公开(公告)号：US5206701A

公开(公告)日：1993-04-27

申请号：US764146

申请日：1991-09-20

Applicant: James L. Taylor ,  Ronald L. Cutshall ,  Ernest H. Baughman

Inventor： James L. Taylor ,  Ronald L. Cutshall ,  Ernest H. Baughman

IPC: G01J3/08 ,  G01N21/25 ,  G01N21/27

CPC classification number: G01J3/08 ,  G01N21/255 ,  G01N2021/1751 ,  G01N21/276 ,  G01N21/359 ,  G01N2201/084

Abstract: An apparatus is provided for obtaining spectral information and quantifying the physical properties of a sample. The apparatus comprises a light source and a high-efficiency fiber optic switch means communicating with the light source for directing the light alternatively along at least two channels, the two channels comprising at least one reference channel and at least one sample channel. A sample means communicates with the sample channel for providing an interface between the light and the sample. A fiber optic means comprising a high-efficiency fiber optic switch and/or an optical coupler communicates with the sample channels and the reference channels and directs the light alternatively from the reference and sample channels to a mode scrambler. A wavelength discrimination device separates the light from the mode scrambler into component wavelengths and provides spectral information for the determination of the physical properties of the sample. The apparatus of the present invention provides superior chemometric prediction accuracy, is reliable, durable, and stable over time, and provides outstanding performance in a manufacturing or field environment.

Abstract translation: 提供了一种用于获得光谱信息并量化样品的物理性质的装置。 该装置包括光源和与光源通信的高效光纤开关装置，用于沿至少两个通道交替引导光，该两个通道包括至少一个参考通道和至少一个采样通道。 样品装置与样品通道通信，以提供光和样品之间的界面。 包括高效光纤开关和/或光耦合器的光纤装置与采样通道和参考通道通信，并将光从参考和采样通道交替引导到模式扰频器。 波长识别装置将来自模式扰频器的光分离成分量波长，并提供用于确定样品的物理性质的光谱信息。 本发明的装置提供优异的化学计量预测精度，可靠，耐用，且随时间稳定，并且在制造或现场环境中提供优异的性能。

公开(公告)号：US5112127A

公开(公告)日：1992-05-12

申请号：US442235

申请日：1989-11-28

Applicant: Michael M. Carrabba ,  R. David Rauh

Inventor： Michael M. Carrabba ,  R. David Rauh

IPC: G01J3/44 ,  G01N21/65

CPC classification number: G01N21/65 ,  G01J3/44 ,  G01N21/658 ,  G01N2201/084

Abstract: A fiber-optic probe which is useful for measuring Raman spectra of samples remote from the light source and detector. The probe head contains optical components which selectively remove unwanted fluorescence and Raman scattering arising from the interaction between the Raman excitation source radiation and the input optical fiber. The optics also filter the Raman excitation source into a return optical fiber leading to a spectrometer or detector. In one embodiment, the disposition of optical components provides a compact probe geometry with parallel input and output fibers at one end and a sampling port at the other end. An encasement for the optics is also disclosed, for sealing the components against the environment, and for coupling the probe to specialized sampling attachments, such as for conducting Surface Enhanced Raman Spectroscopy.

Abstract translation: 一种光纤探头，可用于测量远离光源和检测器的样品的拉曼光谱。 探头包含选择性地去除由拉曼激发源辐射和输入光纤之间的相互作用产生的不需要的荧光和拉曼散射的光学部件。 光学器件还将拉曼激发源滤波成通向光谱仪或检测器的返回光纤。 在一个实施例中，光学部件的配置提供了在一端具有并行输入和输出光纤以及在另一端的采样端口的紧凑的探针几何形状。 还公开了用于光学器件的封装，用于将部件与环境密封，以及将探针耦合到专门的采样附件，例如用于进行表面增强拉曼光谱。

公开(公告)号：US5084614A

公开(公告)日：1992-01-28

申请号：US586239

申请日：1990-09-21

Applicant: Lawrence S. Berkner

Inventor： Lawrence S. Berkner

IPC: G01N15/00 ,  G01N15/02 ,  G01N15/14 ,  G01N21/85

CPC classification number: G01N15/1456 ,  G01N15/1436 ,  G01N2015/0046 ,  G01N2015/0238 ,  G01N21/8507 ,  G01N2201/084

