REMOTE WATER SENSING SYSTEM WITH OPTICAL FIBER
    41.
    发明申请
    REMOTE WATER SENSING SYSTEM WITH OPTICAL FIBER 审中-公开
    具有光纤的远程水感测系统

    公开(公告)号:US20130170786A1

    公开(公告)日:2013-07-04

    申请号:US13683314

    申请日:2012-11-21

    Abstract: A remote water sensing system and method with optical fiber, comprises a water sensor which is an optical element designed in accordance with the principle of optical path return loss and provided with reusable features to measure the state of having water or not. A monitoring equipment is provided which is an Optical Time Domain Reflectometer (OTDR), an Optical Frequency Modulated Continuous Wave (OFMCW), or a light source power meter, and used to emit monitoring light signals and accept optical signals returned from the water sensor. A signal processing control unit analyzes the optical signal returned from the water sensor to determine whether the monitoring position is touching the water or not. The method can be used in other fields, such as optical closure watering monitoring, telecommunications facilities flooding alarm, and monitoring and alarm for a low-lying area or river water level of a bridge.

    Abstract translation: 具有光纤的远程水感测系统和方法包括水传感器,其是根据光路返回损耗原理设计的光学元件,并且具有用于测量具有水的状态的可重复使用特征。 提供了一种监视设备,它是光时域反射计(OTDR),光频调制连续波(OFMCW)或光源功率计,用于发射监测光信号并接收从水传感器返回的光信号。 信号处理控制单元分析从水传感器返回的光信号,以确定监视位置是否接触到水。 该方法可用于其他领域,如光学封闭浇水监测,电信设备洪水报警,以及桥梁低洼地区或河流水位的监测和报警。

    DISTRIBUTED OPTICAL FIBER SENSOR WITH CONTROLLED RESPONSE
    42.
    发明申请
    DISTRIBUTED OPTICAL FIBER SENSOR WITH CONTROLLED RESPONSE 有权
    具有受控响应的分布式光纤传感器

    公开(公告)号:US20070286547A1

    公开(公告)日:2007-12-13

    申请号:US11842906

    申请日:2007-08-21

    Abstract: Distributed fiber optic chemical and physical sensors provide a relatively highly uniform response over the length of the fiber by, for example, varying such properties as the core/cladding index of refraction ratio to compensate for the non-linearity in sensitivity due for example to the loss of higher order modes in multi-mode fibers. The variation of the ratio changes the absorption coefficient of the fiber and can be used to compensate for any non-linearity in response. Other techniques for compensation also are disclosed. In particular, the invention enables compensation for the duration of the spatial transient by varying a parameter relating to the fiber.

    Abstract translation: 分布式光纤化学和物理传感器通过例如改变诸如芯/包层折射率折射率之类的特性来补偿光纤的长度上的非线性,从而在光纤的长度上提供相对高度均匀的响应,以补偿由于例如 多模光纤中高阶模式的损失。 该比率的变化改变了光纤的吸收系数,可用于补偿任何响应的非线性。 还公开了其他补偿技术。 特别地,本发明可以通过改变与光纤相关的参数来补偿空间瞬态的持续时间。

    Distributed optical fiber sensor with controlled response
    43.
    发明申请
    Distributed optical fiber sensor with controlled response 失效
    具有受控响应的分布式光纤传感器

    公开(公告)号:US20060147149A1

    公开(公告)日:2006-07-06

    申请号:US11364237

    申请日:2006-02-28

    Abstract: Distributed fiber optic chemical and physical sensors provide a relatively highly uniform response over the length of the fiber by, for example, varying such properties as the core/cladding index of refraction ratio to compensate for the non-linearity in sensitivity due for example to the loss of higher order modes in multi-mode fibers. The variation of the ratio changes the absorption coefficient of the fiber and can be used to compensate for any non-linearity in response. Other techniques for compensation also are disclosed.

