-
1.发明授权Reducing dither induced errors from path length control resets in a ring laser gyro 失效在环形激光陀螺仪中减少抖动引起的路径长度控制复位误差
公开(公告)号：US5801377A
公开(公告)日：1998-09-01
申请号：US801387
申请日：1997-02-20
CPC分类号： G01C19/664
摘要： An integrator in a ring laser gyro that produces an output for changing the path length is reset synchronously with a gyro dither signal to reduce gyro errors from the dithering operation during the reset.
摘要翻译： 产生用于改变路径长度的输出的环形激光陀螺仪中的积分器与陀螺仪抖动信号同步地复位，以在复位期间减少来自抖动操作的陀螺仪误差。
-
2.发明授权
公开(公告)号：US5094537A
公开(公告)日：1992-03-10
申请号：US666539
申请日：1991-03-08
IPC分类号： G01C19/66
CPC分类号： G01C19/661
摘要： An RLG signal processing system in which RLG quadrature errors are corrected by adding to one signal a portion of the other signal whose magnitude is a function of the magnitude of the quadrature error. Output buffer amplifiers restore the output signal to equal amplitude.
摘要翻译： RLG信号处理系统，其中RLG正交误差通过将幅度为正交误差大小的函数的另一信号的一部分加到一个信号来校正。 输出缓冲放大器将输出信号恢复到相等幅度。
-
公开(公告)号：US06229615B1
公开(公告)日：2001-05-08
申请号：US09478317
申请日：2000-01-06
IPC分类号： G01C1968
CPC分类号： G01C19/68
摘要： In a ring laser gyro (RLG), the dither pick off signal is applied to a variable gain amplifier, producing an output that controls the amplitude of the motion of a dither motor connected to the gyro. A square wave is generated from the dither pick off signal and applied to a signal processor with clockwise and counterclockwise signals produced by the motion of the gyro. The signal processor controls a multiplexer to select the gain for the variable gain amplifier by counting the clockwise and counterclockwise signals produced by the gyro motion in a interval (number of whole periods of dither motion) determined by counting the square wave signal produced from the dither pick off signal.
摘要翻译： 在环形激光陀螺仪（RLG）中，抖动拾取信号被施加到可变增益放大器，产生控制连接到陀螺仪的抖动电机的运动幅度的输出。 从抖动拾取信号产生方波，并将其施加到由陀螺仪的运动产生的顺时针和逆时针信号的信号处理器。 信号处理器控制多路复用器以通过对由抖动产生的方波信号进行计数确定的间隔（抖动运动的整个周期数）中的陀螺运动产生的顺时针和逆时针信号来计算可变增益放大器的增益。 拾取信号。
-
4.发明授权Sample and hold control method and apparatus for improved scale factor linearity 失效采样和保持控制方法和装置，以提高比例因子的线性度
公开(公告)号：US5402232A
公开(公告)日：1995-03-28
申请号：US114547
申请日：1993-08-31
CPC分类号： G01C19/66
摘要： A control method is disclosed which extends random drift improvement control to operation at high input rates. Traditional RDI control fails at high input rates due to the diminishing amplitude of the SBS; therefore, the control is lost. The present invention continuously samples the RDI control position and holds this RDI control position at its last previously recorded optimum value while the ring laser gyroscope is subjected to high input rates.
摘要翻译： 公开了一种控制方法，其将随机漂移改进控制扩展到在高输入速率下的操作。 由于SBS的振幅减小，传统的RDI控制在高输入速率下失败; 因此，控制失去了。 本发明连续采样RDI控制位置，并将该RDI控制位置保持在其最后的先前记录的最佳值，同时环形激光陀螺仪经受高输入速率。
-
公开(公告)号：US5335063A
公开(公告)日：1994-08-02
申请号：US697816
申请日：1991-05-09
IPC分类号： G01C19/66
CPC分类号： G01C19/665
摘要： A ring laser angular rate sensor apparatus includes ring laser apparatus for generating a pair of counter-propagating laser beams about a closed-loop path where the laser beam intensity varies as a function of drive voltage. Path length control apparatus including a transducer drive amplifier apparatus provides a drive signal for variably adjusting the length of the closed loop path so as to acquire a peak laser intensity. Reset acceleration apparatus for selectively applying a bias signal to the path length control apparatus rapidly forces the drive signal in one direction thereby causing the laser intensity corresponding to the drive signal to increase and allows the path length control apparatus to acquire a laser intensity peak. In one embodiment of the invention the reset acceleration apparatus includes apparatus for comparing a predetermined reference signal with a laser intensity signal and switching apparatus, coupled to and controlled by the comparing apparatus, for applying the bias signal. The bias signal is applied by the comparing apparatus when the laser intensity signal falls below the level of the predetermined reference signal.
