WAVELENGTH MONITORED AND STABILIZED SOURCE
    34.
    发明申请
    WAVELENGTH MONITORED AND STABILIZED SOURCE 有权
    波长监测和稳定源

    公开(公告)号:US20110026127A1

    公开(公告)日:2011-02-03

    申请号:US12902063

    申请日:2010-10-11

    Inventor: Domino Taverner

    CPC classification number: G01C19/721 H04B10/572

    Abstract: Methods and apparatus for sampling techniques can constantly monitor a spectral output from a broadband source in order to control a central wavelength of interrogation light supplied by the source for input to a sensor. A first portion of light output from the broadband source passes through a controller module for spectral analysis and referencing to provide measurements that can be used as feedback to actively modify a second portion of the light from the source. This modified second portion thereby controls the central wavelength to ensure accurate determination of sensor response signals received at a receiver.

    Abstract translation: 用于采样技术的方法和装置可以不断监视来自宽带源的频谱输出,以便控制由源提供的询问光的中心波长以输入到传感器。 从宽带源输出的光的第一部分通过用于光谱分析和参考的控制器模块,以提供可用作反馈的测量,以主动修改源的第二部分光。 该修改的第二部分由此控制中心波长以确保准确地确定在接收机处接收的传感器响应信号。

    Wavelength monitored and stabilized source
    35.
    发明授权
    Wavelength monitored and stabilized source 有权
    波长监测和稳定源

    公开(公告)号:US07813046B2

    公开(公告)日:2010-10-12

    申请号:US11855297

    申请日:2007-09-14

    Inventor: Domino Taverner

    CPC classification number: G01C19/721 H04B10/572

    Abstract: Methods and apparatus for sampling techniques can constantly monitor a spectral output from a broadband source in order to control a central wavelength of interrogation light supplied by the source for input to a sensor. A first portion of light output from the broadband source passes through a controller module for spectral analysis and referencing to provide measurements that can be used as feedback to actively modify a second portion of the light from the source. This modified second portion thereby controls the central wavelength to ensure accurate determination of sensor response signals received at a receiver.

    Abstract translation: 用于采样技术的方法和装置可以不断监视来自宽带源的频谱输出,以便控制由源提供的询问光的中心波长以输入到传感器。 从宽带源输出的光的第一部分通过用于光谱分析和参考的控制器模块,以提供可用作反馈的测量,以主动修改源的第二部分光。 该修改的第二部分由此控制中心波长以确保准确地确定在接收机处接收的传感器响应信号。

    Location marker for distributed temperature sensing systems
    36.
    发明授权
    Location marker for distributed temperature sensing systems 有权
    分布式温度传感系统的位置标记

    公开(公告)号:US07769252B2

    公开(公告)日:2010-08-03

    申请号:US12028401

    申请日:2008-02-08

    CPC classification number: E21B47/065 E21B47/04 G01K1/14 G01K11/32

    Abstract: Methods and apparatus for distributed temperature sensing (DTS) include marking one or more points at known locations along a waveguide or fiber of a distributed temperature sensing (DTS) system and applying position information from such marked locations to DTS measurements. A Bragg grating in the waveguide or fiber may provide a discrete marker for identification of the position information. Application of the position information from such marked locations to the DTS measurements avoids ambiguous interpretations of other inherent features to assess location and enables data analysis referenced by the known locations to correlate the DTS measurements in space.

    Abstract translation: 用于分布式温度感测(DTS)的方法和装置包括沿着分布式温度感测(DTS)系统的波导或光纤的已知位置标记一个或多个点,并将位置信息从这些标记位置应用到DTS测量。 波导或光纤中的布拉格光栅可以提供用于识别位置信息的离散标记。 将这些标记位置的位置信息应用于DTS测量可以避免对其他固有特征的模糊解释来评估位置,并使由已知位置引用的数据分析能够将空间中的DTS测量值相关联。

    Spectrally stabilized broadband optical source
    37.
    发明授权
    Spectrally stabilized broadband optical source 有权
    光谱稳定宽带光源

    公开(公告)号:US07560685B2

    公开(公告)日:2009-07-14

    申请号:US11855292

    申请日:2007-09-14

    Abstract: Methods and apparatus enable compensation of source light wavelength fluctuations due to instability of a broadband source within an optical sensing system. Tapping off two or more portions of the light output from the source at specific wavelength bands enables power based measurements of these portions. The measurements provide compensation ability by either use as feedback to control the source or for determination of the central wavelength so that adjustments can be applied to sensor response signals received at a receiver.

