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1. 发明申请

US20060164650A1 Single sensor ring laser gyroscope 失效
标题翻译：单传感器环激光陀螺仪
公开(公告)号：US20060164650A1
公开(公告)日：2006-07-27
申请号：US11040382
申请日：2005-01-21
申请人： Brittan Zurn , Richard Beaudet , Thomas Savard , Leroy Thielman , Rodney Thorland
发明人： Brittan Zurn , Richard Beaudet , Thomas Savard , Leroy Thielman , Rodney Thorland
IPC分类号： G01C19/64
CPC分类号： G01C19/662 , G01C19/665
摘要： A ring laser gyroscope is described which includes a laser cavity configured to provide an optical laser path for a pair of counter-propagating laser beams, an optical sensor configured to receive a portion of the energy from the counter-propagating laser beams, and a unit configured to receive outputs from the optical sensor. The unit is configured to utilize the output to generate at least a residual path length control signal, a laser intensity monitor signal, and readout signals.
摘要翻译：描述了环形激光陀螺仪，其包括被配置为提供用于一对反向传播的激光束的光学激光路径的激光腔，被配置为从反向传播的激光束接收能量的一部分的光学传感器，以及单元被配置为接收来自光学传感器的输出。该单元被配置为利用输出来产生至少残留路径长度控制信号，激光强度监视信号和读出信号。

2. 发明申请

US20060045159A1 System and method for maintaining a purity level of a lasing gas 审中-公开
标题翻译：用于保持激光气体的纯度水平的系统和方法
公开(公告)号：US20060045159A1
公开(公告)日：2006-03-02
申请号：US10930490
申请日：2004-08-31
申请人： Leroy Thielman , Timothy Callaghan , Christina Schober , David Malenke , Britt Proctor , Daniel Sittler , Ying Tan , Michael McCoy
发明人： Leroy Thielman , Timothy Callaghan , Christina Schober , David Malenke , Britt Proctor , Daniel Sittler , Ying Tan , Michael McCoy
IPC分类号： H01S3/22
CPC分类号： H01S3/0305 , G01C19/661 , H01S3/08059
摘要： An oxygen diffusion barrier is used to maintain a purity level of lasing gas in a ring laser gyroscope or other gas discharge device. The oxygen diffusion barrier reduces a release of contaminate gases into a cavity of the ring laser gyroscope and/or absorbs the contaminate gases in the cavity. The oxygen diffusion barrier may be formed on walls of the cavity before or after assembly of the ring laser gyroscope. Alternatively, a material may be applied to inside walls of a cathode mounted on a block of the ring laser gyroscope to maintain the purity level of the lasing gas. As a result of maintaining the purity level of the lasing gas, the ring laser gyroscope operates more efficiently.
摘要翻译：使用氧扩散阻挡层来保持环形激光陀螺仪或其它气体放电装置中的激光气体的纯度水平。氧扩散屏障减少污染气体释放到环形激光陀螺仪的空腔中和/或吸收空腔中的污染气体。氧气扩散阻挡层可以在环形激光陀螺仪的组装之前或之后形成在空腔的壁上。或者，可以将材料施加到安装在环形激光陀螺仪的块体上的阴极的内壁，以保持激光气体的纯度水平。作为保持激光气体的纯度水平的结果，环形激光陀螺仪操作更有效率。

3. 发明申请

US20060176489A1 System, circuit and method for off-mode-peak operation of ring laser gyroscopes 失效
标题翻译：环形激光陀螺仪的离模峰值操作的系统，电路和方法
公开(公告)号：US20060176489A1
公开(公告)日：2006-08-10
申请号：US11051950
申请日：2005-02-04
申请人： Clifford Molaskey , Leroy Thielman , Douglas Chamberlin
发明人： Clifford Molaskey , Leroy Thielman , Douglas Chamberlin
IPC分类号： G01C19/68
CPC分类号： G01C19/66
摘要： A system, circuit and method are disclosed for operating an RLG off-mode-peak to avoid exciting undesirable transverse modes. An alternate PLC operating point can be used to bias the optical path length of the RLG to an appropriate side of an ideal integer number of wavelengths, and thus avoid exciting the undesirable transverse modes. Although this alternate PLC operating point is not perfect with respect to establishing an integer number of wavelengths, this operation provides acceptable performance of the RLG's (in particular, short length path RLG's), and acceptable margin can be established relative to variations in the PLC set points involved. For example, a PLC loop can be used to dither about this operating point as a discriminate to allow closed loop control of the path length. Also, a PSSD control architecture can be used to establish and maintain a requisite path length over relatively wide variations in operating temperature. Specifically, a small offset error can be injected into a conventional PSSD loop for an RLG, which causes the loop to converge on a pre-selected operating point that is on one side of a conventional convergence point. The magnitude and polarity characteristics of this operating point offset can be determined for each RLG, or such characteristics can be consistently used for a family of RLG's.
摘要翻译：公开了用于操作RLG离模峰的系统，电路和方法，以避免令人兴奋的不期望的横向模式。可选的PLC工作点可用于将RLG的光路长度偏置到理想的整数个波长的适当侧，从而避免激发不期望的横向模式。尽管这个可替代的PLC工作点在建立整数波长方面并不完美，但这种操作提供了RLG（特别是短长度路径RLG）的可接受的性能，并且可以相对于PLC集中的变化来建立可接受的裕度涉及点数例如，可以使用PLC循环来对该操作点进行抖动，作为区分以允许路径长度的闭环控制。此外，可以使用PSSD控制架构来建立和维持在相对较宽的工作温度变化中所需的路径长度。具体地，可以将小的偏移误差注入用于RLG的常规PSSD环路中，这导致环路收敛于在常规收敛点的一侧上的预选操作点。可以为每个RLG确定该操作点偏移的幅度和极性特性，或者这些特性可以一致地用于一系列RLG。

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