Brillouin distributed temperature sensing calibrated in-situ with Raman distributed temperature sensing
    4.
    发明授权
    Brillouin distributed temperature sensing calibrated in-situ with Raman distributed temperature sensing 有权
    布里渊分布式温度感测用拉曼分布式温度传感原位校准

    公开(公告)号:US07529434B2

    公开(公告)日:2009-05-05

    申请号:US12021537

    申请日:2008-01-29

    CPC classification number: G01K11/32 G01K15/00

    Abstract: Methods and apparatus for distributed temperature sensing (DTS) along a single mode or multimode optical waveguide or fiber include a calibration of initial Brillouin-based DTS measurements using Raman-based DTS measurements to enable accurate subsequent Brillouin-based DTS measurements. Such calibration may occur while the fiber is deployed in the environment in which temperature is to be sensed and thereby corrects influences on Brillouin scattered light from stress or strain along the fiber. Further, calibration may utilize one or more discrete temperature sensors to correct errors in one or both of the Brillouin-based DTS measurements and the Raman-based DTS measurements.

    Abstract translation: 沿着单模或多模光波导或光纤的分布式温度感测(DTS)的方法和装置包括使用基于拉曼的DTS测量的基于初始布里渊的DTS测量的校准,以使得能够进行精确的随后的基于布里渊的DTS测量。 这种校准可以在纤维部署在要感测温度的环境中时发生,从而校正对沿着纤维的应力或应变的布里渊散射光的影响。 此外,校准可以利用一个或多个离散温度传感器来校正基于布里渊的DTS测量和基于拉曼的DTS测量中的一个或两个中的误差。

    BRILLOUIN DISTRIBUTED TEMPERATURE SENSING CALIBRATED IN-SITU WITH RAMAN DISTRIBUTED TEMPERATURE SENSING
    5.
    发明申请
    BRILLOUIN DISTRIBUTED TEMPERATURE SENSING CALIBRATED IN-SITU WITH RAMAN DISTRIBUTED TEMPERATURE SENSING 有权
    布朗分布式温度传感校准校准与拉曼分布式温度感测

    公开(公告)号:US20080181554A1

    公开(公告)日:2008-07-31

    申请号:US12021537

    申请日:2008-01-29

    CPC classification number: G01K11/32 G01K15/00

    Abstract: Methods and apparatus for distributed temperature sensing (DTS) along a single mode or multimode optical waveguide or fiber include a calibration of initial Brillouin-based DTS measurements using Raman-based DTS measurements to enable accurate subsequent Brillouin-based DTS measurements. Such calibration may occur while the fiber is deployed in the environment in which temperature is to be sensed and thereby corrects influences on Brillouin scattered light from stress or strain along the fiber. Further, calibration may utilize one or more discrete temperature sensors to correct errors in one or both of the Brillouin-based DTS measurements and the Raman-based DTS measurements.

    Abstract translation: 沿着单模或多模光波导或光纤的分布式温度感测(DTS)的方法和装置包括使用基于拉曼的DTS测量的基于初始布里渊的DTS测量的校准,以使得能够进行精确的随后的基于布里渊的DTS测量。 这种校准可能在纤维部署在要感测温度的环境中时发生,从而纠正对沿着纤维的应力或应变的布里渊散射光的影响。 此外,校准可以利用一个或多个离散温度传感器来校正基于布里渊的DTS测量和基于拉曼的DTS测量中的一个或两个中的误差。

    Wavelength monitored and stabilized source
    7.
    发明授权
    Wavelength monitored and stabilized source 有权
    波长监测和稳定源

    公开(公告)号:US08243369B2

    公开(公告)日:2012-08-14

    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
    9.
    发明申请
    WAVELENGTH MONITORED AND STABILIZED SOURCE 有权
    波长监测和稳定源

    公开(公告)号:US20090073537A1

    公开(公告)日:2009-03-19

    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。

    SPECTRALLY STABILIZED BROADBAND OPTICAL SOURCE
    10.
    发明申请
    SPECTRALLY STABILIZED BROADBAND OPTICAL SOURCE 有权
    光谱稳定宽带光源

    公开(公告)号:US20090072128A1

    公开(公告)日:2009-03-19

    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。

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