公开(公告)号：US4940902A

公开(公告)日：1990-07-10

申请号：US261754

申请日：1988-10-24

Applicant: Emmanuel Mechalas ,  Laverne E. Foran

Inventor： Emmanuel Mechalas ,  Laverne E. Foran

IPC: G01N21/15 ,  G01N21/85

CPC classification number: G01N21/8507 ,  G01N2021/152 ,  G01N2201/0826 ,  G01N2201/0833 ,  G01N2201/084

Abstract: An apparatus and method continuously samples and measures the changing concentration and/or density of suspended solids in a liquid medium without electrical connections at the submerged points in the liquid. A submersible sensing head is connected by an elongate probe to an non-submersible enclosure which contains at least one light source and one light detector. The sensing head has an apertured sample chamber allowing liquid to flow freely therethrough when submerged and contains at least one light emitting lens and at least one light receiving lens aligned in the flow path. The light emitting lens is connected to the light source and the light receiving lens is connected to the light detector with fiber optic bundles extending the probe. An elongate shaft extends through the probe and into the sensing head sample chamber and has a lens wiper at its lower end. The shaft is reciprocated by a timed motor in the enclosure to move the lens wiper between the lenses to wipe them clean of debris at selective continuous or intermittent cycles. When the sensing head is submerged light is transmitted from the light source to the emitting lens through the liquid between the lenses to the receiving lens and to the light detector for determining the concentration and/or density of suspended solids in the sample liquid with no submerged electrical connections.

Abstract translation: 一种装置和方法连续地采样和测量液体介质中悬浮固体的变化浓度和/或密度，而液体中浸没点处没有电连接。 潜水感测头通过细长探针连接到包含至少一个光源和一个光检测器的非潜水外壳。 感测头具有有孔的样品室，允许液体在浸没时自由流动，并且包含至少一个发光透镜和至少一个在流动路径中对准的光接收透镜。 发光透镜连接到光源，并且光接收透镜通过延伸探针的光纤束连接到光检测器。 细长轴延伸穿过探头并进入感测头样品室，并在其下端具有透镜擦拭器。 轴通过外壳中的定时电机往复运动，以在透镜之间移动透镜擦拭器，以在选择性连续或间歇循环中擦拭清洁的碎屑。 当感测头被浸没时，光从光源通过透镜之间的液体传递到发射透镜到接收透镜，并且到光检测器，用于确定样品液体中悬浮固体的浓度和/或密度，而不会浸没 电气连接。

公开(公告)号：US4881811A

公开(公告)日：1989-11-21

申请号：US156471

申请日：1988-02-16

Applicant: John K. O'Brien

Inventor： John K. O'Brien

IPC: A61C19/10 ,  G01J3/02 ,  G01J3/08 ,  G01J3/46 ,  G01N21/25

CPC classification number: G01J3/02 ,  A61C19/10 ,  G01J3/0218 ,  G01J3/0251 ,  G01J3/08 ,  G01J3/46 ,  G01J3/502 ,  G01J3/508 ,  G01J3/524 ,  G01N21/255 ,  G01N2021/4742 ,  G01N2021/4752 ,  G01N2201/065 ,  G01N2201/084

Abstract: A probe, for use with a spectrophotometer, which senses the reflectance of a sample remote from the spectrophotometer. The probe includes a housing having a probe portion positionable proximate the sample, and an integrating chamber disposed within the probe housing and having a radiation input port, a sample port for passing diffused radiation to the sample and returning reflected radiation from the sample, a reference port, and an exit port to receive radiation reflected from the sample through the sample port. The probe further includes a guide for directing radiation to the radiation input port from a radiation source, and an element, responsive to the exit port and the reference port, for selectively conveying reflected radiation from the sample and the wall of the integrating chamber in the probe to the remote spectrophotometer.

Abstract translation: 用于分光光度计的探针，用于检测远离分光光度计的样品的反射率。 探针包括具有靠近样品定位的探针部分的壳体和设置在探针壳体内并具有辐射输入端口的积分室，用于将扩散的辐射传递到样品并返回来自样品的反射辐射的采样端口，参考 端口和出口，用于接收从样品通过样品端口反射的辐射。 探头还包括用于将辐射从辐射源引导到辐射输入端口的引导件，以及响应于出口和参考端口的元件，用于选择性地将反射的辐射从样品和积分室的壁传递到 探头到远程分光光度计。

公开(公告)号：US20240230518A9

公开(公告)日：2024-07-11

申请号：US18180187

申请日：2023-03-08

Applicant: HOSAN TECH CO., LTD.