    Abstract translation: 分布式光纤化学和物理传感器通过例如改变诸如芯/包层折射率折射率之类的特性来补偿纤维长度上的相对高度均匀的响应,以补偿由于例如至 多模光纤中高阶模式的损失。 该比率的变化改变了光纤的吸收系数,可用于补偿任何响应的非线性。 还公开了其他补偿技术。

    Device arrays and methods for operation in aggressive solvents and for measurements of barrier properties of plurality of coatings
    44.
    发明申请
    Device arrays and methods for operation in aggressive solvents and for measurements of barrier properties of plurality of coatings 审中-公开
    用于在腐蚀性溶剂中操作并用于测量多个涂层的阻挡性能的装置阵列和方法

    公开(公告)号:US20040150827A1

    公开(公告)日:2004-08-05

    申请号:US10357766

    申请日:2003-02-04

    Abstract: Methods and devices are disclosed for measuring barrier properties of a barrier coating or coating arrays where each barrier coating has a small cross section. To reduce the edge effects in the measurements of barrier properties, measurements are made using a substrate which can be flat, cylindrical or spherical structure coated with a chemically sensitive layer, a solvent resistant layer and an array of barrier coatings. The coated substrate which can be flat, cylindrical or spherical is exposed to a material of interest that has the ability to produce an analyzable variation in the chemically sensitive layer, thereby providing the ability to detect an impact of the material of interest on the barrier coatings. In one variation, an optical radiation interacts with the substrate structure, a resulting initial optical radiation associated with the initial optical radiation and each barrier coating is detected, and any impacts on the coatings by the material of interest are correlated to a value of a barrier property for each of the array of barrier coatings.

    Abstract translation: 公开了用于测量阻挡涂层或涂层阵列的阻挡性能的方法和装置,其中每个阻挡涂层具有小的横截面。 为了减少阻挡性能的测量中的边缘效应,使用可以具有化学敏感层,耐溶剂层和阻挡涂层阵列的平坦,圆柱形或球形结构的衬底进行测量。 可以是平坦的,圆柱形的或球形的涂覆的基底暴露于感兴趣的材料,其具有在化学敏感层中产生可分析的变化的能力,从而提供检测感兴趣的材料对阻挡涂层的影响的能力 。 在一个变型中,光辐射与衬底结构相互作用,检测到与初始光辐射和每个阻挡涂层相关联的所得到的初始光辐射,并且感兴趣材料对涂层的任何影响与屏障的值相关 每个屏障涂层阵列的性能。

    Distributed optical fiber sensor with controlled power loss
    45.
    发明申请
    Distributed optical fiber sensor with controlled power loss 审中-公开
    分布式光纤传感器,具有受控的功率损耗

    公开(公告)号:US20020018629A1

    公开(公告)日:2002-02-14

    申请号:US09730158

    申请日:2000-12-05

    Abstract: Distributed fiber optic chemical and physical sensors provide a relatively highly uniform response over the length of the fiber by, for example, varying such properties as the core/cladding index of refraction ratio to compensate for the non-linearity in sensitivity due to the loss of higher order modes in multi-mode fibers. The variation of the ratio changes the absorption coefficient of the fiber and can be used to compensate for any non-linearity in response. Other techniques for compensation also are disclosed.

    Abstract translation: 分布式光纤化学和物理传感器通过例如改变诸如芯/包层折射率折射率之类的特性来补偿纤维的长度上的相对高度均匀的响应,以补偿灵敏度的非线性,这是由于损失 多模光纤中的高阶模式。 该比率的变化改变了光纤的吸收系数,可用于补偿任何响应的非线性。 还公开了其他补偿技术。

    광섬유 격자센서 장치 및 이를 이용한 안전진단 시스템
    47.
    发明授权
    광섬유 격자센서 장치 및 이를 이용한 안전진단 시스템 有权
    光纤布拉格光栅传感器装置及其安全诊断系统

