公开(公告)号：WO1993006459A1

公开(公告)日：1993-04-01

申请号：PCT/US1992007883

申请日：1992-09-17

Applicant: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.

Inventor： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. ,  PORTER, Marc, D. ,  JONES, Thomas, P.

IPC: G01N21/31

CPC classification number: G01N21/7703 ,  G01J2001/1636 ,  G01N21/80 ,  G01N2021/3181 ,  G01N2021/772 ,  G01N2201/062 ,  G01N2201/084 ,  G01N2201/0866

Abstract: A dual wavelength optical sensor for measuring the optical characteristics of sensing films which are responsive to a particular quantity to be measured. The optical sensor includes a light source (16, 18) for producing light outputs at two distinct wavelengths and transmitting twin components of light to first and second outputs. A time-shared optical fiber (26) receives the two distinct wavelengths of light from the first output and carries the light on a time-shared basis to a sensor probe (14). A sample detector (30) receives the two distinct wavelengths of light transmitted from the thin sensing film. A reference detector (34) receives the two distinct wavelengths of light from the second output and monitors the output intensity of the light source. A signal processing system (35) combines the measurements of the optical characteristics of the thin sensing film in response to each of the two distinct wavelengths to provide measurements which account for changes in the optical properties of the thin sensing film.

Abstract translation: 一种双波长光学传感器，用于测量响应于要测量的特定量的感测膜的光学特性。 光学传感器包括用于产生两个不同波长的光输出的光源（16,18），并将光的双分量传输到第一和第二输出。 时分共享的光纤（26）从第一输出接收两个不同波长的光，并将时间共享的光传送到传感器探头（14）。 样本检测器（30）接收从薄感测膜传输的两种不同波长的光。 参考检测器（34）接收来自第二输出端的两个不同波长的光，并监视光源的输出强度。 信号处理系统（35）响应于两个不同波长中的每一个组合了薄感测膜的光学特性的测量，以提供考虑薄感测膜的光学性质变化的测量。

公开(公告)号：WO1990014581A1

公开(公告)日：1990-11-29

申请号：PCT/SE1990000334

申请日：1990-05-18

Applicant: OPSIS AB ,  WALLIN, Svante ,  UNÉUS, Leif

Inventor： OPSIS AB

IPC: G01J03/42

CPC classification number: G01N21/3504 ,  G01N2021/0314 ,  G01N2021/3513 ,  G01N2201/084

Abstract: An apparatus for emitting and receiving light comprises an emitter, which consists of a light source (5) and a concave mirror (7), and a receiver which receives light from the emitter and which is connected to an analysing equipment (3). Furthermore, the receiver comprises a concave mirror (9) which is disposed behind the mirror (7) of the emitter and whose diameter is larger than that of the mirror (7) of the emitter and whose focus is located in front of the light source (5). In the focus of the mirror (9) is positioned one end of an optical fibre (19) for transmitting the received light to the analysing equipment (3). Moreover, the apparatus comprises a retro-reflector unit (17) for reflecting the light from the emitter to the receiver, and a movable shielding element (11) which is provided between the light source (5) and the optical fibre (19) and which prevents, in a first position, the light from the light source from reaching the optical fibre directly, and lets through, in a second position, the light from the light source directly to the optical fibre.

公开(公告)号：WO2016075438A1

公开(公告)日：2016-05-19

申请号：PCT/GB2015/053307

申请日：2015-11-03

Applicant: OPTOSCI LIMITED

Inventor： WALSH, Douglas ,  MAUCHLINE, Iain ,  DOYLE, Jim ,  PILLANS, John ,  ARMSTRONG, Ian

IPC: G01N21/35 ,  G01N21/39

CPC classification number: G01N21/39 ,  G01N2201/0826 ,  G01N2201/084

Abstract: A modular architecture is implemented in the apparatus providing a multipoint optical gas sensing network. A laser beam from a tunable laser diode source is split and each of the resulting beams is directed via optical fibres to respective gas sensing cells. As the laser beam is configured to sweep a range of frequencies spanning a characteristic absorption frequency of a target gas, a measurement of the level of absorption of the light from the laser beam incident at each cell is correlated with the concentration of the target gas. Photodetectors are arranged to receive light transmitted through the respective cells and the attenuation sensed in the laser beam is attributed to absorption (once other factors have been corrected for). The photodetectors are arranged in groups on receiver modules: receiver modules are provided with dedicated processing capability.