Abstract: An instrument for detecting single airborne particles, and measuring their concentration, includes a transmitting optical fiber optically connected to a light source at one end, and a collecting optical fiber connected to a photodiode at one of its ends. The respective opposite ends of the optical fibers are potted into a rigid probe head with their exposed ends polished smooth and flat, facing each other and separated by an air gap of about one-tenth of an inch. At least some of the light from the source crosses the gap between the optical fibers and reaches the detector, such portion of the light defining a particle sensing volume. Particles passing through this volume are detected by optical extinction as they reduce the amount of light reaching the detector. The device has simple optics, requiring no lenses or mirrors. The transmitting and collecting fibers, and the air gap, form a well defined and repeatable sensing volume so that individual devie calibration is not required. The probe is small and rugged, allowing it to be inserted directly in a fluid flow for in-situ measurements even in hostile environments. Associated signal processing electronics account for fluid stream velocity, so that the device measures true aerosol concentration in a fluid stream, regardless of changes in the stream velocity. The particle size threshold in the electronics is a percentage of the light to the detector which allows to remain in calibration when the amount of light through the probe changes.

Abstract translation: 用于检测单个空气中的颗粒并测量它们的浓度的仪器包括在一端光连接到光源的发射光纤和在其一端连接到光电二极管的聚光光纤。 将光纤的相应两端封装成刚性探针头，其暴露的端部抛光光滑且平坦，彼此面对并分开约十分之一英寸的气隙。 来自源的至少一些光穿过光纤之间的间隙并到达检测器，这样的部分光限定了颗粒感测体积。 通过该体积的颗粒通过光学消光来检测，因为它们减少了到达检测器的光量。 该设备具有简单的光学元件，不需要镜头或镜子。 传输和收集光纤以及气隙形成了良好定义和可重复的传感量，从而不需要进行单独的测距。 探头小巧坚固，允许将其直接插入流体流中，即使在恶劣环境中进行现场测量。 相关的信号处理电子学解释流体流速度，使得该装置测量流体流中的真实气溶胶浓度，而不管流速度的变化。 电子元件中的粒子尺寸阈值是对检测器的光的百分比，当通过探针的光量变化时，允许保持校准。

公开(公告)号：US5039491A

公开(公告)日：1991-08-13

申请号：US303444

申请日：1989-01-27

Applicant: Elric W. Saaski ,  David A. McCrae ,  Dale M. Lawrence

Inventor： Elric W. Saaski ,  David A. McCrae ,  Dale M. Lawrence

IPC: G01N21/03 ,  G01N21/31 ,  G01N21/77 ,  G01N21/78 ,  G01N21/80

CPC classification number: G01N21/77 ,  G01N21/783 ,  G01N2021/0314 ,  G01N2021/0385 ,  G01N2021/3144 ,  G01N21/80 ,  G01N2201/0231 ,  G01N2201/062 ,  G01N2201/0621 ,  G01N2201/084 ,  Y10T436/207497 ,  Y10T436/209163

Abstract: An oxygen sensor contains an indicator whose change in absorption is a function of the concentration of oxygen in a sample bathing the indicator. Light transmitted and reflected through the indicator of the sensor undergoes an absorption that is characteristic of the concentration of oxygen. The indicator is a viologen whose absorption returns to a steady-state value after it has been subjected to a pulse of short-wavelength light. The rate at which the absorption returns to the steady-state value is a function of the concentration of oxygen bathing the viologen indicator. A measurement system for use with the pO.sub.2 sensor causes a short-wavelength flash to be sent to the sensor and thereafter monitors the time-varying absorption of the sensor to measure the oxygen content of the sample bathing the viologen indicator.

Abstract translation: 氧传感器包含指示器，其指示器的吸收变化是洗涤指示剂的样品中的氧浓度的函数。 通过传感器的指示器透射和反射的光经受氧浓度特征的吸收。 指示器是经过短波长光脉冲后其吸收回到稳态值的紫精。 吸收回到稳定状态值的速率是沐浴viologen指示剂的氧气浓度的函数。 与pO2传感器一起使用的测量系统使得将短波长闪光发送到传感器，然后监测传感器的随时间变化的吸收，以测量洗涤紫罗兰指示剂的样品的氧含量。

公开(公告)号：US5038040A

公开(公告)日：1991-08-06

申请号：US411055

申请日：1989-09-22

Applicant: Robert C. Funk ,  Kenneth A. Sudduth ,  John W. Hummel

Inventor： Robert C. Funk ,  Kenneth A. Sudduth ,  John W. Hummel

IPC: G01J3/12 ,  G01J3/28 ,  G01N21/35 ,  G01N33/24

CPC classification number: G01N21/3563 ,  G01N33/24 ,  G01J2003/1234 ,  G01J2003/2866 ,  G01N21/359 ,  G01N21/474 ,  G01N2201/0216 ,  G01N2201/084

