Systems and methods for detecting electric discharge
    1.
    发明授权
    Systems and methods for detecting electric discharge 有权
    检测放电的系统和方法

    公开(公告)号:US07668412B2

    公开(公告)日:2010-02-23

    申请号:US12288663

    申请日:2008-10-22

    申请人: Chung Lee Kent Kalar

    发明人: Chung Lee Kent Kalar

    IPC分类号: G02B6/00 G01N25/00

    摘要: A distributed sensing system for detecting partial electric discharge along the length of an extended object or objects. An optical fiber having a cladding integrated with luminescent material and a silica core of less than 500 micro-meters in diameter with a first reflective end deployed in proximity to test objects. A photo detector is positioned at the second end of the optical sensing fiber and receives and measures both a direct emission light from an electric partial discharge event and the reflected emission light from the reflection end of the optical sensing fiber. The measured signals and their arrival times are used to determine the location and magnitude of a partial electrical discharge.

    摘要翻译: 一种用于沿着扩展对象或物体的长度检测局部放电的分布式感测系统。 一种光纤,其具有与发光材料集成的包层和直径小于500微米的二氧化硅核心,第一反射端部分设置在测试对象附近。 光检测器位于光学感测光纤的第二端,并且接收并测量来自电部分放电事件的直接发射光和来自光学感测光纤的反射端的反射发射光。 测量信号及其到达时间用于确定部分放电的位置和幅度。

    Methods and apparatus for dual source calibration for distributed temperature systems
    2.
    发明授权
    Methods and apparatus for dual source calibration for distributed temperature systems 有权
    分布式温度系统双源校准的方法和装置

    公开(公告)号:US07628531B2

    公开(公告)日:2009-12-08

    申请号:US11685637

    申请日:2007-03-13

    摘要: Systems and methods for calibrating a temperature sensing system are disclosed. In one respect, a dual light source configuration may be provided. A first light source may illuminate a sensing fiber and an anti-Stokes band may be detected. A second light source may illuminate a sensing fiber and a Stokes band may be detected, where the Stokes band is substantially similar to the anti-Stokes band of the first light source. A ratio between the anti-Stokes and Stokes band may be used to calibrate a temperature sensing system.

    摘要翻译: 公开了用于校准温度感测系统的系统和方法。 在一个方面,可以提供双光源配置。 第一光源可以照亮感测光纤并且可以检测到反斯托克斯带。 第二光源可以照亮感测光纤,并且可以检测斯托克斯带,其中斯托克斯带基本上类似于第一光源的反斯托克斯带。 反斯托克斯和斯托克斯带之间的比率可用于校准温度感测系统。

    Methods and apparatus for calibrating distributed fiber temperature sensing system
    3.
    发明授权
    Methods and apparatus for calibrating distributed fiber temperature sensing system 有权
    校准分布式光纤温度传感系统的方法和装置

    公开(公告)号:US07526397B2

    公开(公告)日:2009-04-28

    申请号:US11685628

    申请日:2007-03-13

    IPC分类号: G01K15/00

    CPC分类号: G01K11/32 G01K15/00

    摘要: Systems and methods for calibrating a temperature sensing system are disclosed. In one respect, a line may be placed in operative relation with a first reference cell and a second reference cell. The temperatures of the first and second reference cells may be adjusted. In one non-limiting example, the temperature of the first reference cell may be adjusted to a temperature above an ambient temperature and the temperature of the second reference cell may be adjusted to a temperature below an ambient temperature. The temperature sensing system may be calibrated based on the temperature data of the first and second reference cells.

    摘要翻译: 公开了用于校准温度感测系统的系统和方法。 在一个方面,线可以与第一参考单元和第二参考单元处于操作关系。 可以调节第一和第二参考单元的温度。 在一个非限制性实例中,第一参考电池的温度可以被调节到高于环境温度的温度,并且可以将第二参考电池的温度调节到低于环境温度的温度。 可以基于第一和第二参考单元的温度数据来校准温度感测系统。

    Methods and systems for extending the range for fiber optic distributed temperature (DTS) systems
    4.
    发明授权
    Methods and systems for extending the range for fiber optic distributed temperature (DTS) systems 有权
    扩展光纤分布式温度(DTS)系统范围的方法和系统

    公开(公告)号:US08333505B2

    公开(公告)日:2012-12-18

    申请号:US12735356

    申请日:2009-01-17

    IPC分类号: G01K3/00

    CPC分类号: G01K11/32

    摘要: Systems and methods for extending the range of a fiber optic DTS system are provided. In one respect, a method may provide steps for transmitting, in a first time period, an optical signal at a first energy level through an optical fiber, collecting backscatter signals as a result of the first transmission, adjusting the first energy level to a second energy level, transmitting, in an additional time period, the adjusted optical signal through the optical fiber, collecting backscatter signals as a result of the adjusted transmissions, and using a portion of the collected backscatter as a result of the first transmission and a portion of the collected backscatter as a result of the additional transmissions, determining one or more parameter profiles, such as a temperature profile.

