Method and apparatus for multiple localized interferometric measurements

    公开(公告)号:US10295380B2

    公开(公告)日:2019-05-21

    申请号:US15505726

    申请日:2015-08-21

    IPC分类号: G01L1/24 G01D5/353 G01M11/00

    摘要: An optical sensing fiber includes multiple reference reflectors spaced along a length of the fiber. Each of the multiple reference reflectors producing a reference scattering event having a known scattering profile including an elevated amplitude relative to scattering detected for neighboring segments of the optical fiber. Each of the segments is a length of contiguous fiber that is useable to initialize and perform a distributed Optical Frequency Domain Reflectometry (OFDR) sensing operation. An OFDR interrogation system is disclosed that measures a parameter using the optical sensing fiber.

    Medical training kits and methods to simulate treatment of uncontrolled hemorrhage
    22.
    发明授权
    Medical training kits and methods to simulate treatment of uncontrolled hemorrhage 有权
    用于模拟不受控制的出血治疗的医疗训练套件和方法

    公开(公告)号:US09542861B2

    公开(公告)日:2017-01-10

    申请号:US14380276

    申请日:2013-02-22

    摘要: Medical training kits and methods include a simulated liquid blood which simulates mammalian whole blood and a simulated hemostatic component. The simulated liquid blood includes a gellable component, and a simulated hemostatic component includes a gelling agent. The gelling agent causes the gellable component in the simulated liquid blood to form a mass of semi-solid or solid material in response the simulated blood being brought into contact therewith to thereby simulate blood clotting. In certain embodiments, the gellable component is chitosan and/or an alginate compound and the gelling agent is at least one compound which causes the gellable component to desolubulize, polymerize, complex, precipitate, cross-link and the like so as to form a semi-solid or solid mass of chitosan in response to physical contact between the simulated blood and the simulated hemostatic agent.

    摘要翻译: 医疗训练套件和方法包括模拟哺乳动物全血的模拟液体血液和模拟止血组件。 模拟液体血液包括可凝胶组分,并且模拟止血组分包括胶凝剂。 凝胶化剂导致模拟液体血液中的可凝胶组分形成一批半固体或固体材料,以响应模拟血液与其接触,从而模拟血液凝固。 在某些实施方案中,可凝胶组分是壳聚糖和/或藻酸盐化合物,并且胶凝剂是至少一种使可凝胶组分脱粘,聚合,复合,沉淀,交联等的化合物,以形成半 壳聚糖的固体或固体物质响应于模拟血液和模拟止血剂之间的物理接触。

    Sensing systems and methods for determining and classifying corrosivity
    23.
    发明授权
    Sensing systems and methods for determining and classifying corrosivity 有权
    用于确定和分类腐蚀性的感测系统和方法

    公开(公告)号:US09518915B2

    公开(公告)日:2016-12-13

    申请号:US14416392

    申请日:2013-07-15

    摘要: A corrosivity associated with each of multiple locations near, on, or within a structure exposed to an environment that can corrode the structure is determined. Each of multiple sensor nodes is mounted at a corresponding one of the locations and measures environmental sensor information using one or more environmental sensors and corrosion sensor information using one or more corrosion sensors. The environmental sensor information is processed to obtain for the sensing node a first atmospheric corrosivity category value in accordance with a corrosivity classification system, and the corrosion sensor information is processed to obtain a second atmospheric corrosivity category value for the sensing node in accordance with the corrosivity classification system. One or more of the first and second atmospheric corrosivity category values is provided for use in determining a corrosion classification value for each of the locations.

    摘要翻译: 确定与暴露于可能腐蚀结构的环境的结构附近,之上或之内的多个位置中的每一个相关联的腐蚀性。 多个传感器节点中的每一个安装在相应的一个位置处,并使用一个或多个腐蚀传感器使用一个或多个环境传感器和腐蚀传感器信息来测量环境传感器信息。 处理环境传感器信息,以根据腐蚀性分类系统为感测节点获得第一大气腐蚀性类别值,并且根据腐蚀性来处理腐蚀传感器信息以获得感测节点的第二大气腐蚀性类别值 分类系统 提供第一和第二大气腐蚀性类别值中的一个或多个用于确定每个位置的腐蚀分级值。

    FLUID-RESISTANT TEXTILE FABRICS AND METHODS
    25.
    发明申请
    FLUID-RESISTANT TEXTILE FABRICS AND METHODS 有权
    耐流纺织物和方法

    公开(公告)号:US20140220840A1

    公开(公告)日:2014-08-07

    申请号:US14131110

    申请日:2012-06-29

    IPC分类号: D06M15/277 D06M11/79 D06B1/00

    摘要: Coating compositions which include a blend of a fluorochemical and a particulate additive comprising a bimodal size distribution of inorganic nanoparticles are provided. The bimodal distribution of inorganic nanoparticles may include a quantity of smaller nanoparticles having an average size distribution of between about 1 to about 15 nm, and a quantity of larger nanoparticles having an average size distribution of between about 40 to about 500 nm. The smaller and larger nanoparticles may be present in a ratio of the smaller sized particles to the larger sized particles of at least 1.2, with the total amount of nanoparticles being present in an amount of between about 0.1 to about 10 wt. % based on total composition weight.

