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    SPECTRALLY STABILIZED BROADBAND OPTICAL SOURCE
    3.
    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

    申请人： Trevor MacDougall ,  Domino Taverner

    发明人： Trevor MacDougall ,  Domino Taverner

    IPC分类号： G01N21/25

    CPC分类号： G01J3/36 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/027 ,  G01J3/1895 ,  G01J3/427 ,  G01J3/50 ,  G01J3/505

    摘要： 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.

    摘要翻译： 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。

    Corrected DTS measurements based on Raman-Stokes signals
    4.
    发明授权
    Corrected DTS measurements based on Raman-Stokes signals 有权
    基于拉曼 - 斯托克斯信号校正DTS测量

    公开(公告)号：US07585107B2

    公开(公告)日：2009-09-08

    申请号：US11333044

    申请日：2006-01-17

    申请人： Domino Taverner ,  Trevor MacDougall

    发明人： Domino Taverner ,  Trevor MacDougall

    IPC分类号： G01K1/16 ,  G01J5/00

    CPC分类号： G01K11/32 ,  G01K2011/324 ,  G01K2213/00

    摘要： Methods and apparatus allowing distributed temperature sensing (DTS) measurements to be compensated for differential and/or varying loss between Raman Stokes and anti-Stokes signals are provided. By irradiating an optical waveguide with signals at wavelengths at or near the Raman Stokes and anti-Stokes bands, a distributed loss profile for the waveguide may be generated. This distributed loss profile may be used to adjust the amplitudes or amplitude ratios of Raman Stokes and anti-Stokes signals used in DTS measurements, which may lead to more accurate DTS profiles.

    摘要翻译： 提供了允许分布式温度感测（DTS）测量补偿拉曼斯托克斯和反斯托克斯信号之间的差分和/或变化损失的方法和装置。 通过用波长在拉曼斯托克斯和反斯托克斯波段附近的信号照射光波导，可以产生波导的分布损耗曲线。 这种分布式损耗曲线可用于调整在DTS测量中使用的拉曼斯托克斯和反斯托克斯信号的幅度或振幅比，这可能导致更精确的DTS曲线。

    Multi-core strain compensated optical fiber temperature sensor
    5.
    发明授权
    Multi-core strain compensated optical fiber temperature sensor 失效
    多芯应变补偿光纤温度传感器

    公开(公告)号：US07512292B2

    公开(公告)日：2009-03-31

    申请号：US11531145

    申请日：2006-09-12

    申请人： Trevor MacDougall ,  Edward Dowd ,  Domino Taverner

    发明人： Trevor MacDougall ,  Edward Dowd ,  Domino Taverner

    IPC分类号： G02B6/00 ,  G02B6/22 ,  G02B6/34

    CPC分类号： G02B6/02042 ,  G01K11/3206 ,  G02B6/02057

    摘要： Methods and apparatus for discrete point temperature sensing include a temperature sensor that can be part of an array of temperature sensors for location in a wellbore. A single unitary ribbon-like structure can form the temperature sensor that has separate optical cores possessing different characteristics such that one core is unique from another core. Each core has a reflective grating disposed therein such that the wavelength of light reflected by the gratings is in response to temperature and any strain applied to the sensor from a surrounding environment. For some embodiments, the responses to strain from each of the gratings are similar while the responses from each of the gratings to temperature are dissimilar due to the different characteristics of the cores. These responses provided separately by each grating therefore enable compensation for strain in order to provide an accurate temperature measurement at the sensor.

    摘要翻译： 用于离散点温度感测的方法和装置包括温度传感器，其可以是用于在井眼中定位的温度传感器阵列的一部分。 一个单一的带状结构可以形成温度传感器，该温度传感器具有独立的光学核心，其具有不同的特性，使得一个核心与另一个核心是唯一的。 每个芯具有设置在其中的反射光栅，使得由光栅反射的光的波长响应于来自周围环境的温度和施加到传感器的任何应变。 对于一些实施例，来自每个光栅的对应变的响应是相似的，而来自每个光栅到温度的响应由于芯的不同特性而不相似。 因此，通过每个光栅分开提供的这些响应使得能够对应变进行补偿，以便在传感器处提供准确的温度测量。

