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    Strain and Temperature Discrimination Using Fiber Bragg Gratings in a Cross-Wire Configuration
    1.
    发明申请
    Strain and Temperature Discrimination Using Fiber Bragg Gratings in a Cross-Wire Configuration 有权
    使用光纤布拉格光栅在十字线配置中的应变和温度鉴别

    公开(公告)号：US20120176597A1

    公开(公告)日：2012-07-12

    申请号：US13376542

    申请日：2010-11-04

    申请人： Sundarrajan Asokan ,  Kalaga Venu Madhav ,  Aashia Rahman ,  Balaji Srinivasan

    发明人： Sundarrajan Asokan ,  Kalaga Venu Madhav ,  Aashia Rahman ,  Balaji Srinivasan

    IPC分类号： G01B11/16 ,  G02B6/00

    CPC分类号： G01K11/3206 ,  G01L1/246 ,  G02B6/02204

    摘要： A fiber Bragg grating cross-wire sensor may be used to independently determine strain and temperature variation. An example fiber Bragg grating cross-wire sensor comprises a first fiber Bragg grating (FBG) that reflects a first percentage, R1, of light of a first wavelength, λ1, and a second FBG that reflects a second percentage, R2, of light of a second wavelength, λ2. The second FBG is positioned orthogonal to the first FBG, and λ1 is substantially equal to λ2, but R1 is different from R2. As the FBG cross-wire sensor experiences a strain and/or a temperature variation, the wavelengths of light reflected by the first FBG and the second FBG will shift from the first and second wavelength, λ1 and λ2, to first and second shifted wavelengths, λA and λT, respectively. Based on R1, R2, λ1, λA, and λT, the strain and/or the temperature variation may be independently determined.

    摘要翻译： 可以使用光纤布拉格光栅交叉线传感器来独立地确定应变和温度变化。 示例性光纤布拉格光栅交叉线传感器包括第一光纤布拉格光栅（FBG），其反射第一波长λ1的第一百分比R1和反射第二波长λ1的第二百分比R2的第二FBG 第二波长λ2。 第二FBG与第一FBG正交，λ1基本上等于λ2，但R1不同于R2。 当FBG交叉线传感器经受应变和/或温度变化时，由第一FBG和第二FBG反射的光的波长将从第一和第二波长λ1和λ2移动到第一和第二移位波长， λA和λT。 基于R1，R2，λ1，λA和λT，可以独立地确定应变和/或温度变化。

    Strain and temperature discrimination using fiber bragg gratings in a cross-wire configuration
    3.
    发明授权
    Strain and temperature discrimination using fiber bragg gratings in a cross-wire configuration 有权
    应用和温度鉴别使用光纤布拉格光栅在交叉线配置

    公开(公告)号：US09267854B2

    公开(公告)日：2016-02-23

    申请号：US13376542

    申请日：2010-11-04

    申请人： Sundarrajan Asokan ,  Kalaga Venu Madhav ,  Aashia Rahman ,  Balaji Srinivasan

    发明人： Sundarrajan Asokan ,  Kalaga Venu Madhav ,  Aashia Rahman ,  Balaji Srinivasan

    IPC分类号： G01B11/16 ,  G02B6/00 ,  G01K11/32 ,  G02B6/02 ,  G01L1/24

    CPC分类号： G01K11/3206 ,  G01L1/246 ,  G02B6/02204

    摘要： A fiber Bragg grating cross-wire sensor may be used to independently determine strain and temperature variation. An example fiber Bragg grating cross-wire sensor comprises a first fiber Bragg grating (FBG) that reflects a first percentage, R1, of light of a first wavelength, λ1, and a second FBG that reflects a second percentage, R2, of light of a second wavelength, λ2. The second FBG is positioned orthogonal to the first FBG, and λ1 is substantially equal to λ2, but R1 is different from R2. As the FBG cross-wire sensor experiences a strain and/or a temperature variation, the wavelengths of light reflected by the first FBG and the second FBG will shift from the first and second wavelength, λ1 and λ2, to first and second shifted wavelengths, λA and λT, respectively. Based on R1, R2, λ1, λA, and λT, the strain and/or the temperature variation may be independently determined.

    摘要翻译： 可以使用光纤布拉格光栅交叉线传感器来独立地确定应变和温度变化。 示例性光纤布拉格光栅交叉线传感器包括第一光纤布拉格光栅（FBG），其反射第一波长λ1的第一百分比R1和反射第二波长λ1的第二百分比R2的第二FBG 第二波长λ2。 第二FBG与第一FBG正交，λ1基本上等于λ2，但R1不同于R2。 当FBG交叉线传感器经受应变和/或温度变化时，由第一FBG和第二FBG反射的光的波长将从第一和第二波长λ1和λ2移动到第一和第二移位波长， λA和λT。 基于R1，R2，λ1，λA和λT，可以独立地确定应变和/或温度变化。