍微倾斜并且其中一个反射镜至少凹面反射镜可平移地使路径长度可调。
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公开(公告)号：US5527036A
公开(公告)日：1996-06-18
申请号：US366888
申请日：1994-12-30
申请人： Thomas J. Hutchings , Tae W. Hahn
发明人： Thomas J. Hutchings , Tae W. Hahn
IPC分类号： A63B69/36
CPC分类号： A63B69/3614 , A63B2220/805
摘要： An electro-optic device is used to detect the position and speed of a golf club head as it passes in front of the device. This information triggers a short optical pulse of light to illuminate the club head, allowing a golfer to see the club head at a desired position as an after-image, and to read the displayed club head speed.
摘要翻译： 电光装置用于检测高尔夫球杆头在穿过装置前方的位置和速度。 该信息触发光的短脉冲以照亮球杆头，允许高尔夫球手将球杆头作为后置图像看到期望的位置，并且读取所显示的球杆头速度。
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公开(公告)号：US5357338A
公开(公告)日：1994-10-18
申请号：US512257
申请日：1983-07-11
申请人： Thomas J. Hutchings
发明人： Thomas J. Hutchings
CPC分类号： G01C19/665
摘要： A path length controller for a ring laser gyro wherein the path length is dithered by dithering of one or more of the mirrors and the mirror or mirrors are controlled by a servo which is selectively biased in response to the servo signal to keep the mirror or mirrors in a position to support the largest amplitude of the principal mode of laser oscillation.
摘要翻译： 用于环形激光陀螺仪的路径长度控制器，其中通过一个或多个反射镜和反射镜或反射镜的抖动来抖动路径长度的伺服系统由伺服控制，该伺服机构响应于伺服信号选择性地偏置以保持反射镜或反射镜 在支持激光振荡的主要模式的最大振幅的位置。
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