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1.发明授权Distance measurement by beating a varying test signal with reference signal having absolute frequency value predetermined with a specified accuracy 有权通过以具有指定精度预定的绝对频率值的参考信号拍摄具有变化的测试信号的距离测量公开(公告)号：US09506739B2
公开(公告)日：2016-11-29
申请号：US14138012
申请日：2013-12-21
CPC分类号： G01B9/02003 , G01B9/02041 , G01S7/4808 , G01S7/4915 , G01S17/325
摘要： A method determines a distance with a specified accuracy. The method transmits to an interferometer a test signal oscillating with a test frequency and receives, in response to the transmitting, an interferometric signal formed by interfering the test signal with a delayed signal produced by delaying a copy of the test signal over the distance equal to a path length difference in the interferometer. The test frequency is varying such that the test signal oscillates with different values of the test frequency. The method determines at least two values of the test frequency corresponding to particular values of the interferometric signal by beating the test signal with a reference signal having a reference frequency, wherein a value of the reference frequency is an absolute value predetermined with the specified accuracy. The method determines the distance using the two values of the test frequency.
摘要翻译： 方法确定具有指定精度的距离。 该方法向干涉仪发送以测试频率振荡的测试信号，并且响应于发射而接收由干扰测试信号形成的干扰信号，所述干扰信号是通过将测试信号的副本延迟等于 干涉仪中的路径长度差。 测试频率是变化的，使得测试信号以不同的测试频率值振荡。 该方法通过用具有参考频率的参考信号击打测试信号来确定对应于干涉信号的特定值的测试频率的至少两个值，其中参考频率的值是以指定精度预定的绝对值。 该方法使用测试频率的两个值确定距离。
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2.发明申请公开(公告)号：US20150331109A1
公开(公告)日：2015-11-19
申请号：US14138012
申请日：2013-12-21
CPC分类号： G01B9/02003 , G01B9/02041 , G01S7/4808 , G01S7/4915 , G01S17/325
摘要： A method determines a distance with a specified accuracy. The method transmits to an interferometer a test signal oscillating with a test frequency and receives, in response to the transmitting, an interferometric signal formed by interfering the test signal with a delayed signal produced by delaying a copy of the test signal over the distance equal to a path length difference in the interferometer. The test frequency is varying such that the test signal oscillates with different values of the test frequency. The method determines at least two values of the test frequency corresponding to particular values of the interferometric signal by beating the test signal with a reference signal having a reference frequency, wherein a value of the reference frequency is an absolute value predetermined with the specified accuracy. The method determines the distance using the two values of the test frequency.
摘要翻译： 方法确定具有指定精度的距离。 该方法向干涉仪发送以测试频率振荡的测试信号，并且响应于发射而接收由干扰测试信号形成的干扰信号，所述干扰信号是通过将测试信号的副本延迟等于 干涉仪中的路径长度差。 测试频率是变化的，使得测试信号以不同的测试频率值振荡。 该方法通过用具有参考频率的参考信号击打测试信号来确定对应于干涉信号的特定值的测试频率的至少两个值，其中参考频率的值是以指定精度预定的绝对值。 该方法使用测试频率的两个值确定距离。
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公开(公告)号：US20140320863A1
公开(公告)日：2014-10-30
申请号：US14262089
申请日：2014-04-25
CPC分类号： G01C19/661 , G01C19/66 , G01C19/72 , G01P15/093
摘要： A method for enhancing a sensitivity of an optical sensor having an optical cavity counter-propagates beams of pump light within the optical cavity to produce scattered light based on Stimulated Brullion Scattering (SBS). The properties of the pump light are selected to generate fast-light conditions for the scattered light, such that the scattered light includes counter-propagating beams of fast light. The method prevents the pump light from resonating within the optical cavity, while allowing the scattered light to resonate within the optical cavity. At least portions of the scattered light are interfered outside of the optical cavity to produce a beat note for a measurement of the optical sensor. The disclosed method is particularly applicable to optical gyroscopes.
摘要翻译： 用于增强具有光学腔的光学传感器的灵敏度的方法使光腔内的泵浦光束反向传播，以产生基于激励的Brillion散射（SBS）的散射光。 选择泵浦光的特性以产生散射光的快光条件，使得散射光包括反向传播的快光束。 该方法防止泵浦光在光腔内谐振，同时允许散射光在光腔内谐振。 散射光的至少一部分被干涉到光腔外部，以产生用于测量光学传感器的节拍。 所公开的方法特别适用于光学陀螺仪。
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公开(公告)号：US09581448B2
公开(公告)日：2017-02-28
申请号：US14262089
申请日：2014-04-25
IPC分类号： G01C19/66 , G01P15/093 , G01C19/72
CPC分类号： G01C19/661 , G01C19/66 , G01C19/72 , G01P15/093
摘要： A method for enhancing a sensitivity of an optical sensor having an optical cavity counter-propagates beams of pump light within the optical cavity to produce scattered light based on Stimulated Brillouin Scattering (SBS). The properties of the pump light are selected to generate fast-light conditions for the scattered light, such that the scattered light includes counter-propagating beams of fast light. The method prevents the pump light from resonating within the optical cavity, while allowing the scattered light to resonate within the optical cavity. At least portions of the scattered light are interfered outside of the optical cavity to produce a beat note for a measurement of the optical sensor. The disclosed method is particularly applicable to optical gyroscopes.
摘要翻译： 用于增强具有光腔的光学传感器的灵敏度的方法使光腔内的泵浦光束反向传播，以产生基于受激布里渊散射（SBS）的散射光。 选择泵浦光的特性以产生散射光的快光条件，使得散射光包括反向传播的快光束。 该方法防止泵浦光在光腔内谐振，同时允许散射光在光腔内谐振。 散射光的至少一部分被干涉到光腔外部，以产生用于测量光学传感器的节拍。 所公开的方法特别适用于光学陀螺仪。
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