    Abstract translation: 方法和装置能够补偿由于光学感测系统内的宽带源不稳定引起的源光波长波动。 在特定波长带上从光源输出的光的两个或多个部分拍摄使得能够对这些部分进行基于功率的测量。 这些测量通过用作控制源或用于确定中心波长的反馈来提供补偿能力,使得可以对接收器处接收的传感器响应信号进行调整。

    Polarization mitigation technique
    38.
    发明授权
    Polarization mitigation technique 有权
    极化缓解技术

    公开(公告)号:US07411676B2

    公开(公告)日:2008-08-12

    申请号:US11670800

    申请日:2007-02-02

    CPC classification number: H04B10/2572 G01J3/0224 G01J3/1895 G01J3/28

    Abstract: A method and apparatus for mitigating the effects of polarization on wavelength determinations is disclosed. An optical source produces light across an optical spectrum, while a polarization element changes the polarization of the light at a first rate. The resulting light is applied to an optical element that produces a spectral response with a feature of interest from the polarization changed light. The optical element and the polarization element are such that the bandwidth of the feature of interest of the optical element is significantly greater than the first rate. A receiver network produces received signals from the received spectrum; and a data processing unit calculates a wavelength that is insensitive to ripple in the received signal and/or the received signals are low-pass filtered to reduce the ripple resulting from the polarization change.

    Abstract translation: 公开了一种用于减轻极化对波长确定的影响的方法和装置。 光源在光谱上产生光,而偏振元件以第一速率改变光的偏振。 所产生的光被施加到从偏振变化的光产生具有感兴趣特征的光谱响应的光学元件。 光学元件和偏振元件使得光学元件的感兴趣特征的带宽显着大于第一速率。 接收机网络从接收的频谱产生接收信号; 并且数据处理单元计算对接收信号中的纹波不敏感的波长和/或低通滤波的接收信号以减少由偏振变化引起的纹波。

    POLARIZATION MITIGATION TECHNIQUE
    40.
    发明申请
    POLARIZATION MITIGATION TECHNIQUE 有权
    极化减速技术

    公开(公告)号:US20070189776A1

    公开(公告)日:2007-08-16

    申请号:US11670800

    申请日:2007-02-02

    CPC classification number: H04B10/2572 G01J3/0224 G01J3/1895 G01J3/28

    Abstract: A method and apparatus for mitigating the effects of polarization on wavelength determinations is disclosed. An optical source produces light across an optical spectrum, while a polarization element changes the polarization of the light at a first rate. The resulting light is applied to an optical element that produces a spectral response with a feature of interest from the polarization changed light. The optical element and the polarization element are such that the bandwidth of the feature of interest of the optical element is significantly greater than the first rate. A receiver network produces received signals from the received spectrum; and a data processing unit calculates a wavelength that is insensitive to ripple in the received signal and/or the received signals are low-pass filtered to reduce the ripple resulting from the polarization change.

    Abstract translation: 公开了一种用于减轻极化对波长确定的影响的方法和装置。 光源在光谱上产生光,而偏振元件以第一速率改变光的偏振。 所产生的光被施加到从偏振变化的光产生具有感兴趣特征的光谱响应的光学元件。 光学元件和偏振元件使得光学元件的感兴趣特征的带宽显着大于第一速率。 接收机网络从接收的频谱产生接收信号; 并且数据处理单元计算对接收信号中的纹波不敏感的波长和/或低通滤波的接收信号以减少由偏振变化引起的纹波。

Patent Agency Ranking