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公开(公告)号：US5428696A
公开(公告)日：1995-06-27
申请号：US92162
申请日：1993-07-15
Applicant: Jerry E. Cahill , David H. Tracy
Inventor： Jerry E. Cahill , David H. Tracy
CPC classification number: G02B6/3604 , G01N21/253 , G01N2201/0407 , G01N2201/084 , G02B6/32 , G02B6/4214
Abstract: In a spectrophotometer, each of a plurality of source optical fibers is selectively receptive of source radiation and carries the radiation to a corresponding selected liquid sample cell. A corresponding return optical fiber returns transmitted radiation from the sample to a polychromator. For selecting a sample, a switching member holds exposed ends of the optical fibers on a circle coaxial with an axle for rotating to selected positions. Respective optical trains in the instrument direct radiation into and out of the selected pair of fibers. The diameter of a source aperture, the spacing of the aperture from the radiation source, and the source area define a source etendue. The optical fibers have a fiber etendue substantially the same as the source etendue.
Abstract translation: 在分光光度计中，多个源光纤中的每一个选择性地接受源辐射，并将辐射传送到相应的选定液体样品池。 相应的返回光纤将来自样品的透射辐射返回到多色分光器。 为了选择样品，切换构件将光纤的露出端保持在与轴同轴的圆上，以旋转到选定位置。 仪器中的各种光学列车直接辐射进出所选择的一对光纤。 源孔径的直径，孔径与辐射源的距离以及源区域定义了源极化程度。 光纤具有基本上等于光源渗透率的纤维光密度。
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公开(公告)号：US5255074A
公开(公告)日：1993-10-19
申请号：US686776
申请日：1991-04-17
Applicant: Chris L. Kimbell , Robert M. Hayman , W. Jay Szinyei
Inventor： Chris L. Kimbell , Robert M. Hayman , W. Jay Szinyei
CPC classification number: G01N21/8483 , G01N21/783 , G01N2201/084 , G01N2201/122 , G01N2201/127
Abstract: A concentration measuring apparatus is provided having a fluid sensing means, an optic transmission means, a signal processing means, and an interface means. The fluid sensing means comprises a reflective sensing media in a self-contained cassette. The cassette is operationally associated with a sample chamber. The cassette advances the reflective sensing media by a motor which is driven by the signal processing means. The optic means comprises a fiber optic line which is partially associated with a lamp and partially associated with a photocell. Light having a wave length in a specified range originates from the lamp, passes through a portion of the fiber optic cable and is cast upon the reflective sensing media. The altnerate portion of the fiber optic cable receives the reflected light from the reflective sensing media for transfer to the photocell. A signal is generated by the photocell representative of the change of reflectivity of the light from the reflective sensing media. The signal from the photocell is accepted by the signal processing means. The signal processing means contains an amplifier, an analog to digital converter, a computer and associated controls. The interface means is associated with the signal processing means. The interface means comprises a display, a 4-to-20 milliamp card and remote, explosion-proof switches for operator interaction with the concentration measuring apparatus. Also, the interface means is the link to an outside printer, an outside analog recorder as well as an outside host computer.
Abstract translation: 提供了具有流体感测装置，光学传输装置，信号处理装置和接口装置的浓度测量装置。 流体感测装置包括在独立盒中的反射感测介质。 盒子可操作地与样品室相关联。 盒通过由信号处理装置驱动的电动机使反射感测介质前进。 光学装置包括与灯部分相关并部分地与光电池相关联的光纤线路。 具有指定范围内的波长的光源自灯，通过光纤电缆的一部分并被投射在反射感测介质上。 光纤电缆的高级部分接收来自反射感测介质的反射光，以转移到光电池。 由光电管产生代表来自反射感测介质的光的反射率变化的信号。 来自光电管的信号被信号处理装置所接受。 信号处理装置包括放大器，模数转换器，计算机和相关的控制。 接口装置与信号处理装置相关联。 接口装置包括显示器，4至20毫安卡和用于操作者与浓度测量装置相互作用的远程防爆开关。 此外，接口装置是指向外部打印机，外部模拟记录器以及外部主机的链接。
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103.发明授权
公开(公告)号：US5172193A
公开(公告)日：1992-12-15
申请号：US480629
申请日：1990-02-15
Applicant: Frederick A. Payne , Clair L. Hicks
Inventor： Frederick A. Payne , Clair L. Hicks
CPC classification number: G01N33/04 , G01N21/4738 , G01N2021/4769 , G01N2201/084
Abstract: An apparatus for predicting milk coagulum cut-time in a cheese making process includes a light source, a sensor or detector for sensing diffuse reflectance of light from said milk and a controller for analyzing the diffuse reflectance and accurately predicting the cut-time to significantly enhance overall yield. More specifically, the apparatus includes an optical probe which may be suspended over the milk or attached to a wall of a fermentation vessel in which the milk is contained. A method for predicting milk coagulum cut-time includes the steps of (a) directing light from a light source toward milk undergoing enzymatic hydrolysis; (b) sensing diffuse reflectance of that light from the milk; (c) analyzing the sensed diffuse reflectance profile and (d) signaling the cut-time. The sensing occurs at between 400 to 6000 nm. Specific mathematical formulae for the analyzing steps are also disclosed.
