公开(公告)号：US20150308952A1

公开(公告)日：2015-10-29

申请号：US14693279

申请日：2015-04-22

Applicant: LITTELFUSE, INC.

Inventor： Brian Johnson

IPC: G01N21/59

CPC classification number: G01N21/59 ,  B60K13/04 ,  B60K2015/0321 ,  F01N3/2066 ,  F01N11/00 ,  F01N2610/148 ,  F01N2900/1818 ,  G01N21/552 ,  G01N21/8507 ,  G01N2021/8542 ,  G01N2201/088 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: A sensor to measure a liquid. The sensor may include a light source operably coupled to a lumen disposed in a liquid solution, the light source configured to emit light and communicate the light to the lumen; a light detector operably coupled to the lumen, the light detector configured to receive at least a portion of the light from the lumen; and a controller configured to determine a concentration or quality of the liquid solution based on the light emitted by the light source and the portion of light received by the light detector.

Abstract translation: 用于测量液体的传感器。 传感器可以包括可操作地耦合到设置在液体溶液中的内腔的光源，所述光源被配置为发光并将光连通到内腔; 可操作地耦合到所述内腔的光检测器，所述光检测器被配置为接收来自所述内腔的光的至少一部分; 以及控制器，被配置为基于由光源发射的光和由光检测器接收的光的部分来确定液体溶液的浓度或质量。

公开(公告)号：US20150233885A1

公开(公告)日：2015-08-20

申请号：US14180530

申请日：2014-02-14

Applicant: David Glynn Thomas ,  Christopher John Kalli

Inventor： David Glynn Thomas ,  Christopher John Kalli

IPC: G01N33/18 ,  G01N33/28 ,  G01N21/77

CPC classification number: G01N33/1886 ,  G01N21/7703 ,  G01N33/1833 ,  G01N33/2847 ,  G01N2021/7709 ,  G01N2021/7716 ,  G01N2021/7723 ,  G01N2021/7736 ,  G01N2021/7783 ,  G01N2021/7786 ,  G01N2201/088 ,  Y10T436/218

Abstract: The present invention relates to a sorption-based sensing system for sensing multiple selected species in a fluid. In one aspect, the sensing system comprises an optical conduit for guiding light from an input end to an output end, a detector for detecting at least one feature of the light at the output end associated with the optical characteristic, and an analyzer for determining at least one attribute of at least one of the multiple selected species in the fluid based on the detected feature. The optical conduit includes a sorptive portion having a set of different sorption properties associated with the multiple selected species. The sorptive portion is adapted to be positioned in the fluid to reversibly sorb at least one of the multiple selected species to vary an optical characteristic of the sorptive portion. In another aspect, there is provided a corresponding method for operating the sensing system.

Abstract translation: 本发明涉及一种用于感测流体中多个选定物种的基于吸附的感测系统。 一方面，感测系统包括用于将光从输入端引导到输出端的光导管，用于检测与光学特性相关联的输出端处的光的至少一个特征的检测器，以及用于确定 基于检测到的特征，流体中多个选定物种中的至少一个物种的至少一个属性。 光导管包括具有与多个选定物种相关联的一组不同吸附特性的吸附部分。 吸收部分适于定位在流体中以可逆地吸收多个选定物种中的至少一个，以改变吸附部分的光学特性。 在另一方面，提供了用于操作感测系统的相应方法。

公开(公告)号：US09110018B2

公开(公告)日：2015-08-18

申请号：US13992578

申请日：2011-12-06

Applicant: Vincent Handerek

Inventor： Vincent Handerek

IPC: G01N21/47 ,  E21B47/06 ,  E21B47/12 ,  G01D5/353

CPC classification number: G01N21/474 ,  E21B47/06 ,  E21B47/123 ,  G01D5/35361 ,  G01D5/35383 ,  G01D5/35387 ,  G01N2201/06113 ,  G01N2201/088

Abstract: There is disclosed a distributed optical fiber sensor arranged to deliver probe light pulses of different wavelengths into corresponding different sensing optical fibers, and to determine one or more parameters as functions of position along each of the sensing fibers from detected backscattered light of each corresponding wavelength. In another arrangement, the different wavelengths are directed in different corresponding directions around a loop of sensing optical fiber.