    摘要翻译: 提供了用于扩展光纤DTS系统范围的系统和方法。 在一个方面,一种方法可以提供在第一时间段内通过光纤在第一能级发射光信号的步骤,作为第一传输的结果收集反向散射信号,将第一能级调整到第二能级 能量水平,在额外的时间段内通过光纤传输经调整的光信号,作为经调整的传输的结果收集后向散射信号,并且作为第一次传输的结果使用收集的反向散射的一部分, 作为附加传输的结果的收集的反向散射,确定一个或多个参数分布,诸如温度分布。

    Auto-correcting or self-calibrating DTS temperature sensing systems and methods
    5.
    发明申请
    Auto-correcting or self-calibrating DTS temperature sensing systems and methods 审中-公开
    自动校正或自校正DTS温度传感系统和方法

    公开(公告)号:US20110231135A1

    公开(公告)日:2011-09-22

    申请号:US12998200

    申请日:2009-09-25

    IPC分类号: G01K15/00 G06F19/00

    摘要: An automatic auto-correcting method is presented to improve the accuracy of fiber optic distributed temperature measurements derived from Raman back scatterings utilizing two light sources with different wavelengths, by appropriate choice of the wavelengths of the two sources, the use of single pulse modulating circuit for the two light sources, and use of one of the light sources as a primary measurement system and the second light source as an occasional correcting source.

    摘要翻译: 提出了一种自动自动校正方法,通过适当选择两个源的波长,提高使用两个具有不同波长的光源的拉曼散射的光纤分布温度测量的精度,使用单脉冲调制电路 两个光源,并且使用一个光源作为主要测量系统,将第二光源用作偶尔的校正源。

    PURE SILICA CORE MULTIMODE FIBER SENSOES FOR DTS APPICATIONS
    6.
    发明申请
    PURE SILICA CORE MULTIMODE FIBER SENSOES FOR DTS APPICATIONS 有权
    纯硅胶多芯片光纤信号用于DTS应用

    公开(公告)号:US20100103978A1

    公开(公告)日:2010-04-29

    申请号:US12451866

    申请日:2008-07-18

    IPC分类号: G01K3/00

    CPC分类号: G01K11/32 G02B6/02004

    摘要: A new step-index multimode pure silica core fiber for DTS (Distributed Temperature Sensing) system particularly useful for downhole environments is disclosed and described. The new sensor system provides optimum tradeoffs between coupling power, spatial resolution, and temperature resolution.

    摘要翻译: 公开和描述了一种用于DTS(分布式温度感测)系统的新的步进折射率多模纯硅芯光纤,特别适用于井下环境。 新的传感器系统提供耦合功率,空间分辨率和温度分辨率之间的最佳折衷。

    METHODS AND APPARATUS FOR DUAL SOURCE CALIBRATION FOR DISTRIBUTED TEMPERATURE SYSTEMS
    7.
    发明申请
    METHODS AND APPARATUS FOR DUAL SOURCE CALIBRATION FOR DISTRIBUTED TEMPERATURE SYSTEMS 有权
    用于分布式温度系统的双源校准的方法和装置

    公开(公告)号:US20070223556A1

    公开(公告)日:2007-09-27

    申请号:US11685637

    申请日:2007-03-13

    IPC分类号: G01K15/00 G01K19/00 G01K11/00

    摘要: Systems and methods for calibrating a temperature sensing system are disclosed. In one respect, a dual light source configuration may be provided. A first light source may illuminate a sensing fiber and an anti-Stokes band may be detected. A second light source may illuminate a sensing fiber and a Stokes band may be detected, where the Stokes band is substantially similar to the anti-Stokes band of the first light source. A ratio between the anti-Stokes and Stokes band may be used to calibrate a temperature sensing system.

    摘要翻译: 公开了用于校准温度感测系统的系统和方法。 在一个方面,可以提供双光源配置。 第一光源可以照亮感测光纤并且可以检测到反斯托克斯带。 第二光源可以照亮感测光纤,并且可以检测斯托克斯带,其中斯托克斯带基本上类似于第一光源的反斯托克斯带。 反斯托克斯和斯托克斯带之间的比率可用于校准温度感测系统。

    Multi Wavelength DTS Fiber Window with PSC Fiber
    10.
    发明申请
    Multi Wavelength DTS Fiber Window with PSC Fiber 审中-公开
    具有PSC光纤的多波长DTS光纤窗口

    公开(公告)号:US20130003777A1

    公开(公告)日:2013-01-03

    申请号:US13635295

    申请日:2011-03-19

    IPC分类号: G01K15/00

    CPC分类号: E21B47/123

    摘要: A DTS system resistant to hydrogen induced attenuation losses during the service life of an installation at both low and high temperatures using matched multi-wavelength DTS automatic calibration technology in combination with designed hydrogen tolerant Pure Silica Core (PSC) optical fibers.

    摘要翻译: 使用匹配的多波长DTS自动校准技术与设计的耐氢纯硅芯(PSC)光纤相结合,在低温和高温下,在设备的使用寿命期间,耐氢的DTS系统会导致衰减损耗。