Abstract translation: 用于预测奶酪制作过程中的牛奶凝结物切割时间的装置包括：光源，用于感测来自所述乳的光的漫反射率的传感器或检测器;以及用于分析漫反射率并准确预测切割时间以显着增强的控制器 总产量。 更具体地，该装置包括光学探针，其可以悬浮在牛奶上或附着到容纳牛奶的发酵容器的壁上。 一种用于预测牛奶凝结物切割时间的方法包括以下步骤：（a）将来自光源的光引向进行酶水解的牛奶; （b）检测来自牛奶的光的漫反射; （c）分析所感测的漫反射分布和（d）发信号的切割时间。 感测发生在400至6000nm之间。 还公开了用于分析步骤的具体数学公式。
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104.发明授权
公开(公告)号：US5155549A
公开(公告)日：1992-10-13
申请号：US603616
申请日：1990-10-25
Applicant: Harbans S. Dhadwal
Inventor： Harbans S. Dhadwal
CPC classification number: A61B5/6848 , A61B5/0084 , G01J3/4412 , G01N21/47 , G01J3/0208 , G01J9/04 , G01N15/0205 , G01N2015/0222 , G01N2021/4709 , G01N2021/4745 , G01N2201/084
Abstract: A system for determining the physical properties of materials through the use of dynamic light scattering is disclosed. The system includes a probe, a laser source for directing a laser beam into the probe, and a photodetector for converting scattered light detected by the probe into electrical signals. The probe includes at least one optical fiber connected to the laser source and a second optical fiber connected to the photodetector. Each of the fibers may adjoin a gradient index microlens which is capable of providing a collimated laser beam into a scattering medium. The position of the second optical fiber with respect to the optical axis of the probe determines whether homodyne or self-beating detection is provided. Self-beating detection may be provided without a gradient index microlens. This allows a very small probe to be constructed which is insertable through a hypodermic needle or the like into a droplet extending from such a needle. A method of detecting scattered light through the use of a collimated, Gaussian laser beam is also provided. A method for controlling the waist and divergence of the optical field emanating from the free end of an optical fiber is also provided.
Abstract translation: 公开了一种通过使用动态光散射来确定材料的物理性质的系统。 该系统包括探针，用于将激光束引导到探针中的激光源，以及用于将由探针检测到的散射光转换为电信号的光电检测器。 探头包括连接到激光源的至少一个光纤和连接到光电检测器的第二光纤。 每个光纤可以与能够将准直激光束提供到散射介质中的梯度折射率微透镜相邻。 第二光纤相对于探针的光轴的位置确定是否提供零差或自拍检测。 可以提供自跳动检测而没有梯度指数微透镜。 这允许构造非常小的探针，其可以通过皮下注射针等插入从这样的针延伸的液滴中。 还提供了通过使用准直的高斯激光束来检测散射光的方法。 还提供了用于控制从光纤的自由端发出的光场的腰部和发散的方法。
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公开(公告)号：US5042893A
公开(公告)日：1991-08-27
申请号：US611238
申请日：1990-11-09
Applicant: Ronald G. J. Ong
Inventor： Ronald G. J. Ong
CPC classification number: G02B6/40 , G01J3/02 , G01J3/0221 , G01J3/0291 , G02B6/3807 , G02B6/4249 , G01N2201/084 , G02B6/04 , G02B6/29308 , G02B6/2931 , G02B6/3885 , G02B6/4215
Abstract: A fiber optic coupler for use with a diode array spectrophotometer system that optimizes the optical interface between a first fiber optic waveguide employed to couple light from a sample under analysis and a diode array spectrograph. The coupler comprises a fiber optic waveguide connector that secures the first optical fiber waveguide that couples light from the sample under investigation. A slit block is provided that has a relatively thin, rectangular exit aperture having dimensions compatible with the spectrograph. A single waveguide (or plurality of fiber optic waveguides) is coupled between the connector and the exit aperture and is arranged to have a generally round cross section adjacent the connector and a linear cross section adjacent the spectrograph. Improved light throughput is achieved at the fiber optic waveguide-spectrophotometer interface, when compared with conventional fiber optic spectrophotometer designs. The coupler provides for easier assembly at the fiber optic waveguide to spectrophotometer interface and minimizes the total number of optical components in the system. The present invention eliminates misalignment of the fiber-slit interface of conventional designs, and provides better sensitivity and signal to noise. Furthermore, the present invention is simpler, and reduces the total number of optically active components which results in a lower unit cost. The use of fixed parts in the coupler elminates light loss associated with the tedius and difficult manual alignment at the fiber-slit interface. As a consequence, better sensitivity is achieved.