Inventor： Chul Won KIM ,  Sung Won JEON ,  Kyoung Ho PARK ,  Min Ki PARK

IPC: G01N21/05 ,  G01N21/03 ,  G01N21/31

CPC classification number: G01N21/05 ,  G01N21/0303 ,  G01N21/31 ,  G01N2021/052 ,  G01N2201/084

Abstract: Provided is a concentration measuring device which includes: a main pipe through which a fluid whose concentration is to be measured flows; a flow cell having a fluid passage and a light passage formed to pass through the fluid passage; a spectrometer capable of measuring absorbance for each wavelength of the source light transmitted to the flow cell and the received light receiving from the flow cell; and an optical cable connecting the flow cell and the spectrometer with each other, wherein the flow cell is separated from the main pipe to be provided separately, and a fluid pipe is connected to the flow cell, so that the fluid flows from the main pipe to the flow cell through the fluid pipe using a pitot tube.

公开(公告)号：US20240142422A1

公开(公告)日：2024-05-02

申请号：US17977987

申请日：2022-10-31

Applicant: Halliburton Energy Services, Inc.

Inventor： Glenn Wilson ,  Andreas Ellmauthaler ,  John Laureto Maida

IPC: G01N33/00 ,  G01K11/322 ,  G01N21/01

CPC classification number: G01N33/0031 ,  G01K11/322 ,  G01N21/01 ,  G01N33/0016 ,  G01N33/0073 ,  G01N2201/0833 ,  G01N2201/084

Abstract: A method and system for a fiber optic sensing (FOS) system. The system may include an interrogator that is marinized to be disposed on a sea floor, a fiber optic cable optically connected to the interrogator, and one or more downhole sensing fibers optically connected to the fiber optic cable. The method may include disposing the interrogator on the sea floor and connecting the interrogator to a fiber optic cable. The method may further include connecting one or more downhole sensing fibers to the fiber optic cable and taking one or more measurements using the interrogator.

公开(公告)号：US11808707B2

公开(公告)日：2023-11-07

申请号：US16854213

申请日：2020-04-21

Applicant: THERMO ELECTRON SCIENTIFIC INSTRUMENTS LLC

Inventor： George L. Skupniewicz ,  Francis J. Deck

IPC: G01N21/65 ,  G02B27/10 ,  G02B26/08 ,  G02B21/00 ,  G02B21/18 ,  G02B27/14 ,  G02B21/36 ,  G01N21/64 ,  G02B21/16

CPC classification number: G01N21/65 ,  G01N21/64 ,  G02B21/0004 ,  G02B21/16 ,  G02B21/18 ,  G02B21/362 ,  G02B26/0816 ,  G02B27/1006 ,  G02B27/141 ,  G01N2201/0636 ,  G01N2201/06113 ,  G01N2201/084

Abstract: An embodiment of a module system configured to interface with a microscope is described that comprises an input optical fiber configured to provide an excitation light beam from an external light source; dynamic alignment mirrors configured to adjust the position of the beams paths of the excitation light beam on a first plane; a coupling comprising a first end configured to engage with a complementary end, wherein the excitation light reflects off a turning mirror and travels along a beam path on a second plane through an orifice in the coupling; and an output optical fiber for delivering light from a sample to an external detector, wherein the light from the sample travels along the beam path on the second plane through the orifice in the coupling, reflects off the turning mirror and travels along one of the beam paths on the first plane to the output optical fiber.

公开(公告)号：US09958419B2

公开(公告)日：2018-05-01

申请号：US14621743

申请日：2015-02-13

Applicant: FUJIFILM Corporation

Inventor： Kaku Irisawa

IPC: A61B5/00 ,  F21V13/02 ,  G01N21/17 ,  G01N29/22 ,  G01N21/63 ,  F21V8/00 ,  G02B6/42 ,  G02B6/36

CPC classification number: G01N29/223 ,  A61B5/0095 ,  F21V13/02 ,  G01N21/1702 ,  G01N21/63 ,  G01N2021/1706 ,  G01N2201/084 ,  G02B6/0005 ,  G02B6/3624 ,  G02B6/4206 ,  G02B6/4292

Abstract: It is desirable to more stably and efficiently transmit light in a housing of a light source unit. A light source unit 13, which emits a laser beam L to a light guide part 40, includes: a unit housing 13b that includes a connector receiving portion 51b detachably connected to a connector portion 51a; a light source 30 that is installed in the unit housing 13b and outputs the laser beam L; a diffusion part 80 that diffuses the laser beam L output from the light source 30; a condensing lens system 81 that condenses the laser beam L diffused by the diffusion part 80; and an optical fiber 82a that transmits the laser beam L, which is condensed by the condensing lens system 81, to the connector receiving portion 51b. The connector receiving portion 51b optically connects the optical fiber 82a to the light guide part 40.

公开(公告)号：US09933357B1

公开(公告)日：2018-04-03

申请号：US15530584

申请日：2017-02-03

Applicant: J.A. WOOLLAM CO., INC.

Inventor： Ping He ,  Gregory K. Pribil ,  Martin M. Liphardt

IPC: G01N21/21

CPC classification number: G01N21/211 ,  G01J3/0286 ,  G01J4/04 ,  G01N2201/0227 ,  G01N2201/023 ,  G01N2201/084

Abstract: An ellipsometer system with polarization state generator and polarization state analyzer components inside at least one internal environment supporting encasement, said at least one encasement being present inside said environmental chamber.