    MULTI-CORE STRAIN COMPENSATED OPTICAL FIBER TEMPERATURE SENSOR
    6.
    发明申请
    MULTI-CORE STRAIN COMPENSATED OPTICAL FIBER TEMPERATURE SENSOR 失效
    多芯应变补偿光纤温度传感器

    公开(公告)号：US20080063337A1

    公开(公告)日：2008-03-13

    申请号：US11531145

    申请日：2006-09-12

    申请人： TREVOR MACDOUGALL ,  Edward Dowd ,  Domino Taverner

    发明人： TREVOR MACDOUGALL ,  Edward Dowd ,  Domino Taverner

    IPC分类号： G02B6/00

    CPC分类号： G02B6/02042 ,  G01K11/3206 ,  G02B6/02057

    摘要： Methods and apparatus for discrete point temperature sensing include a temperature sensor that can be part of an array of temperature sensors for location in a wellbore. A single unitary ribbon-like structure can form the temperature sensor that has separate optical cores possessing different characteristics such that one core is unique from another core. Each core has a reflective grating disposed therein such that the wavelength of light reflected by the gratings is in response to temperature and any strain applied to the sensor from a surrounding environment. For some embodiments, the responses to strain from each of the gratings are similar while the responses from each of the gratings to temperature are dissimilar due to the different characteristics of the cores. These responses provided separately by each grating therefore enable compensation for strain in order to provide an accurate temperature measurement at the sensor.

    摘要翻译： 用于离散点温度感测的方法和装置包括温度传感器，其可以是用于在井眼中定位的温度传感器阵列的一部分。 一个单一的带状结构可以形成温度传感器，该温度传感器具有独立的光学核心，其具有不同的特性，使得一个核心与另一个核心是唯一的。 每个芯具有布置在其中的反射光栅，使得由光栅反射的光的波长响应于来自周围环境的温度和施加到传感器的任何应变。 对于一些实施例，来自每个光栅的对应变的响应是相似的，而来自每个光栅到温度的响应由于芯的不同特性而不相似。 因此，通过每个光栅分开提供的这些响应使得能够对应变进行补偿，以便在传感器处提供准确的温度测量。

    Corrected DTS measurements based on Raman-Stokes signals
    7.
    发明申请
    Corrected DTS measurements based on Raman-Stokes signals 有权
    基于拉曼 - 斯托克斯信号校正DTS测量

    公开(公告)号：US20070165691A1

    公开(公告)日：2007-07-19

    申请号：US11333044

    申请日：2006-01-17

    申请人： Domino Taverner ,  Trevor MacDougall

    发明人： Domino Taverner ,  Trevor MacDougall

    IPC分类号： G01K1/16

    CPC分类号： G01K11/32 ,  G01K2011/324 ,  G01K2213/00

    摘要： Methods and apparatus allowing distributed temperature sensing (DTS) measurements to be compensated for differential and/or varying loss between Raman Stokes and anti-Stokes signals are provided. By irradiating an optical waveguide with signals at wavelengths at or near the Raman Stokes and anti-Stokes bands, a distributed loss profile for the waveguide may be generated. This distributed loss profile may be used to adjust the amplitudes or amplitude ratios of Raman Stokes and anti-Stokes signals used in DTS measurements, which may lead to more accurate DTS profiles.

    摘要翻译： 提供了允许分布式温度感测（DTS）测量补偿拉曼斯托克斯和反斯托克斯信号之间的差分和/或变化损失的方法和装置。 通过用波长在拉曼斯托克斯和反斯托克斯波段附近的信号照射光波导，可以产生波导的分布损耗曲线。 这种分布式损耗曲线可用于调整在DTS测量中使用的拉曼斯托克斯和反斯托克斯信号的幅度或振幅比，这可能导致更精确的DTS曲线。

    Polarization mitigation technique
    8.
    发明授权
    Polarization mitigation technique 有权
    极化缓解技术

    公开(公告)号：US07173696B2

    公开(公告)日：2007-02-06

    申请号：US10672289

    申请日：2003-09-26

    申请人： Domino Taverner ,  Trevor MacDougall

    发明人： Domino Taverner ,  Trevor MacDougall

    IPC分类号： G01J3/28

    CPC分类号： H04B10/2572 ,  G01J3/0224 ,  G01J3/1895 ,  G01J3/28

    摘要： 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.

