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    Multi-core strain compensated optical fiber temperature sensor
    21.
    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

    Applicant: Trevor MacDougall ,  Edward Dowd ,  Domino Taverner

    Inventor： Trevor MacDougall ,  Edward Dowd ,  Domino Taverner

    IPC: G02B6/00 ,  G02B6/34

    CPC classification number: G02B6/02042 ,  G01K11/3206 ,  G02B6/02057

    Abstract: 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.

    Abstract translation: 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
    23.
    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

    Applicant: TREVOR MacDougall ,  Edward Dowd ,  Domino Taverner

    Inventor： TREVOR MacDougall ,  Edward Dowd ,  Domino Taverner

    IPC: G01K13/00 ,  G02B6/00

    CPC classification number: G02B6/02042 ,  G01K11/3206 ,  G02B6/02057

    Abstract: 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.

    Abstract translation: 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。

    LOCATION MARKER FOR DISTRIBUTED TEMPERATURE SENSING SYSTEMS
    24.
    发明申请
    LOCATION MARKER FOR DISTRIBUTED TEMPERATURE SENSING SYSTEMS 有权
    分布式温度感测系统的位置标记

    公开(公告)号：US20090202192A1

    公开(公告)日：2009-08-13

    申请号：US12028401

    申请日：2008-02-08

    Applicant: Domino Taverner ,  John J. Grunbeck

    Inventor： Domino Taverner ,  John J. Grunbeck

    IPC: G01K3/00 ,  G02B6/00

    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。

    Optical wavelength determination using multiple measurable features
    27.
    发明授权
    Optical wavelength determination using multiple measurable features 有权
    使用多个可测量特征的光波长测定

    公开(公告)号：US07109471B2

    公开(公告)日：2006-09-19

    申请号：US10862006

    申请日：2004-06-04

    Applicant: Domino Taverner

    Inventor： Domino Taverner

    IPC: G01J1/04 ,  G02B6/00

    CPC classification number: G01J3/26 ,  G01J3/1895 ,  G01J9/02 ,  G01J2003/2866

    Abstract: A method and apparatus for quickly and accurately determining optical wavelengths using multiple features of an optical spectrum produced by an optical element that is configured to produce an optical spectrum having multiple resolvable features. Finding the mean of the measured values of the multiple resolvable features may provide an improved characterizing measurement of the element. Examples of optical elements suitable for use in the present invention include, but are not limited to, super-structured fiber Bragg gratings, multiple fiber Bragg gratings, Fabry-Perot etalons and gas cells.

    Abstract translation: 一种用于使用被配置为产生具有多个可分辨特征的光谱的光学元件产生的光谱的多个特征快速且准确地确定光学波长的方法和装置。 找到多个可分辨特征的测量值的平均值可以提供元素的改进的表征测量。 适用于本发明的光学元件的示例包括但不限于超结构光纤布拉格光栅，多光纤布拉格光栅，法布里 - 珀罗标准具和气体电池。

    Polarization mitigation technique
    28.
    发明申请
    Polarization mitigation technique 有权
    极化缓解技术

    公开(公告)号：US20050068525A1

    公开(公告)日：2005-03-31

    申请号：US10672289

    申请日：2003-09-26

    Applicant: Domino Taverner ,  Trevor MacDougall

    Inventor： Domino Taverner ,  Trevor MacDougall

    IPC: G01J3/28 ,  H04B10/135

    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。

    Method and apparatus for optical noise cancellation
    29.
    发明申请
    Method and apparatus for optical noise cancellation 审中-公开
    光学噪声消除的方法和装置

    公开(公告)号：US20050058457A1

    公开(公告)日：2005-03-17

    申请号：US10662969

    申请日：2003-09-15

    Applicant: Trevor MacDougall ,  Domino Taverner

    Inventor： Trevor MacDougall ,  Domino Taverner

    IPC: H04B10/18 ,  H04B10/12

    CPC classification number: H04B10/2513

    Abstract: A method and apparatus for removing optical noise from an optical system. A light source produces optical signals applied to a remote optical element that produces reflected optical signals and is subject to optical background noise such as reflections from splices and optical connections. Part of the reflected optical signals and at least some of the background noise is applied to a receiver. The receiver output is analyzed to determine either the amount of noise (if broadband) or the frequency components of the noise. If broadband, the noise is subtracted from the composite signal, thus increasing the signal to noise ratio. If periodic, the frequency components of the noise are gated out of the receiver output.

    Abstract translation: 一种用于从光学系统去除光学噪声的方法和装置。 光源产生施加到产生反射光信号的远程光学元件的光信号，并且经受光背景噪声，例如来自接头和光连接的反射。 一部分反射的光信号和至少一些背景噪声被施加到接收机。 分析接收机输出以确定噪声量（如果宽带）或噪声的频率分量。 如果宽带，则从复合信号中减去噪声，从而增加信噪比。 如果是周期性的，噪声的频率分量将从接收器输出中选通。

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