Abstract translation: 在提供多点光学气体感测网络的装置中实现模块化架构。 来自可调谐激光二极管源的激光束被分裂，并且所得到的每个光束通过光纤被引导到相应的气体感测单元。 由于激光束被配置为扫描跨越目标气体的特征吸收频率的频率范围，所以来自入射到每个电池的激光束的光的吸收水平的测量与目标气体的浓度相关。 光检测器被布置成接收透过各个单元的光，并且在激光束中感测到的衰减归因于吸收（一旦其它因素已被校正）。 光电检测器在接收器模块上分组布置：接收器模块具有专用处理能力。

公开(公告)号：WO2009138399A1

公开(公告)日：2009-11-19

申请号：PCT/EP2009/055708

申请日：2009-05-12

Applicant: Centre de Recherches Métallurgiques asbl - Centrum voor Research in de Metallurgie vzw ,  MONFORT, Guy

Inventor： MONFORT, Guy

IPC: G01N21/71

CPC classification number: G01N21/718 ,  G01N2201/0233 ,  G01N2201/08 ,  G01N2201/084

Abstract: La présente invention se rapporte à une installation d'analyse chimique d'un bain (20) porté à haute température munie d'une tête d'analyse par spectroscopie laser-plasma de type LIBS, comprenant un laser puisé de grande énergie (2) apte à émettre à distance un faisceau de lumière focalisé dans une région du bain (20) de composition chimique à déterminer, pour créer un plasma localement et comprenant un spectromètre (13) pour l'analyse spectrale de la lumière émise par ledit plasma, caractérisée en ce que le laser (2) est déporté latéralement grâce à un tube (3) le prolongeant et terminé par une lentille focalisatrice du faisceau laser (4), et grâce à une première fibre optique (5) dont une première extrémité (5A) se trouve au niveau de ladite lentille focalisatrice (4).

Abstract translation: 本发明涉及一种用于化学分析加热到高温的浴（20）的设备，其具有LIBS激光等离子体光谱分析头，其包括能够远程发射聚焦到光束中的光束的高能量脉冲激光器（2） 为了产生等离子体，包括用于对所述等离子体发射的光进行光谱分析的光谱仪（13），其特征在于，所述激光器（2）具有要确定的化学组成的浴液区域， 由于管（3）被横向偏移，管（3）延伸并且终止于用于聚焦激光束（4）的透镜，并且由于第一光纤（5），其第一端（5A）位于 所述聚焦透镜（4）。

公开(公告)号：WO2005078412A1

公开(公告)日：2005-08-25

申请号：PCT/GB2005/000073

申请日：2005-01-13

Applicant: ROLLS-ROYCE PLC ,  BLACK, John, David

Inventor： BLACK, John, David

IPC: G01N21/35

CPC classification number: G01N21/3504 ,  G01N21/09 ,  G01N21/65 ,  G01N2021/0389 ,  G01N2021/3531 ,  G01N2021/651 ,  G01N2201/0806 ,  G01N2201/084 ,  H01M8/0236 ,  H01M8/04089 ,  H01M8/0444 ,  H01M2008/1293

Abstract: A gas composition monitoring arrangement for a module (2) used in a solid oxide fuel cell comprises provision of an optically transparent window (4) in the end of a gas flow channel (3) formed in that module (2). Thus, the window (4) allows passive and active optical gas analysis of the gas flow through the channel in situ without the necessity as with previous systems of drawing a proportion of that gas flow away from the module (2) and therefore fuel cell for appropriate analysis. In such circumstances, actual in situ gas composition determination is achieved rather than a determination which may be distorted through the transfer regime to a previous remote gas analysis apparatus.

Abstract translation: 用于固体氧化物燃料电池的模块（2）的气体成分监测装置包括在形成于该模块（2）中的气体流动通道（3）的端部设置光学透明的窗口（4）。 因此，窗口（4）允许通过原位通过通道的气流的被动和主动的光学气体分析，而不需要像以前的系统那样将一部分气体流量从模块（2）中抽出，因此燃料电池用于 适当分析。 在这种情况下，实现实际的原位气体成分测定，而不是可以通过转移方式扭曲到先前的远程气体分析装置的确定。

公开(公告)号：WO2004051178A3

公开(公告)日：2005-08-04

申请号：PCT/US0338184

申请日：2003-11-26

Applicant: OG TECHNOLOGIES INC

Inventor： CHANG TZYY-SHUH ,  HUANG HSUN-HAU ,  GUTCHESS DANIEL

IPC: G01B20060101 ,  G01B11/30 ,  G01N21/88 ,  G01N21/95 ,  G01N21/952 ,  G06K9/00 ,  H04N7/18 ,  H04N9/47

CPC classification number: H04N7/18 ,  G01N21/952 ,  G01N2201/0826 ,  G01N2201/084

Abstract: The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically crosssection reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured.