Abstract translation: 公开了一种布置成将不同波长的探测光脉冲传送到相应的不同感测光纤中的分布式光纤传感器，并且从每个相应波长的检测到的反向散射光中确定一个或多个参数作为沿每个感测光纤的位置的函数。 在另一种布置中，不同的波长围绕传感光纤的环路在不同的相应方向上被引导。

公开(公告)号：US20150153282A1

公开(公告)日：2015-06-04

申请号：US14619166

申请日：2015-02-11

Applicant: MOCON, INC.

Inventor： John Eastman

IPC: G01N21/64

CPC classification number: G01N21/278 ,  G01N21/643 ,  G01N21/6486 ,  G01N21/77 ,  G01N2021/6432 ,  G01N2201/088

Abstract: A calibration tool and method of using the tool to calibrate a fiber optic needle oxygen sensor. The tool includes at least a vial sealingly covered by a septa and containing a supply of particulate oxygen getter within the chamber of the vial. The vial has an open top and is constructed from an oxygen impermeable material. The septa is resealing, needle-penetrable and oxygen impermeable. The supply of particulate oxygen getter is retained within an oxygen permeable sachet.

Abstract translation: 一种校准工具和使用该工具校准光纤针氧传感器的方法。 该工具包括至少一个密封地被隔垫覆盖并且在小瓶的腔室内容纳有颗粒氧吸气剂的小瓶。 小瓶具有开口顶部，并且由不透氧材料构成。 隔垫正在重新密封，针穿透和不透氧。 颗粒氧吸气剂的供应保留在透氧小袋内。

公开(公告)号：US20140333933A1

公开(公告)日：2014-11-13

申请号：US14368499

申请日：2013-01-10

Applicant: The Regents of the University of California

Inventor： Jay James ,  Donald Lucas ,  Jeffrey Scott Crosby ,  Catherine P. Koshland

IPC: G01N21/55 ,  G01J3/42

CPC classification number: G01N21/554 ,  G01J3/42 ,  G01J2003/425 ,  G01N33/0045 ,  G01N2201/088

Abstract: A mercury detection system that includes a flow cell having a mercury sensor, a light source and a light detector is provided. The mercury sensor includes a transparent substrate and a submonolayer of mercury absorbing nanoparticles, e.g., gold nanoparticles, on a surface of the substrate. Methods of determining whether mercury is present in a sample using the mercury sensors are also provided. The subject mercury detection systems and methods find use in a variety of different applications, including mercury detecting applications.

Abstract translation: 提供一种汞检测系统，其包括具有汞传感器，光源和光检测器的流通池。 汞传感器包括透明衬底和在衬底的表面上的汞吸收纳米颗粒例如金纳米颗粒的亚单层。 还提供了使用汞传感器确定汞是否存在于样品中的方法。 主题汞检测系统和方法可用于各种不同的应用，包括汞检测应用。

公开(公告)号：US20130248697A1

公开(公告)日：2013-09-26

申请号：US13892274

申请日：2013-05-11

Applicant: Claudio Oliveira Egalon

Inventor： Claudio Oliveira Egalon

IPC: G01N21/17 ,  G02B6/00

CPC classification number: G01N21/251 ,  G01D5/353 ,  G01D5/35345 ,  G01D5/35387 ,  G01F23/2927 ,  G01N21/17 ,  G01N21/64 ,  G01N21/645 ,  G01N21/648 ,  G01N21/76 ,  G01N21/7703 ,  G01N2021/635 ,  G01N2021/6484 ,  G01N2021/7736 ,  G01N2201/06193 ,  G01N2201/062 ,  G01N2201/088 ,  G02B6/00

Abstract: A side illuminated multi point multi parameter optical fiber sensor that requires no sensitive coating is provided. This sensor comprises an optical fiber having at least one removed cladding section as the sensitive region, at least one probing light source that side illuminates the fiber, a power supply, a detector, a signal processor and a display. The sensitive optical fiber is optically affected by the presence of a measurand medium that can fluoresce, phosphoresce, absorb and/or scatter the probing light. This probing light is guided by the fiber core towards a detector which measures the light intensity and this light intensity is correlated with a measurand.