Abstract translation: 一种用于二极管阵列分光光度计系统的光纤耦合器，其优化用于耦合来自被分析的样品的光的第一光纤波导与二极管阵列光谱仪之间的光学接口。 耦合器包括光纤波导连接器，其固定耦合来自被调查样品的光的第一光纤波导。 提供了具有相对较薄的矩形出口孔的狭缝块，具有与该光谱仪相容的尺寸。 单个波导（或多个光纤波导）耦合在连接器和出口孔之间，并被布置成具有与连接器相邻的大致圆形的横截面和与该光谱仪相邻的线性横截面。 与传统的光纤分光光度计设计相比，在光纤波导 - 分光光度计界面上实现了光通量的提高。 耦合器提供了在光纤波导处更容易地组装到分光光度计接口并且最小化系统中的光学部件的总数。 本发明消除了常规设计的光纤狭缝界面的未对准，并且提供了更好的灵敏度和信噪比。 此外，本发明更简单，并且减少了导致较低单位成本的光学活性组分的总数。 在耦合器中使用固定部件会降低与Tedius相关的光损失，并且在光纤切口界面处难于手动对准。 因此，实现更好的灵敏度。
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Patent Agency Ranking
公开(公告)号：US5035508A
公开(公告)日：1991-07-30
申请号：US139181
申请日：1987-12-29
Applicant: Timothy J. N. Carter , Roger A. Bunce
Inventor： Timothy J. N. Carter , Roger A. Bunce
CPC classification number: A61B5/0059 , G01N21/255 , G01J1/1626 , G01J2003/1226 , G01N2021/1742 , G01N2201/0696 , G01N2201/084
Abstract: A light absorption analyzer can work in either a reflection or a transmission mode, according to which probe head is fitted to it.Light is caused to be of a desired wavelength for the analysis by passing non-monochromatic light from a high-intensity flash tube source (which is not a point source) to an interference filter. Only parallel light emanating from the filter is focused by a concave parabolic mirror on a point where at least one fibre-optic collector is positioned. This light can then be passed directly to the probe for passage through the sample, since it is only light of a specified wavelength which will have travelled parallel from the filter and will therefore be focused at the point. Some of the light is taken off a reference detector to provide a reference signal for comparison with that derived from a test detetor fed by a return fibre-optic from the probe. A comparator is programmed to give a quantitiative readout of the absorption by the test sample.
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公开(公告)号：US4919533A
公开(公告)日：1990-04-24
申请号：US275146
申请日：1988-11-15
Applicant: Heather J. Bowley , Donald L. Gerrard , John E. Preedy
Inventor： Heather J. Bowley , Donald L. Gerrard , John E. Preedy
CPC classification number: G01N21/87 , G01N21/65 , G01V8/02 , G01N2021/651 , G01N2021/656 , G01N2021/8528 , G01N2201/084
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: PCT No.PCT / GB88 / 00187 Sec。 371日期：1988年11月15日 102（e）1988年11月15日日期PCT PCT 3月10日PCT PCT。 出版物WO88 / 07213 日期：1988年9月22日。一种用于在不容易获得的位置检测钻石的方法包括通过适于进入该位置的装置照射怀疑含有钻石的材料，通过适于进入该位置的装置收集所得的散射拉曼辐射， 过滤和感测辐射，以便在感测到钻石的辐射特性时产生信号，从而指示该位置中不存在或存在钻石。
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108.发明授权Optical-fiber raman spectroscopy used for remote in-situ environmental analysis 失效光纤拉曼光谱仪用于远程现场环境分析
公开(公告)号：US4802761A
公开(公告)日：1989-02-07
申请号：US93093
申请日：1987-08-31
Applicant: John M. Bowen , Patrick J. Sullivan , M. Sterling Blanche , Michael Essington , Lewis J. Noe
Inventor： John M. Bowen , Patrick J. Sullivan , M. Sterling Blanche , Michael Essington , Lewis J. Noe
CPC classification number: G01N21/658 , G01N21/03 , G01N2021/3595 , G01N2021/651 , G01N2021/656 , G01N2201/08 , G01N2201/084
Abstract: Method and apparatus are provided for remote in-situ detection and/or monitoring of selected compounds in liquid or gaseous media using one of several methods of Raman spectroscopy. The resulting Raman signal is conducted through optical fibers for recording a Raman spectrum at a distance from the instrument.
Abstract translation: 提供了使用拉曼光谱法的几种方法之一远程原位检测和/或监测液体或气体介质中选定化合物的方法和装置。 所得到的拉曼信号通过光纤传导，用于在离仪器一定距离处记录拉曼光谱。
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公开(公告)号：JP6120946B2
公开(公告)日：2017-05-10
申请号：JP2015507423
申请日：2013-03-12
Inventor： ノアベアト クレフト
CPC classification number: G01N21/766 , G01N33/0037 , G01N2201/0636 , G01N2201/0806 , G01N2201/084 , G01N2201/0846 , Y02A50/245
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公开(公告)号：JP5856058B2
公开(公告)日：2016-02-09
申请号：JP2012524791
申请日：2010-08-10
Applicant: ゾロ テクノロジーズ,インコーポレイティド
Inventor： バーナード パトリック マスターソン , ジェイムズ ハウエル , ヘンリック ホフバンダー , アンドリュー ディー.サッペイ
CPC classification number: F02C7/00 , G01N21/39 , F23N2025/16 , F23N2041/20 , F23N5/003 , G01N2021/4709 , G01N2201/084 , Y02T50/67
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