    摘要翻译: 提供了包含含氟化合物和包含无机纳米颗粒的双峰尺寸分布的颗粒添加剂的共混物的涂料组合物。 无机纳米颗粒的双峰分布可以包括一定量的具有约1至约15nm的平均尺寸分​​布的较小的纳米颗粒和一定数量的具有约40至约500nm的平均尺寸分​​布的较大纳米颗粒。 较小和较大的纳米颗粒可以以较小尺寸的颗粒与至少1.2的较大尺寸的颗粒的比例存在,其中纳米颗粒的总量以约0.1至约10重量%的量存在。 基于总组成重量的%。

    FIBER OPTIC NETWORK INTERROGATION TOOL FOR COMBINED SWEPT-HETERODYNE OPTICAL SPECTRUM ANALYSIS AND OPTICAL FREQUENCY-DOMAIN REFLECTOMETRY
    26.
    发明申请
    FIBER OPTIC NETWORK INTERROGATION TOOL FOR COMBINED SWEPT-HETERODYNE OPTICAL SPECTRUM ANALYSIS AND OPTICAL FREQUENCY-DOMAIN REFLECTOMETRY 有权
    光纤网络互联工具,用于组合切换 - 异质光谱分析和光学频域反射测试

    公开(公告)号:US20140140691A1

    公开(公告)日:2014-05-22

    申请号:US14130086

    申请日:2012-06-20

    IPC分类号: H04B10/071

    摘要: A multi-function optical tool may be used for example for built-in fault detection and transceiver source characterization in local optical communication networks. A single device provides swept-heterodyne optical spectrum analysis (SHOSA) and optical frequency-domain reflectometry (OFDR) in an efficient, low-cost package by utilizing a common interrogation laser source, common optical components, and common, low-bandwidth acquisition hardware. The technology provides significant cost, space, and labor savings for network maintainers and technicians.

    摘要翻译: 可以使用多功能光学工具,例如用于本地光通信网络中的内置故障检测和收发信机源表征。 单个器件通过使用通用询问激光源,普通光学元件和通用的低带宽采集硬件,以高效,低成本的封装提供扫频外差光谱分析(SHOSA)和光频域反射测量(OFDR) 。 该技术为网络维护者和技术人员提供了巨大的成本,空间和劳动力节省。

    In-situ sensors and methods for monitoring environment assisted cracking of structural components
    27.
    发明授权
    In-situ sensors and methods for monitoring environment assisted cracking of structural components 有权
    用于监测结构部件的环境辅助开裂的原位传感器和方法

    公开(公告)号:US08499643B2

    公开(公告)日:2013-08-06

    申请号:US12912465

    申请日:2010-10-26

    IPC分类号: F16B31/02

    CPC分类号: G01M5/0033

    摘要: Sensor assemblies, units and methods are provided to determine crack development of components of interest associated with a monitored structure. According to preferred embodiments, a sample sensor bolt is provided having a shank with a threaded end, the sensor bolt being formed of a material serving as a surrogate of the material forming a component of interest associated with the monitored structure. A frame surrounds the shank of the sensor bolt and has fluid ports therein to allow fluid to contact an exposed portion of the sensor bolt shank in registry therewith. A load cell is operatively connected to the sensor bolt. A preload nut is threaded onto the threaded end of the sensor bolt shank and contacts an end of the frame so as to place the sensor bolt under an initial tensile stress. Crack formation within the sensor bolt shank caused by fluid acting upon the exposed portion thereof responsively relieves the initial tensile stress of the sensor bolt which is thereby sensed by the load cell, whereby crack formation in the shank can be used to sense the propensity for crack development in the component of interest associated with the monitored structure.

    摘要翻译: 提供传感器组件,单元和方法来确定与受监视结构相关的感兴趣组件的裂纹发展。 根据优选实施例,提供了具有带螺纹端的柄的样本传感器螺栓,所述传感器螺栓由用作形成与被监视结构相关联的感兴趣部件的材料的替代物的材料形成。 框架围绕传感器螺栓的柄部并且在其中具有流体端口,以允许流体与传感器螺栓杆的暴露部分接触,以与其对准。 称重传感器可操作地连接到传感器螺栓。 预紧螺母被拧到传感器螺栓柄的螺纹端上并接触框架的一端,以便将传感器螺栓放置在初始拉伸应力下。 传感器螺栓杆内由于作用于暴露部分的流体引起的裂纹形成响应性地减轻传感器螺栓的初始拉伸应力,由传感器螺栓的初始拉伸应力由传感器螺栓感测,由此可以使用柄中的裂纹形成来感测裂纹倾向 与监测结构相关的兴趣部分的发展。

    Registration of an extended reference for parameter measurement in an optical sensing system
    28.
    发明授权
    Registration of an extended reference for parameter measurement in an optical sensing system 有权
    在光学传感系统中注册参数测量的扩展参考

    公开(公告)号:US08400620B2

    公开(公告)日:2013-03-19

    申请号:US13149206

    申请日:2011-05-31

    IPC分类号: G01L1/24 G01B11/16 G01B9/02

    摘要: An interferometric measurement system measures a parameter using at least one optical waveguide. A memory stores reference interferometric pattern data associated with a segment of the optical waveguide. Interferometric detection circuitry detects and stores measurement interferometric pattern data associated with the segment of the optical waveguide during a measurement operation. A spectral range of the reference interferometric pattern of the optical waveguide is greater than a spectral range of the measurement interferometric pattern of the optical waveguide. A processor shifts one or both of the measurement interferometric pattern data and the reference interferometric pattern data relative to the other to obtain a match and to use the match to measure the parameter. An example parameter is strain.

    摘要翻译: 干涉测量系统使用至少一个光波导测量参数。 存储器存储与光波导的段相关联的参考干涉图案数据。 干涉测量电路在测量操作期间检测和存储与光波导段相关联的测量干涉图案数据。 光波导的参考干涉图案的光谱范围大于光波导的测量干涉图案的光谱范围。 处理器相对于另一个处理器移动测量干涉图案数据和参考干涉图案数据中的一个或两个以获得匹配并且使用该匹配来测量该参数。 示例参数是应变。