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公开(公告)号：US06341185B1
公开(公告)日：2002-01-22
申请号：US09383722
申请日：1999-08-26
IPC分类号： B02B600
CPC分类号： G01D5/268
摘要： An extrinsic optical waveguide sensor for making refractive index measurements of an in situ sample is provided. The sensor comprises a holder having at least one sample input region and at least one interferometric region. At least one optical fiber is positioned in the holder, each optical fiber having an endface serving as an input and an output. At least one reflector, each reflector is positioned in the holder in an operable relationship to each optical fiber endface, thus defining each interferometric region.
摘要翻译： 提供了用于进行原位样品的折射率测量的外在光波导传感器。 传感器包括具有至少一个采样输入区域和至少一个干涉区域的保持器。 至少一个光纤被定位在保持器中，每个光纤的端面用作输入端和输出端。 至少一个反射器，每个反射器以与每个光纤端面可操作的关系定位在保持器中，从而限定每个干涉区域。
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公开(公告)号：US06987897B2
公开(公告)日：2006-01-17
申请号：US10695236
申请日：2003-10-28
IPC分类号： G02B6/00
CPC分类号： G01N21/05 , G01N2015/0693
摘要： The present invention is for a fiber optic flow cell. The flow cell comprises a substrate having at least one sample channel and at least one optical fiber channel holder. At least one optical fiber is disposed within each optical fiber channel holder. Each optical fiber has at least one grating wherein each grating is in contact with each sample channel, defining a sensing area. At least one sample port is positioned in an operable relationship to at least one sample channel. Alternatively, at least one sample outlet is positioned in an operable relationship to at least one sample channel. The flow cell may be of a modular design providing a flow cell kit that contains pieces that may be assembled to form custom-made flow cells. The flow cell is used for conducting measurement studies on a sample.
摘要翻译： 本发明用于光纤流动池。 流动池包括具有至少一个样品通道的衬底和至少一个光纤通道保持器。 在每个光纤通道保持器内设置至少一根光纤。 每个光纤具有至少一个光栅，其中每个光栅与每个采样通道接触，限定感测区域。 至少一个采样端口被定位成与至少一个采样通道可操作的关系。 或者，至少一个样品出口被定位成与至少一个样品通道可操作的关系。 流动池可以是模块化设计，提供流动池套件，其包含可以组装以形成定制的流动池的块。 流动池用于对样品进行测量研究。
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3.发明授权Fiber-optic apparatus and method for making simultaneous multiple parameter measurements 有权用于同时进行多参数测量的光纤设备和方法公开(公告)号：US06898337B2
公开(公告)日：2005-05-24
申请号：US10805081
申请日：2004-03-19
申请人： Joshua P. Averett , Jennifer L. Elster , Mark E. Jones , Charles D. Pennington , Roger L. Van Tassell
发明人： Joshua P. Averett , Jennifer L. Elster , Mark E. Jones , Charles D. Pennington , Roger L. Van Tassell
IPC分类号： G01D5/353 , G01N33/487 , G01N33/543 , G02B6/26 , G02B6/34
CPC分类号： G01D5/35383 , G01D5/35303 , G01N33/54373
摘要： A fiber-optic method for making simultaneous multiple parameter measurements employs an optical fiber sensor having at least one long period grating disposed therein. An excitation is created in the optical fiber sensor wherein a plurality of evanescent field sensing depths result. At least two long period grating signatures are created. When the optical fiber sensor is exposed to at least one material, changes in the material are identified by simultaneously measuring and comparing shifts in each long period grating signature; correlating the shifts to changes in the material; and solving a series of equations that compare changes in the coupling wavelength for a specific loss band. A reactive coating may be applied to the optical fiber sensor proximate to the long period grating such that changes in the reactive coating as it reacts with the material may also be monitored.
摘要翻译： 用于进行同时多参数测量的光纤方法使用具有设置在其中的至少一个长周期光栅的光纤传感器。 在光纤传感器中产生激发，其中产生多个消逝场感测深度。 创建至少两个长周期光栅签名。 当光纤传感器暴露于至少一种材料时，通过同时测量和比较每个长周期光栅标记中的位移来识别材料的变化; 将转移与材料变化相关联; 并求解一系列方程，比较特定损耗带的耦合波长变化。 可以将反应性涂层施加到靠近长周期光栅的光纤传感器，使得当反应性涂层与材料反应时的变化也可以被监测。
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公开(公告)号：US06275628B1
公开(公告)日：2001-08-14
申请号：US09440499
申请日：1999-11-15
IPC分类号： G02B626
CPC分类号： G02B6/02057 , G02B6/14 , G02B6/29317
摘要： A single-ended long period grating optical device is presented. The single-ended optical device comprises an optical waveguide having at least one core mode and a plurality of cladding modes. At least one long period grating couples light from the core mode to the cladding modes. A reflector is positioned in an operable relationship to the long period grating, and the reflector reflects a signal. A mode stripper is positioned after the long period grating and removes the cladding modes from a transmitted signal and the reflected signal.
摘要翻译： 提出了一种单端长周期光栅光学器件。 单端光学器件包括具有至少一个核心模式和多个包层模式的光波导。 至少一个长周期光栅将光从核心模式耦合到包层模式。 反射器被定位成与长周期光栅可操作的关系，并且反射器反射信号。 模式剥离器位于长周期光栅之后，并从发射信号和反射信号中去除包层模式。
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公开(公告)号：US06965708B2
公开(公告)日：2005-11-15
申请号：US10264507
申请日：2002-10-04
申请人： Shufang Luo , Jennifer L. Elster , Yongcheng Liu , Artur Sucheta
发明人： Shufang Luo , Jennifer L. Elster , Yongcheng Liu , Artur Sucheta
CPC分类号： G01N21/774 , G01N21/81 , G01N2021/7723 , G02B6/02095
摘要： Various exemplary embodiments, devices, systems, and methods for sensing moisture are disclosed, including at least one moisture sensor that comprises an optical fiber, a long period grating formed in at least a portion of the optical fiber, and a layer of PEI bonded to the long period grating. One exemplary embodiment comprises a system for measuring humidity, the system comprising an optical fiber moisture sensor having a mono-layer of PEI covalently-bonded to an outer surface of said optical fiber, a processor coupled to said optical fiber moisture sensor, and a moisture indicator coupled to said processor.
摘要翻译： 公开了用于感测水分的各种示例性实施例，装置，系统和方法，包括至少一个湿度传感器，其包括光纤，形成在光纤的至少一部分中的长周期光栅，以及结合到 长周期光栅。 一个示例性实施例包括用于测量湿度的系统，该系统包括光纤水分传感器，该光纤水分传感器具有共价键合到所述光纤的外表面上的PEI单层，耦合到所述光纤水分传感器的处理器和湿气 指示器耦合到所述处理器。
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