    摘要翻译： 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。

    Multi-core strain compensated optical fiber temperature sensor
    9.
    发明授权
    Multi-core strain compensated optical fiber temperature sensor 有权
    多芯应变补偿光纤温度传感器

    公开(公告)号：US07903908B2

    公开(公告)日：2011-03-08

    申请号：US12415635

    申请日：2009-03-31

    申请人： Trevor MacDougall ,  Edward Dowd ,  Domino Taverner

    发明人： Trevor MacDougall ,  Edward Dowd ,  Domino Taverner

    IPC分类号： G02B6/00 ,  G02B6/34

    CPC分类号： G02B6/02042 ,  G01K11/3206 ,  G02B6/02057

    摘要： Methods and apparatus for discrete point temperature sensing include a temperature sensor that can be part of an array of temperature sensors for location in a wellbore. A single unitary ribbon-like structure can form the temperature sensor that has separate optical cores possessing different characteristics such that one core is unique from another core. Each core has a reflective grating disposed therein such that the wavelength of light reflected by the gratings is in response to temperature and any strain applied to the sensor from a surrounding environment. For some embodiments, the responses to strain from each of the gratings are similar while the responses from each of the gratings to temperature are dissimilar due to the different characteristics of the cores. These responses provided separately by each grating therefore enable compensation for strain in order to provide an accurate temperature measurement at the sensor.

    摘要翻译： 用于离散点温度感测的方法和装置包括温度传感器，其可以是用于在井眼中定位的温度传感器阵列的一部分。 一个单一的带状结构可以形成温度传感器，该温度传感器具有独立的光学核心，其具有不同的特性，使得一个核心与另一个核心是唯一的。 每个芯具有布置在其中的反射光栅，使得由光栅反射的光的波长响应于来自周围环境的温度和施加到传感器的任何应变。 对于一些实施例，来自每个光栅的对应变的响应是相似的，而来自每个光栅到温度的响应由于芯的不同特性而不相似。 因此，通过每个光栅分开提供的这些响应使得能够对应变进行补偿，以便在传感器处提供准确的温度测量。

    MULTI-CORE STRAIN COMPENSATED OPTICAL FIBER TEMPERATURE SENSOR
    10.
    发明申请
    MULTI-CORE STRAIN COMPENSATED OPTICAL FIBER TEMPERATURE SENSOR 有权
    多芯应变补偿光纤温度传感器

    公开(公告)号：US20090225807A1

    公开(公告)日：2009-09-10

    申请号：US12415635

    申请日：2009-03-31

    申请人： TREVOR MacDougall ,  Edward Dowd ,  Domino Taverner

    发明人： TREVOR MacDougall ,  Edward Dowd ,  Domino Taverner

    IPC分类号： G01K13/00 ,  G02B6/00

    CPC分类号： G02B6/02042 ,  G01K11/3206 ,  G02B6/02057

    摘要： Methods and apparatus for discrete point temperature sensing include a temperature sensor that can be part of an array of temperature sensors for location in a wellbore. A single unitary ribbon-like structure can form the temperature sensor that has separate optical cores possessing different characteristics such that one core is unique from another core. Each core has a reflective grating disposed therein such that the wavelength of light reflected by the gratings is in response to temperature and any strain applied to the sensor from a surrounding environment. For some embodiments, the responses to strain from each of the gratings are similar while the responses from each of the gratings to temperature are dissimilar due to the different characteristics of the cores. These responses provided separately by each grating therefore enable compensation for strain in order to provide an accurate temperature measurement at the sensor.

    摘要翻译： 用于离散点温度感测的方法和装置包括温度传感器，其可以是用于在井眼中定位的温度传感器阵列的一部分。 一个单一的带状结构可以形成温度传感器，该温度传感器具有独立的光学核心，其具有不同的特性，使得一个核心与另一个核心是唯一的。 每个芯具有布置在其中的反射光栅，使得由光栅反射的光的波长响应于来自周围环境的温度和施加到传感器的任何应变。 对于一些实施例，来自每个光栅的对应变的响应是相似的，而来自每个光栅到温度的响应由于芯的不同特性而不相似。 因此，通过每个光栅分开提供的这些响应使得能够对应变进行补偿，以便在传感器处提供准确的温度测量。