Abstract translation: 提供不需要敏感涂层的侧面照明多点多参数光纤传感器。 该传感器包括具有至少一个去除的包层部分作为敏感区域的光纤，该侧面照射光纤的至少一个探测光源，电源，检测器，信号处理器和显示器。 敏感光纤受到可以荧光，磷光吸收，吸收和/或散射探测光的被测量介质的存在的光学影响。 该探测光由光纤芯引向测量光强度的检测器，该光强度与被测量相关。

公开(公告)号：US20130208283A1

公开(公告)日：2013-08-15

申请号：US13879370

申请日：2011-09-21

Applicant: Edward Tapanes

Inventor： Edward Tapanes

IPC: G01B9/02 ,  G02B6/255 ,  G02B6/36

CPC classification number: G01B9/02041 ,  G01B9/02 ,  G01B9/02012 ,  G01B9/02027 ,  G01B9/02049 ,  G01B9/02079 ,  G01B2290/70 ,  G01D5/35306 ,  G01D5/35325 ,  G01D5/35329 ,  G01N21/8806 ,  G01N2201/0612 ,  G01N2201/088 ,  G02B6/255 ,  G02B6/36 ,  G08B13/124 ,  G08B13/186 ,  Y10T29/49826

Abstract: Variable Sensitivity optical sensors can have a respective actual sensitivity of one or more portions of the sensor corresponding, at least in part, to a selected environment of each respective sensor portion. Some disclosed sensors have a plurality of optical conduits extending longitudinally of the sensors. At least one of the optical conduits can have at least one longitudinally extending segment having one or more optical and/or mechanical properties that differs from the optical properties of an adjacent longitudinally extending segment, providing the conduit with longitudinally varying signal propagation characteristics. An optical sensor having such optical conduits can exhibit a longitudinally varying actual sensitivity. Nonetheless, such a sensor can exhibit a substantially constant apparent sensitivity, e.g., when each respective portion of the sensor exhibits an actual sensitivity corresponding to a selected environment. Innovative sensors can provide a low-incidence of false or nuisance alarms, accurate position and magnitude information, and other advantages.

Abstract translation: 可变灵敏度光学传感器可以具有至少部分地对应于每个相应传感器部分的选定环境的传感器的一个或多个部分的相应实际灵敏度。 一些公开的传感器具有沿传感器纵向延伸的多个光导管。 光导管中的至少一个可以具有至少一个具有一个或多个光学和/或机械特性的纵向延伸段，其不同于相邻的纵向延伸段的光学性质，为导管提供纵向变化的信号传播特性。 具有这种光导管的光学传感器可以呈现纵向变化的实际灵敏度。 尽管如此，这种传感器可以表现出基本上恒定的视觉灵敏度，例如当传感器的每个相应部分表现出对应于选定环境的实际灵敏度时。 创新的传感器可以提供低发生率的错误或烦扰报警，准确的位置和幅度信息等优点。

公开(公告)号：US20110110621A1

公开(公告)日：2011-05-12

申请号：US12615642

申请日：2009-11-10

Applicant: Roger G. Duncan ,  Brooks A. Childers ,  Robert M. Harman

Inventor： Roger G. Duncan ,  Brooks A. Childers ,  Robert M. Harman

IPC: G01N21/84 ,  G01N21/00 ,  G02B6/00

CPC classification number: G01L1/246 ,  E21B47/06 ,  E21B47/123 ,  G01D5/35303 ,  G01K11/3206 ,  G01N2201/088 ,  G01V1/226

Abstract: An apparatus for estimating a parameter at distributed locations, the apparatus including: an optical fiber having: a first series of fiber Bragg gratings (FBGs) and configured to measure the parameter at a portion of the distributed locations; a second series of FBGs and configured to measure the parameter at another portion of the distributed locations; and an optical interrogator configured to illuminate the optical fiber and to receive light signals resulting from the illumination, the light signals including first light signals from the first series of FBGs within a first range of wavelengths, second light signals from the second series of FBGs within a second range of wavelengths, and other light signals within a third range of wavelengths, the ranges of wavelengths being distinct from each other; wherein the first light signals and the second light signals are used to estimate the parameter at the distributed locations.