Abstract translation: 本发明旨在解决与金属棒上的表面缺陷的检测有关的问题以及将金属平面检查系统应用于金属棒用于非破坏性表面缺陷检测的问题。 为了上述目的开发了一种专门设计的成像系统，由计算单元，线路灯和高数据速率线扫描摄像机组成。 目标应用是当给定形状的横截面积为1时，具有等于或小于4.25的圆周/横截面积比的金属棒（1），（2）横截面为圆形，椭圆形 ，或多边形的形状，以及（3）通过机械交叉缩小处理制造。 所述金属可以是钢，不锈钢，铝，铜，青铜，钛，镍等，和/或它们的合金。 所述金属棒可以处于制造时的温度。

公开(公告)号：WO0140771A2

公开(公告)日：2001-06-07

申请号：PCT/US0032483

申请日：2000-11-29

Applicant: APS TECHNOLOGY INC ,  OLD DOMINION UNIVERSITY RES FO

Inventor： TURNER WILLIAM EDWARD ,  BIGLIN DENIS P JR ,  COOPER JOHN BRITTAIN ,  AUST JEFFREY FRANCIS

IPC: E21B47/10 ,  G01N21/27 ,  G01N21/31 ,  G01N21/64 ,  G01N21/85 ,  G01N33/28 ,  G01N21/00

CPC classification number: G01N21/274 ,  E21B47/102 ,  G01N21/31 ,  G01N21/64 ,  G01N21/8507 ,  G01N33/2823 ,  G01N2201/084

Abstract: A method and apparatus for determining the concentration of a constituent in a fluid by directing a beam of light into the fluid and sensing the intensity of components of the light emerging from the fluid at various wavelengths. The light emerging from the fluid can be light that has been attenuated by absorption or induced by fluorescent radiation. The effect of scattering on the light is minimized by normalizing the component intensities, which are then applied to an algorithm incorporating weighting factors that weighs the influence that the intensity at each wavelength has on the determination of the concentration of the constituent for which the algorithm was developed. The algorithm is developed by a regression analysis based upon a plurality of known mixtures containing various concentrations of the constituent of interest.

Abstract translation: 一种用于通过将光束引导到流体中并且感测从各种波长的流体出射的光的分量的强度来确定流体中组分浓度的方法和装置。 从流体出射的光可以是通过吸收衰减或由荧光辐射诱导的光。 散射对光的影响通过归一化成分强度来最小化，然后将其应用于包含加权因子的算法，该加权因子重量每个波长的强度对确定算法的成分的浓度的影响 发达。 该算法通过基于包含各种浓度的感兴趣成分的多种已知混合物的回归分析来开发。

公开(公告)号：WO1993007453A1

公开(公告)日：1993-04-15

申请号：PCT/US1992008384

申请日：1992-10-02

Applicant: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.

Inventor： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. ,  D'SILVA, Arthur, P. ,  JASELSKIS, Edward, J.

IPC: G01J03/30

CPC classification number: E21B7/15 ,  E21B49/005 ,  E21B49/02 ,  G01N1/2202 ,  G01N21/73 ,  G01N2001/2223 ,  G01N2021/0118 ,  G01N2201/0216 ,  G01N2201/084

Abstract: A system for sampling and analyzing a material located at a hazardous site. A laser (12) located remote from the hazardous site is connected to an optical fiber (16) which directs laser radiation proximate the material at the hazardous site. The laser radiation ablates a sample of the material. An inductively coupled plasma (32) is located remotely from the material. An aerosol transport system carries the ablated particles to a plasma, where they are dissociated, atomized and excited to provide characteristic optical reduction of the elemental constituents of the sample. An optical spectrometer (40) is located remotely from the site. A second optical fiber (38) is connected to the optical spectrometer at one end and the plasma source at the other end to carry the optical radiation from the plasma source (32) to the spectrometer (40).