公开(公告)号：US09778106B2

公开(公告)日：2017-10-03

申请号：US14794316

申请日：2015-07-08

Applicant: TECAN Trading AG

Inventor： Lutz Niggl ,  Andreas Erlbacher ,  Frank Münchow

IPC: G01J3/18 ,  G01J3/06 ,  G01J3/42 ,  G01N35/02 ,  G01N21/25 ,  G01N21/31 ,  G01J3/12

CPC classification number: G01J3/18 ,  G01J3/06 ,  G01J3/42 ,  G01J2003/1204 ,  G01J2003/1213 ,  G01J2003/1217 ,  G01N21/253 ,  G01N21/31 ,  G01N35/028 ,  G01N2021/3174 ,  G01N2201/084

Abstract: A spectrometer (1) comprises a light source (2), a monochromator (3) with at least one diffraction grating (4), a monochromator housing (5), an order sorting filter (7), a microplate receptacle (12) and a controller (6). The order sorting filter (7) of the spectrometer (1) comprises a substrate (23), a first optical thin film (24) and a second optical thin film (25), wherein, in a spatially partly overlapping and interference-free manner, the first optical thin film (24) is arranged on a first surface (26) and the second optical thin film (25) is arranged on a second surface (27) of the substrate (23). A spectrometer (1) equipped with a respective order sorting filter is used in a scanning method for detecting the absorption spectrum of samples examined in wells (14) of microplates (13).

公开(公告)号：US09383315B2

公开(公告)日：2016-07-05

申请号：US14351890

申请日：2012-10-10

Applicant: ABB Technology AG

Inventor： Luiz V. Cheim ,  Oleg Kouzmine ,  Robert Wueest

IPC: G01N21/59 ,  G01N21/33

CPC classification number: G01N21/59 ,  G01N21/33 ,  G01N2201/062 ,  G01N2201/084

Abstract: Sensor structure (16) is provided for online monitoring of levels of Furans in oil of a transformer tank. The sensor structure includes a UV light source (26), a filter (30) permitting only UV light of a certain wavelength range to pass, a window (32) permitting the filtered UV light to passes there-through and a UV light detector (36) to receive UV light that passes through the window. When the sensor structure is mounted to the transformer tank that is online so that the window is exposed to oil, and Furans in the oil are being monitored, the Furans will absorb UV light, creating a difference in UV light received by the light detector when compared to the UV light received by the light detector when the monitored oil has no Furans therein. The output signal of the light detector is substantially proportional to a total of Furans in the monitored oil.

Abstract translation: 传感器结构（16）用于在线监测变压器油油中呋喃水平。 传感器结构包括：紫外光源（26），仅允许一定波长范围的紫外光通过的滤光器（30），允许滤光的紫外光通过的窗口（32）以及UV光检测器 36）接收通过窗户的紫外线。 当传感器结构安装到在线变压器油箱，使窗户暴露于油中，并且油中的呋喃被监控时，呋喃将吸收紫外线，从而产生由光检测器接收的紫外光的差异 与被检测的油在其中没有呋喃时由光检测器接收的UV光相比。 光检测器的输出信号基本上与被监测油中呋喃总数成比例。

公开(公告)号：US20150377787A1

公开(公告)日：2015-12-31

申请号：US14766451

申请日：2014-02-11

Applicant: BRITISH COLUMBIA CANCER AGENCY BRANCH

Inventor： Haishan Zeng ,  Michael Short ,  Jianhua Zhao

IPC: G01N21/65 ,  G01N21/64

CPC classification number: G01N21/65 ,  A61B5/0071 ,  A61B5/0075 ,  A61B5/0084 ,  A61B5/0086 ,  A61B2560/0285 ,  G01J3/0213 ,  G01J3/0221 ,  G01J3/4406 ,  G01N21/64 ,  G01N21/645 ,  G01N2021/6417 ,  G01N2021/6484 ,  G01N2201/08 ,  G01N2201/0833 ,  G01N2201/084

Abstract: Examples of a spectroscopy probe for performing measurements of Raman spectra, reflectance spectra and fluorescence spectra are disclosed. The integrated spectral probe can comprise one or more light sources to provide a white light illumination to generate reflectance spectra, an excitation light to generate an UV/visible fluorescence spectra and a narrow band NIR excitation to induce Raman spectra. The multiple modalities of spectral measurements can be performed within 2 seconds or less. Examples of methods of operating the integrated spectroscopy probe disclosed.

Abstract translation: 公开了用于进行拉曼光谱，反射光谱和荧光光谱测量的光谱探测器的实例。 集成光谱探测器可以包括一个或多个光源以提供白光照明以产生反射光谱，产生UV /可见荧光光谱的激发光和窄带NIR激发以诱导拉曼光谱。 光谱测量的多种方式可以在2秒以内进行。 所公开的集成光谱探测器的操作方法的实例。