Abstract translation: 一种用于估计分布位置处的参数的装置，所述装置包括：光纤，其具有：第一系列光纤布拉格光栅（FBG），并且被配置为在所述分布位置的一部分处测量所述参数; 第二系列FBG并且被配置为在分布位置的另一部分处测量参数; 以及光学询问器，被配置为照亮所述光纤并且接收由所述照明产生的光信号，所述光信号包括来自所述第一波长范围内的所述第一系列FBG的第一光信号，来自所述第二系列FBG内的第二光信号 第二波长范围以及在第三波长范围内的其它光信号，波长范围彼此不同; 其中第一光信号和第二光信号用于估计分布位置处的参数。

公开(公告)号：US20100241362A1

公开(公告)日：2010-09-23

申请号：US12728738

申请日：2010-03-22

Applicant: Koji Yoshikawa ,  Hisashi Kino ,  Naoaki Matsubara

Inventor： Koji Yoshikawa ,  Hisashi Kino ,  Naoaki Matsubara

IPC: G01N31/00 ,  G01N21/00

CPC classification number: G01N21/553 ,  G01N21/4133 ,  G01N21/7703 ,  G01N33/2852 ,  G01N2201/088

Abstract: A fuel property determining apparatus may comprise a first sensor and second sensor. The first sensor may detect a concentration of an alcohol contained in fuel. The second sensor may detect a vapor pressure of the target fuel. The fuel property determining apparatus may further comprise a memory and a processor. The memory may store first data for determining a “heavy/light gravity—vapor pressure” relationship based on the concentration of the alcohol. The processor may determine the fuel property of the target fuel based on the first data stored in the memory, the alcohol concentration detected by the first sensor, and the vapor pressure detected by the second sensor.

Abstract translation: 燃料特性确定装置可以包括第一传感器和第二传感器。 第一传感器可以检测燃料中所含的醇的浓度。 第二传感器可以检测目标燃料的蒸气压。 燃料属性确定装置还可以包括存储器和处理器。 存储器可以存储用于基于酒精的浓度确定“重/轻重力 - 蒸气压”关系的第一数据。 处理器可以基于存储在存储器中的第一数据，由第一传感器检测到的酒精浓度和由第二传感器检测的蒸气压来确定目标燃料的燃料特性。

公开(公告)号：US07336859B2

公开(公告)日：2008-02-26

申请号：US11321158

申请日：2005-12-28

Applicant: Glen A. Sanders

Inventor： Glen A. Sanders

IPC: G02B6/00 ,  G02B6/02

CPC classification number: G01N21/552 ,  G01N21/7703 ,  G01N21/7746 ,  G01N21/94 ,  G01N2021/7783 ,  G01N2201/0873 ,  G01N2201/088 ,  G02B6/107

Abstract: Methods and apparatus are provided for detecting one or more contaminant particles in an environment with an optical sensor. The sensor includes at least one optical waveguide in a resonant arrangement and a light source positioned in an environment in which the presence of a contaminant particle is sought to be determined. The at least one optical waveguide is of a diameter that an evanescent tail of the lightwave extending there through extends into the environment and is reactive to at least one contaminant particle in the surrounding environment. A detector is positioned to receive light indicative of the sharpness of the optical resonance lineshape of the optical resonator at a pre-selected optical wavelength. The detected information determines the specific contaminant particle in the environment and the concentration of the contaminant particle in the environment.

Abstract translation: 提供了用于利用光学传感器检测环境中的一种或多种污染物颗粒的方法和装置。 传感器包括至少一个谐振装置中的光波导和位于其中寻求确定污染物颗粒的存在的环境中的光源。 至少一个光波导具有直径延伸到其中的光波的渐逝尾部延伸到环境中并且对周围环境中的至少一种污染物质具有反应性的直径。 检测器被定位成以预选的光波长接收指示光学谐振器的光学谐振线形状的清晰度的光。 检测到的信息确定环境中的特定污染物颗粒和环境中污染物颗粒的浓度。