Abstract: A soil test apparatus for field use comprises structure adapting the apparatus for transport over a field for testing the soil thereof; an infrared radiation generator for producing infrared radiation at a plurality of predetermined wavelengths, an elongate light carrying member coupled to the infrared radiation generator and extending therefrom for directing infrared radiation onto the soil; and a light detector for detecting infrared radiation reflected from the soil and for producing corresponding electrical signals.

Abstract translation: 用于现场使用的土壤测试装置包括使装置在田地上运输的结构，用于测试其土壤; 用于产生多个预定波长的红外辐射的红外辐射发生器，耦合到所述红外辐射发生器并从其延伸的细长的光承载构件，用于将红外辐射引导到土壤上; 以及光检测器，用于检测从土壤反射的红外辐射并产生相应的电信号。

公开(公告)号：US4941747A

公开(公告)日：1990-07-17

申请号：US308521

申请日：1989-02-10

Applicant: John P. Dakin

Inventor： John P. Dakin

IPC: G01J3/26 ,  G01N21/31 ,  G01N21/39

CPC classification number: G01N21/39 ,  G01N21/31 ,  G01J3/26 ,  G01N2201/0621 ,  G01N2201/0826 ,  G01N2201/084

Abstract: An optical scanning arrangement for gas sensing, in which scanned light source means produces a spectrum of regularly spaced wavelengths or lines which correspond as regards spacing to the absorption line spectrum of a gas to be monitored and in which the multi-line output from the light source means propagates through a region to be sensed for gas and means for determining the light output from the region for detecting the attenuation of the components of the multi-line output from the light source means due to absorption by said gas being monitored.

Abstract translation: 用于气体感测的光学扫描装置，其中扫描光源装置产生规则间隔的波长或线的光谱，其对应于待监测气体的吸收线谱的间隔，并且其中来自光的多线输出 源装置传播通过待检测的气体区域，以及用于确定来自该区域的光的输出的装置，用于检测由于所监视的气体的吸收而导致的来自光源装置的多线输出的分量的衰减。

公开(公告)号：US4907883A

公开(公告)日：1990-03-13

申请号：US195922

申请日：1988-05-19

Applicant: William E. Allmon ,  John W. Berthold

Inventor： William E. Allmon ,  John W. Berthold

IPC: F22B37/00 ,  G01N21/09 ,  G01N21/25 ,  G01N21/39 ,  G01N21/63 ,  G21C17/017

CPC classification number: G21C17/017 ,  F22B37/002 ,  G01N21/255 ,  G01N2021/4709 ,  G01N21/09 ,  G01N21/39 ,  G01N21/63 ,  G01N2201/084

Abstract: An apparatus and method for conducting optical spectroscopy in a hostile environment comprises a light source, e.g., a laser or an incandescent light connected to a multiplexer for supplying high intensity light to at least two optical fibers. One of the optical fibers extends to a material in the hostile environment to be analyzed. The second optical fiber is connected between the multiplexer and a standard sample for yielding known spectroscopic results. Either the same or additional optical fibers are used to return light from the material to be analyzed. Each optical fiber has an end portion covered by a sheath to shield the optical fiber from the hostile environment. The sheath has an open end covered by a transparent window which is preferably made of diamond, again, to seal and protect the optical fiber in the sheath.

Abstract translation: 用于在恶劣环境中进行光谱的装置和方法包括光源，例如连接到多路复用器的激光器或白炽灯，用于向至少两根光纤提供高强度光。 其中一根光纤延伸到待分析的恶劣环境中的材料。 第二光纤连接在多路复用器和标准样品之间，用于产生已知的光谱结果。 使用相同或附加的光纤来从待分析的材料返回光。 每个光纤具有由护套覆盖的端部，以将光纤与恶意环境隔离。 护套具有被透明窗覆盖的开口端，透明窗优选地由金刚石制成，以密封并保护护套中的光纤。

公开(公告)号：US4647210A

公开(公告)日：1987-03-03

申请号：US745775

申请日：1985-06-17

Applicant: Thomas E. Morris ,  Tarver G. Snedecor, Jr.

