Damage detection system
    1.
    发明申请
    Damage detection system 有权
    损伤检测系统

    公开(公告)号:US20070200057A1

    公开(公告)日:2007-08-30

    申请号:US11708842

    申请日:2007-02-21

    IPC分类号: G01J1/42

    摘要: A damage detection system including: a optical fiber sensor including a core portion to have a grating portion formed therein, the grating portion having gratings reflecting light, wherein a wavelength band of the reflected light changes when a distance between adjacent gratings changes; a light source to input broadband light into the core portion; two optical filters connected to an output end of the sensor; and an apparatus to perform arithmetic processing on output values of the optical filters, wherein each passband of the optical filters overlaps with the vibration range of the wavelength band, in which a center wavelength of one of the passbands is fixed to an upper area of a vibration center of a center wavelength of the reflected light and that of the other of the passbands is fixed to a lower area thereof.

    摘要翻译: 一种损伤检测系统,包括:光纤传感器,包括具有形成在其中的光栅部分的芯部分,光栅部分具有反射光的光栅,其中当相邻光栅之间的距离改变时反射光的波长带改变; 用于将宽带光输入到核心部分中的光源; 两个滤光器连接到传感器的输出端; 以及对所述滤光器的输出值执行运算处理的装置,其中所述滤光器的每个通带与所述波长带的振动范围重叠,其中所述通带中的一个的中心波长固定在所述波长带的上部区域 反射光的中心波长的振动中心和另一个通带的振动中心固定在其下部区域。

    Damage detection system
    2.
    发明授权
    Damage detection system 有权
    损伤检测系统

    公开(公告)号:US07470888B2

    公开(公告)日:2008-12-30

    申请号:US11708842

    申请日:2007-02-21

    IPC分类号: G01J1/04 G01J1/42 G01J5/08

    摘要: A damage detection system including: a optical fiber sensor including a core portion to have a grating portion formed therein, the grating portion having gratings reflecting light, wherein a wavelength band of the reflected light changes when a distance between adjacent gratings changes; a light source to input broadband light into the core portion; two optical filters connected to an output end of the sensor; and an apparatus to perform arithmetic processing on output values of the optical filters, wherein each passband of the optical filters overlaps with the vibration range of the wavelength band, in which a center wavelength of one of the passbands is fixed to an upper area of a vibration center of a center wavelength of the reflected light and that of the other of the passbands is fixed to a lower area thereof.

    摘要翻译: 一种损伤检测系统,包括:光纤传感器,包括具有形成在其中的光栅部分的芯部分,光栅部分具有反射光的光栅,其中当相邻光栅之间的距离改变时反射光的波长带改变; 用于将宽带光输入到核心部分中的光源; 两个滤光器连接到传感器的输出端; 以及对所述滤光器的输出值执行运算处理的装置,其中所述滤光器的每个通带与所述波长带的振动范围重叠,其中所述通带中的一个的中心波长固定在所述波长带的上部区域 反射光的中心波长的振动中心和另一个通带的振动中心固定在其下部区域。

    Impact detection system using an optical fiber sensor
    3.
    发明授权
    Impact detection system using an optical fiber sensor 有权
    使用光纤传感器的冲击检测系统

    公开(公告)号:US07696471B2

    公开(公告)日:2010-04-13

    申请号:US11987533

    申请日:2007-11-30

    IPC分类号: G01J1/04 G01J1/42 G01J5/08

    CPC分类号: G01M11/083 G01D5/35303

    摘要: Disclosed is an impact detection system including: an optical fiber including a plurality of sensor sections to reflect light, a wavelength band of the reflected light vibrates depending on an elastic wave propagating through a subject to be inspected; a light source to input light into the optical fiber; optical filters each connected to an output terminal of the optical fiber; and an arithmetic processing unit to detect the impact from output values of sensor sections, wherein the wavelength bands of the sensor sections in the optical fiber are distributed such that the vibration bands caused by the impact to be detected do not overlap with each other, and a pass band of the optical filter corresponding to one of the sensor sections is distributed in the vibration band caused by the detection object, and is distributed in both sides of a center of the wavelength band of the one sensor section.