Abstract translation: 用于对位于危险场所的材料进行采样和分析的系统。 位于远离危险场所的激光器（12）连接到光纤（16），该光纤引导在危险场所处的材料附近的激光辐射。 激光辐射消除了材料的样品。 电感耦合等离子体（32）远离材料定位。 气溶胶输送系统将烧蚀的颗粒携带到等离子体，在那里它们被离解，雾化和激发，以提供样品的元素成分的特征光学还原。 光谱仪（40）远离现场。 第二光纤（38）在一端连接到光谱仪，另一端连接等离子体源，以将来自等离子体源（32）的光辐射传送到光谱仪（40）。

公开(公告)号：WO1990010720A1

公开(公告)日：1990-09-20

申请号：PCT/AU1990000098

申请日：1990-03-09

Applicant: THE BROKEN HILL PROPRIETARY COMPANY LIMITED ,  SAMPSON, Peter, John ,  KEMLO, Kenneth, Garry

Inventor： THE BROKEN HILL PROPRIETARY COMPANY LIMITED

IPC: C21C05/46

CPC classification number: C21C5/4673 ,  F27D21/02 ,  G01N21/71 ,  G01N2201/084

Abstract: During the tapping of molten steel from the converter prior to continuous casting, the onset of slag from the taphole is difficult to detect. Excessive slag carryover from the converter results in a rich slag cover for the steel, favouring reversion of phosphorus, manganese (and other constituents if present) in the quiescent state. The onset of slag is detected remotely, based on the fact that the spectral emission lines of sodium and potassium may be resolved in the light emission from the steel, which characteristic is absent in the slag. The optical emissions (1) from the furnace taphole are accessed by an optical head (200) about 20 metres distant, focussed by a lens (2) and divided by a beamsplitter (3). Each path after the beamsplitter (3) has an optical interference filter (4, 6) placed before a photodetector (5, 7). Optical interference filter (6) passes wavelengths centred on the emission line (589.3 nm for Na or 768.2 nm for K) and optical interference filter (4) passes wavelengths centred adjacent to the emission line, so that the output of photodetector (5) is proportional to background radiation only. Light not passed by the filters (4, 6) is reflected back towards the furnace. Some light (11) is incident upon a translucent screen (8) and this is used to align the instrument during installation. The outputs of the photodiodes are fed into an automatic control and output system with fibre optics, alarm indicators and computer control.

Abstract translation: 在连续铸造之前从转炉中取出钢水期间，难以发现来自出钢口的炉渣。 从转炉中过剩的炉渣会导致钢的丰富的炉渣盖，有利于在静止状态下磷，锰（和其他成分如果存在）的回归。 基于以下事实可以远程检测炉渣的发生：钠和钾的光谱发射线可以在钢的光发射中解析，炉渣中不存在特征。 来自炉出口的光发射（1）由距离约20米的光学头（200）进行访问，由透镜（2）聚焦并由分束器（3）分开。 在分束器（3）之后的每个路径具有放置在光电检测器（5,7）之前的光学干涉滤光器（4,6）。 光干涉滤光片（6）通过以发射线为中心的波长（对于Na为589.3nm，对于K为768.2nm），光学干涉滤光器（4）通过与发射线相邻的波长，使得光电检测器（5）的输出为 与背景辐射成比例。 过滤器（4,6）未通过的光反射回炉子。 一些光（11）入射到半透明屏幕（8）上，这用于在安装期间对准仪器。 光电二极管的输出馈送到具有光纤，报警指示器和计算机控制的自动控制和输出系统。

公开(公告)号：WO1988007213A1

公开(公告)日：1988-09-22

申请号：PCT/GB1988000187

申请日：1988-03-10

Applicant: THE BRITISH PETROLEUM COMPANY P.L.C. ,  BOWLEY, Heather, Jane ,  GERRARD, Donald, Leslie ,  PREEDY, John, Edward

Inventor： THE BRITISH PETROLEUM COMPANY P.L.C.

IPC: G01V09/04

CPC classification number: G01N21/87 ,  G01N21/65 ,  G01N2021/651 ,  G01N2021/656 ,  G01N2021/8528 ,  G01N2201/084 ,  G01V8/02

Abstract: A method for detecting diamonds in locations which are not easily accessible comprises irradiating material suspected of containing diamonds by means adapted for access to the location, collecting the resultant scattered Raman radiation by means adapted for access to the location and filtering and sensing the radiation to produce a signal whenever radiation characteristic of diamonds is sensed whereby the absence or the presence of diamonds in the location is indicated.

Abstract translation: 用于检测不容易获得的位置中的金刚石的方法包括通过适于进入该位置的装置照射怀疑含有金刚石的材料，通过适于进入该位置的装置收集所得到的散射拉曼辐射，并过滤和感测辐射以产生 每当检测到钻石的辐射特性时，就会发出一个信号，从而指示该位置处不存在或存在钻石。