摘要翻译： 环形激光角速度传感器装置包括环形激光装置，用于围绕闭环路径产生一对反向传播的激光束，其中激光束强度作为驱动电压的函数而变化。 包括换能器驱动放大器装置的路径长度控制装置提供用于可变地调节闭环路径的长度的驱动信号，以获得峰值激光强度。 用于选择性地向路径长度控制装置施加偏置信号的复位加速装置快速地迫使驱动信号在一个方向上，从而使对应于驱动信号的激光强度增加，并允许路径长度控制装置获取激光强度峰值。 在本发明的一个实施例中，复位加速装置包括用于将预定参考信号与激光强度信号和切换装置进行比较的装置，其耦合到比较装置并由比较装置控制，用于施加偏置信号。 当激光强度信号低于预定参考信号的电平时，比较装置施加偏置信号。
-
6.发明授权Method and system for minimizing angular random walk or bias in a ring laser gyroscope through the use of temperature based control 失效通过使用基于温度的控制来最小化环形激光陀螺仪中角度随机游走或偏置的方法和系统
公开(公告)号：US5400141A
公开(公告)日：1995-03-21
申请号：US115196
申请日：1993-08-31
IPC分类号： G01C19/66
CPC分类号： G01C19/661
摘要： A system and method is provided which minimizes angular random walk or bias occurring in ring laser gyroscopes as a result of temperature changes. Temperature is known to affect components in a ring laser gyroscope in a manner which increases angular random walk or bias. By detecting temperature and causing movable path length transducers to move mirrors in the gyroscope into a position previously determined for a given temperature, angular random walk or bias is minimized for the given temperature.
摘要翻译： 提供了一种系统和方法，其最小化由于温度变化导致的环形激光陀螺仪中发生的角随机游走或偏差。 已知温度以增加角随机散步或偏压的方式影响环形激光陀螺仪中的部件。 通过检测温度并使可移动路径长度换能器将陀螺仪中的反射镜移动到预先为给定温度确定的位置，对于给定温度，角度随机游走或偏置被最小化。
-
7.发明授权
公开(公告)号：US5283627A
公开(公告)日：1994-02-01
申请号：US74232
申请日：1993-06-09
摘要： The present invention inhibits quenching of a laser following a radiation event by providing a radiation sensing arrangement connected to the discharge current control circuitry controlling the discharge current of the laser, for sensing a radiation event and for controlling the discharge current control circuitry in such a way that quenching of the laser for a predetermined amount of time after a radiation event is inhibited.
摘要翻译： 本发明通过提供连接到控制激光器的放电电流的放电电流控制电路的辐射感测装置来抑制放射线事件之后的激光淬火，以感测辐射事件并以这种方式控制放电电流控制电路 在辐射事件之后激光器淬火预定时间量被抑制。
-
公开(公告)号：US5467190A
公开(公告)日：1995-11-14
申请号：US93054
申请日：1993-07-16
摘要： An interface circuit is provided to allow substitution of digital output rotation sensors such as fiber optic gyroscopes or ring laser gyroscopes in place of spinning mass gyroscopes. The pulses generated from the fiber optic gyroscope, or from a ring laser gyroscope are converted to a voltage representative of volts per degrees per second and are summed with an inverted volts per degrees per second at an integrating summing amplifier to result in an error signal in volts per degrees per second when there is a difference between the actual output of the gyroscope and the command signal.
摘要翻译： 提供接口电路以允许代替数字输出旋转传感器，例如光纤陀螺仪或环形激光陀螺仪代替纺丝质量陀螺仪。 从光纤陀螺仪或从环形激光陀螺仪产生的脉冲被转换成代表每秒每伏特的电压的电压，并且在积分求和放大器处以每秒每秒的反相伏特相加，以产生误差信号 当陀螺仪的实际输出和命令信号之间存在差异时，每秒每伏特伏特数。
-
9.发明授权Device and method for reducing angular random walk in a ring laser gyroscope 失效在环形激光陀螺仪中减少角随机游走的装置和方法
公开(公告)号：US5450197A
公开(公告)日：1995-09-12
申请号：US115190
申请日：1993-08-31
CPC分类号： G01C19/665
摘要： A ring laser gyroscope system includes light intensity detecting devices for detecting intensity of laser beams in the gyroscope. A computer processes the output and calculates the amount of backscatter in each beam. The measurement of backscatter is used to calculate the amount of movement required of mirrors in the gyroscope to change the path length of the laser beams an amount sufficient to minimize the backscatter in each. By minimizing backscatter, random walk of the laser beam is reduced.
摘要翻译： 环形激光陀螺仪系统包括用于检测陀螺仪中激光束强度的光强度检测装置。 计算机处理输出并计算每个波束中的反向散射量。 反向散射的测量用于计算陀螺仪中反射镜所需的移动量，以便将激光束的路径长度改变为足以使每个反射散射最小化的量。 通过最小化反向散射，减少了激光束的随机游走。
-
公开(公告)号：US6067160A
公开(公告)日：2000-05-23
申请号：US803493
申请日：1997-02-20
CPC分类号： G01C19/665
摘要： In an ring laser gyro, a path length modulation signal is applied to an amplifier with two gain levels and the amplifier's output is added to a path length transducer drive signal that changes the gyro's path length. When a path length reset signal is produced, the higher gain signal is selected and maintained for a short interval after the reset signal.
摘要翻译： 在环形激光陀螺仪中，路径长度调制信号被施加到具有两个增益级的放大器，并且放大器的输出被添加到改变陀螺仪路径长度的路径长度传感器驱动信号。 当产生路径长度复位信号时，在复位信号之后的较短间隔内选择并保持较高的增益信号。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.015 秒)