    摘要翻译: 公开了一种冲击检测系统,包括:包括反射光的多个传感器部分的光纤,所述反射光的波长带根据通过要检查的被摄体传播的弹性波而振动; 用于将光输入到光纤中的光源; 各自连接到光纤的输出端子的滤光器; 以及算术处理单元,用于检测传感器部分的输出值的影响,其中光纤中的传感器部分的波长带被分布成使得由待检测的冲击引起的振动带彼此不重叠, 与其中一个传感器部分相对应的滤光器的通带分布在由检测对象引起的振动带中,并分布在一个传感器部分的波长带的中心的两侧。

    Impact detection system
    4.
    发明申请
    Impact detection system 有权
    冲击检测系统

    公开(公告)号:US20080128600A1

    公开(公告)日:2008-06-05

    申请号:US11987533

    申请日:2007-11-30

    IPC分类号: G01L1/24

    CPC分类号: G01M11/083 G01D5/35303

    摘要: Disclosed is an impact detection system including: an optical fiber including a plurality of sensor sections to reflect light, a wavelength band of the reflected light vibrates depending on an elastic wave propagating through a subject to be inspected; a light source to input light into the optical fiber; optical filters each connected to an output terminal of the optical fiber; and an arithmetic processing unit to detect the impact from output values of sensor sections, wherein the wavelength bands of the sensor sections in the optical fiber are distributed such that the vibration bands caused by the impact to be detected do not overlap with each other, and a pass band of the optical filter corresponding to one of the sensor sections is distributed in the vibration band caused by the detection object, and is distributed in both sides of a center of the wavelength band of the one sensor section.

    摘要翻译: 公开了一种冲击检测系统,包括:包括反射光的多个传感器部分的光纤,所述反射光的波长带根据通过要检查的被摄体传播的弹性波而振动; 用于将光输入到光纤中的光源; 各自连接到光纤的输出端子的滤光器; 以及算术处理单元,用于检测传感器部分的输出值的影响,其中光纤中的传感器部分的波长带被分布成使得由待检测的冲击引起的振动带彼此不重叠, 与其中一个传感器部分相对应的滤光器的通带分布在由检测对象引起的振动带中,并分布在一个传感器部分的波长带的中心的两侧。

    Damage detection system for structural composite material and method of detecting damage to structural composite material
    5.
    发明授权
    Damage detection system for structural composite material and method of detecting damage to structural composite material 有权
    结构复合材料损伤检测系统及结构复合材料损伤检测方法

    公开(公告)号:US07176448B2

    公开(公告)日:2007-02-13

    申请号:US10947312

    申请日:2004-09-23

    IPC分类号: G01J1/04

    摘要: Damage caused to a structural composite material is detected while reduction in the strength thereof is prevented. A damage detection system 10 for a structural composite material includes a vibration application apparatus 20 including: a sheet body 22; a plurality of piezo elements 21 sprinkled throughout and held by the sheet body 22; and wires 23 for the piezo elements 21 provided to the sheet body 22. The damage detection system 10 also includes: a fiber optic sensor 30 which includes a grating portion 33 in a core portion 32 thereof, the grating portion 33 reflecting light of a predetermined wavelength; a light source to perform light irradiation onto the core portion 32; and a characteristic detection unit 42 to detect a characteristic of the light reflected from the grating portion 33.

    摘要翻译: 检测到对结构复合材料造成的损伤,同时防止其强度降低。 用于结构复合材料的损伤检测系统10包括:振动施加装置20,包括:片体22; 由片体22遍布并保持的多个压电元件21; 以及设置在片体22上的压电元件21的导线23。 损伤检测系统10还包括:光纤传感器30,其在其芯部32中包括光栅部分33,光栅部分33反射预定波长的光; 用于对芯部32进行光照射的光源; 以及检测从光栅部33反射的光的特性的特性检测部42。

    Impact detection system with three or more optical fiber sensors
    6.
    发明授权
    Impact detection system with three or more optical fiber sensors 有权
    具有三个或更多光纤传感器的冲击检测系统

    公开(公告)号:US07633052B2

    公开(公告)日:2009-12-15

    申请号:US11987531

    申请日:2007-11-30

    IPC分类号: G01J1/04 G01J1/42 G01J5/08

    CPC分类号: G01M11/083

    摘要: Disclosed an impact detection system including: three or more optical fiber sensors disposed respectively in different positions, the sensors not being in alignment with one another, in which the sensors each includes a core portion to have a grating portion formed therein, the grating portion has a plurality of gratings; light source; two or more optical filters having different pass bands to one another to an output light of one of the optical fiber sensors; and an arithmetic processing apparatus to perform arithmetic processing of output values of the three or more optical fiber sensors through the optical filters so as to specify a position on the subject where an impact is loaded, the output values being obtained when the impact is loaded on the subject.