    公开(公告)号:KR101642692B1

    公开(公告)日:2016-07-27

    申请号:KR1020160072667

    申请日:2016-06-10

    Inventor: 남영신

    Abstract: 본발명은, 코어에브래그격자가형성된광섬유격자센서와, 상기광섬유격자센서가내부에수용되는플렉시블센서보호관과, 상기플렉시블센서보호관의양단부가각각결합되어수용되는결합홈이일측에형성되어있고, 중심부에는상기광섬유격자센서가관통하는제1관통홀이형성된고정부와, 상기고정부와플렉시블센서보호관사이에형성되며, 구조물의변위에따른상기고정부와플렉시블센서보호관사이의마찰력을저감시키는마찰력저감부재와, 상기고정부의타측에배치되며, 중심부에는상기제1관통홀과연통되어상기광섬유격자센서가관통하는제2관통홀이형성된브래킷을포함하여구성되는것을특징으로하는광섬유격자센서장치및 이를이용한안전진단시스템을기술적요지로한다. 이와같이, 광섬유격자센서를보호하기위한플렉시블센서보호관을플렉시블한재질로마련함으로써, 피측정물의설치면형상에무관하게광섬유격자센서장치의설치가가능한이점이있고, 플렉시블센서보호관과플렉시블센서보호관의단부가결합되어수용되는고정부간의마찰력을감소시킴으로써마찰력에의한측정오차를감소시켜피측정물의정확한변형량측정이가능한이점이있고, 광섬유격자센서장치를연속적으로상하로배열함으로써정확한변형량측정이가능한이점이있고, 광섬유격자센서장치에경고음발생장치를구비함으로써야생동물등에의한광섬유격자센서장치의손상및 측정오류를방지할수 있는이점이있으며, 고정부의결합홈을수직다단형태로마련함으로써, 피측정물의표면의형상에구애받지않고광섬유격자센서장치를설치할수 있는이점이있다. 또한, 광섬유격자센서장치를이용하여이격된장소에서원격으로피측정물의거동을파악하여안전관리를할 수있는이점이있다.

    Abstract translation: 本发明包括:光纤光栅传感器; 灵活的传感器保护管; 固定单元; 摩擦力减小构件; 和一个支架。 根据本发明,提供了一种光纤光栅传感器装置和使用其的安全诊断系统。 因此,可以减小柔性传感器保护管与定影单元之间的摩擦力,以减少由摩擦力引起的测量误差,从而精确地测量待测物体的变形。

    광 지장물 검지 장치
    48.
    发明授权

    公开(公告)号:KR101902422B1

    公开(公告)日:2018-10-01

    申请号:KR1020170172934

    申请日:2017-12-15

    Inventor: 윤광희 구자근

    CPC classification number: G01N21/8851 G01N27/72 G01N2201/0886

    Abstract: 본발명은 OTDR을이용하여광펜스에설치된광케이블의단선및 휘어짐을검지하고, 광펜스를촬영하는영상을통해광케이블의단선및 휘어짐이검지된지점을확인하여지장물의여부를판단하는광 지장물검지장치에관한것이다. 본발명의실시예에따른광 지장물검지장치는선로의인근에설치되고, 지장물여부를검출하기위한광케이블이설치된적어도하나이상의광펜스와, 상기광펜스에있는지장물을검지하기위하여상기광케이블의일 단과연결되어상기광케이블로광펄스를입사시키고, 되돌아오는상기광펄스를측정하는지장물검지부와, 상기적어도하나이상의광펜스를향하도록고정되어설치되고, 상기적어도하나이상의광펜스를촬영하는적어도하나이상의검지용카메라와, 상기지장물검지부에서측정한결과및/또는상기적어도하나이상의검지용카메라의촬영영상을보수자가확인하도록표시하는모니터링부를포함한다.

    光纖水感知系統與方法
    49.
    发明专利
    光纖水感知系統與方法 审中-公开
    光纤水感知系统与方法

    公开(公告)号:TW201326782A

    公开(公告)日:2013-07-01

    申请号:TW100149403

    申请日:2011-12-29

    Abstract: 一種光纖水感知系統與方法。組成包括有:(1)水感測器,此水感測器是利用偵測光迴路反射損失原理所設計出來之光學元件;具可重覆使用之特性,用以感測有水或無水的狀態(2)監測設備,此監測設備為光時域反射器(OTDR)、光頻域反射頻譜儀(OFMCW)或者光源及光功率計,用以發送監測光源信號及接收水感測器回傳的光信號(3)信號處理控制單元,用以分析水感測器回傳的光信號,判斷監測點有無觸水狀況。本方法也可應用於光纜接續盒進水監測、電信設施淹水警示、低窪地區、橋梁河川水位監測與告警…等領域。

    Abstract in simplified Chinese: 一种光纤水感知系统与方法。组成包括有:(1)水传感器,此水传感器是利用侦测光回路反射损失原理所设计出来之光学组件;具可重复使用之特性,用以传感有水或无水的状态(2)监测设备,此监测设备为光时域反射器(OTDR)、光频域反射频谱仪(OFMCW)或者光源及光功率计,用以发送监测光源信号及接收水传感器回传的光信号(3)信号处理控制单元,用以分析水传感器回传的光信号,判断监测点有无触水状况。本方法也可应用于光缆接续盒进水监测、电信设施淹水警示、低洼地区、桥梁河川水位监测与告警…等领域。

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