Inventor： Thomas E. Morris ,  Tarver G. Snedecor, Jr.

IPC: G01N21/09 ,  G01N21/31 ,  G01N21/85

CPC classification number: G01N21/85 ,  G01N21/09 ,  G01N21/314 ,  G01N2201/084

Abstract: For measurement of chlorine concentration in a process stream, an improved device is set forth measuring light transmission in a selected frequency range. The preferred embodiment uses a light source, a light filter and an optical fiber extending to a pipe or other vessel with flowing chlorine. The light is transmitted from a lens system to another lens system and into a second optical fiber. The second fiber extends to a measuring device.

Abstract translation: 为了测量工艺流中的氯浓度，提出了在所选频率范围内测量光透射率的改进装置。 优选实施例使用延伸到具有流动氯的管道或其它容器的光源，光过滤器和光纤。 光从透镜系统传输到另一透镜系统并进入第二光纤。 第二根纤维延伸到测量装置。

公开(公告)号：US4626693A

公开(公告)日：1986-12-02

申请号：US480844

申请日：1983-03-31

Applicant: Tomas B. Hirschfeld

Inventor： Tomas B. Hirschfeld

IPC: G01N21/25 ,  G01N21/64 ,  G01N21/80 ,  F21V9/16

CPC classification number: G01N21/7703 ,  G01N21/255 ,  G01N21/643 ,  G01N2021/6434 ,  G01N2021/6484 ,  G01N2021/7786 ,  G01N21/80 ,  G01N2201/08 ,  G01N2201/084

Abstract: A technique for gathering specific information from various remote locations, especially fluorimetric information characteristic of particular materials at the various locations is disclosed herein. This technique uses a single source of light disposed at still a different, central location and an overall optical network including an arrangement of optical fibers cooperating with the light source for directing individual light beams into the different information bearing locations. The incoming light beams result in corresponding displays of light, e.g., fluorescent light, containing the information to be obtained. The optical network cooperates with these light displays at the various locations for directing outgoing light beams containing the same information as their cooperating displays from these locations to the central location. Each of these outgoing beams is applied to a detection arrangement, e.g., a fluorescence spectroscope, for retrieving the information contained thereby.

Abstract translation: 本文公开了用于从各种远程位置收集特定信息的技术，特别是在各个位置处特定材料的特征的荧光信息。 该技术使用设置在不同的中心位置处的单个光源，以及包括与光源协作的光纤布置的整个光学网络，用于将各个光束引导到不同的信息承载位置。 入射光束产生包含要获得的信息的光的相应显示，例如荧光灯。 光网络与各种位置处的这些光显示器协作，用于将包含与它们的协作显示器相同的信息的出射光束从这些位置引导到中心位置。 这些输出光束中的每一个被施加到检测装置，例如荧光分光镜，用于检索由此包含的信息。

公开(公告)号：EP3132295A1

公开(公告)日：2017-02-22

申请号：EP15714504.6

申请日：2015-04-07

Applicant: Koninklijke Philips N.V.

Inventor： WIJBRANS, Klaas Cornelis Jan ,  LUCASSEN, Gerhardus Wilhelmus ,  HENDRIKS, Bernardus Hendrikus Wilhelmus ,  REICH, Christian ,  VAN ROOIJ, Johannes Antonius ,  KNOESTER, Jaap

IPC: G02B6/38

CPC classification number: G01N21/276 ,  G01N2201/084 ,  G02B6/3825 ,  G02B6/3845 ,  G02B6/3849 ,  G02B6/3866 ,  G02B6/3885

Abstract: The present invention relates to an optical fiber connector for mating a first group of one or more optical fibers (102) with one or more corresponding optical fibers in a second group of one or more optical fibers (103). The optical fiber connector in dudes a shutter (105), which prevents the ingress of debris into the connector, and provides an optical reference surface with which to calibrate optical fibers that are inserted into the connector. The optical fiber connector finds application in the general optical fiber field, and more particularly finds application in the medical field in which it may be used to connect optical fibers in a photonic needle application.

Abstract translation: 本发明涉及一种光纤连接器，用于在第一组一根或多根光纤（103）中将第一组一根或多根光纤（102）与一根或多根相应的光纤配合。 光纤连接器配有快门（105），其防止碎屑进入连接器，并提供光学参考表面，用于校准插入到连接器中的光纤。 光纤连接器在普通光纤领域中得到应用，更具体地说可以应用于可用于在光针应用中连接光纤的医疗领域。