    摘要翻译: 公开了一种冲击检测系统,包括:分别设置在不同位置的三个或更多个光纤传感器,所述传感器彼此不对准,其中所述传感器各自包括具有形成在其中的光栅部分的芯部分,所述光栅部分具有 多个光栅; 光源; 两个或更多个光滤波器彼此具有彼此不同的通带至光纤传感器之一的输出光; 以及算术处理装置,通过光学滤波器对三个以上的光纤传感器的输出值进行运算处理,以指定对象上的冲击加载位置,当冲击加载时得到的输出值 主题。

    Impact detection system
    7.
    发明申请
    Impact detection system 有权
    冲击检测系统

    公开(公告)号:US20080129982A1

    公开(公告)日:2008-06-05

    申请号:US11987531

    申请日:2007-11-30

    IPC分类号: G01N21/00

    CPC分类号: G01M11/083

    摘要: Disclosed an impact detection system including: three or more optical fiber sensors disposed respectively in different positions, the sensors not being in alignment with one another, in which the sensors each includes a core portion to have a grating portion formed therein, the grating portion has a plurality of gratings; light source; two or more optical filters having different pass bands to one another to an output light of one of the optical fiber sensors; and an arithmetic processing apparatus to perform arithmetic processing of output values of the three or more optical fiber sensors through the optical filters so as to specify a position on the subject where an impact is loaded, the output values being obtained when the impact is loaded on the subject.

    摘要翻译: 公开了一种冲击检测系统,包括:分别设置在不同位置的三个或更多个光纤传感器,所述传感器彼此不对准,其中所述传感器各自包括具有形成在其中的光栅部分的芯部分,所述光栅部分具有 多个光栅; 光源; 两个或更多个光滤波器彼此具有彼此不同的通带至光纤传感器之一的输出光; 以及算术处理装置,通过光学滤波器对三个以上的光纤传感器的输出值进行运算处理,以指定对象上的冲击加载位置,当冲击加载时得到的输出值 主题。

    Damage detection system for structural composite material and methd of detecting damage to structural composite material
    8.
    发明申请
    Damage detection system for structural composite material and methd of detecting damage to structural composite material 有权
    结构复合材料损伤检测系统和结构复合材料检测损伤检测方法

    公开(公告)号:US20050067559A1

    公开(公告)日:2005-03-31

    申请号:US10947312

    申请日:2004-09-23

    摘要: Damage caused to a structural composite material is detected while reduction in the strength thereof is prevented. A damage detection system 10 for a structural composite material includes a vibration application apparatus 20 including: a sheet body 22; a plurality of piezo elements 21 sprinkled throughout and held by the sheet body 22; and wires 23 for the piezo elements 21 provided to the sheet body 22. The damage detection system 10 also includes: a fiber optic sensor 30 which includes a grating portion 33 in a core portion 32 thereof, the grating portion 33 reflecting light of a predetermined wavelength; a light source to perform light irradiation onto the core portion 32; and a characteristic detection unit 42 to detect a characteristic of the light reflected from the grating portion 33.

    摘要翻译: 检测到对结构复合材料造成的损伤,同时防止其强度降低。 用于结构复合材料的损伤检测系统10包括:振动施加装置20,包括:片体22; 由片体22遍布并保持的多个压电元件21; 以及用于设置在片体22上的压电元件21的导线23.损伤检测系统10还包括:光纤传感器30,其在其芯部32中包括光栅部分33,光栅部分33反射预定 波长; 用于对芯部32进行光照射的光源; 以及检测从光栅部33反射的光的特性的特性检测部42。

    Repairing method, repairing structure and connecting structure of embedded optical fiber of composite material structure
    9.
    发明授权
    Repairing method, repairing structure and connecting structure of embedded optical fiber of composite material structure 有权
    复合材料结构嵌入式光纤修复方法,修复结构及连接结构

    公开(公告)号:US08746991B2

    公开(公告)日:2014-06-10

    申请号:US13486649

    申请日:2012-06-01

    IPC分类号: G02B6/255

    摘要: A method of repairing an embedded optical fiber of a composite material structure including an embedded optical fiber embedded in a composite material, includes removing a portion of the composite material including a damaged portion of the embedded optical fiber to form an opening portion; polishing an end surface of the embedded optical fiber exposed in the opening portion and an end surface of the composite material exposed in the opening portion; and performing position adjustment such that a core of the polished embedded optical fiber and a core of a replacement optical fiber are aligned with each other, butting the end surface of the embedded optical fiber and an end surface of the replacement optical fiber with each other, and connecting the end surface of the embedded optical fiber and the end surface of the replacement optical fiber together.

    摘要翻译: 一种修复嵌入复合材料的嵌入式光纤的复合材料结构的嵌入式光纤的方法,包括去除包含嵌入式光纤的受损部分的复合材料的一部分,形成开口部; 抛光露出在开口部分中的嵌入式光纤的端面和暴露在开口部分中的复合材料的端面; 并且进行位置调整,使得抛光的嵌入式光纤的芯和替换光纤的芯彼此对准,使嵌入式光纤的端面与替换光纤的端面彼此对准, 并将嵌入式光纤的端面与替换光纤的端面连接在一起。