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    Pollution monitor with self-contained calibration and cell-block therefor
    22.
    发明授权
    Pollution monitor with self-contained calibration and cell-block therefor 失效
    污染监测器，具有独立校准和电池阻挡

    公开(公告)号：US3944834A

    公开(公告)日：1976-03-16

    申请号：US512338

    申请日：1974-10-04

    Applicant: Raymond L. Chuan ,  Parameswar Mahadevan ,  Daryl J. Bergquist

    Inventor： Raymond L. Chuan ,  Parameswar Mahadevan ,  Daryl J. Bergquist

    IPC: G01N21/27 ,  G01N21/64 ,  G01D18/00 ,  G01J1/42 ,  G01N21/38

    CPC classification number: G01N21/278 ,  G01N21/276 ,  G01N21/64 ,  G01N2021/6482 ,  G01N21/645 ,  G01N2201/128 ,  G01N2201/1286

    Abstract: The embodiment of the pollution monitor described in the specification uses the principle of ultraviolet-induced fluorescence to detect and measure gaseous pollution in air, smokestack exhaust and other fluids. Improved calibration or standardization is effected by the use of one or more calibration cells in which a non-gaseous material simulates the fluorescence of the gaseous species under investigation, by scattering the incident ultraviolet light into a spectral region similar to that of the fluorescence of the gaseous species. Examples of suitable materials have been found to be aluminum, gold, platinum and molybdenum, all of which scatter light in the appropriate spectral region at a level which stays substantially constant with time.In the preferred embodiment, the sample cell and the calibration cells are all formed in a single cell block by drilling holes into solid bar material which holes function as the individual cell cavities. The sample cell has ports for the flow of sample gas therethrough, while in each of the calibration cells, the metallic material is mounted to intercept and scatter the incident ultraviolet light energy. The cell block is constructed to rotate so that the several cells can be individually aligned in the light path between the ultraviolet source and fluorescence detector.

    Abstract translation: 本说明书中描述的污染监测器的实施例使用紫外线诱发荧光的原理来检测和测量空气，烟囱排气和其它流体中的气体污染。 通过使用一种或多种校准单元来实现改进的校准或标准化，其中非气态材料通过将入射的紫外光散射到类似于荧光的光谱区域中来模拟所研究的气态物质的荧光， 气态物种。 已经发现合适的材料的实例是铝，金，铂和钼，所有这些材料都以适当的光谱区域中的光散射在与时间基本恒定的水平上。

    FLOW CELL AND OPTICAL SYSTEM FOR ANALYZING FLUID
    23.
    发明申请
    FLOW CELL AND OPTICAL SYSTEM FOR ANALYZING FLUID 审中-公开

    公开(公告)号：US20180364152A1

    公开(公告)日：2018-12-20

    申请号：US16001966

    申请日：2018-06-07

    Applicant: CI SYSTEMS (ISRAEL) LTD.

    Inventor： Yoram Naor

    IPC: G01N21/01 ,  G01N21/59

    CPC classification number: G01N21/01 ,  G01N21/05 ,  G01N21/59 ,  G01N2021/0106 ,  G01N2201/068 ,  G01N2201/08 ,  G01N2201/128

    Abstract: A flow cell analyzes a fluid sample. A flow cell body contains a reference material and includes at least one hollow chamber to contain the fluid sample. Opposing surfaces of the flow cell body each have at least one transparent portion thereof. An optical path for light traversing through the flow cell body is defined in part by the transparent portions. A switching mechanism adjusts the amount of the reference material in the optical path to effect switching of the flow cell between a reference measurement state and a fluid sample measurement state. The reference measurement state corresponds to a first light intensity measurement and the fluid sample measurement state corresponds to a second light intensity measurement.

    GAS SENSORS
    25.
    发明申请
    GAS SENSORS 审中-公开
    气体传感器

    公开(公告)号：US20150123000A1

    公开(公告)日：2015-05-07

    申请号：US14362944

    申请日：2012-12-05

    Applicant: GasSecure AS

    Inventor： Håkon Sagberg ,  Britta Grennberg Fismen ,  Kari Anne Hestnes Bakke ,  Jon Tschudi ,  Ib-Rune Johansen ,  Knut Baeroe Sandven

    IPC: G01N21/3504 ,  G01R27/26 ,  G01N21/31

    CPC classification number: G01N21/3504 ,  G01N21/314 ,  G01N2021/317 ,  G01N2021/3513 ,  G01N2201/061 ,  G01N2201/0693 ,  G01N2201/0696 ,  G01N2201/128 ,  G01R27/2605

    Abstract: A gas sensor for measuring concentration of a predetermined gas comprises a light source arranged to emit pulses of light, a measurement volume, a detector arranged to receive light that has passed through the measurement volume, and an adaptable filter disposed between the light source and the detector. The gas sensor has a measurement state in which it passes at least one wavelength band which is absorbed by the gas and a reference state in which said wavelength band is attenuated relative to the measurement state. The adaptable filter is arranged to change between one of said measurement state and said reference state to the other at least once during each pulse.

    Abstract translation: 用于测量预定气体浓度的气体传感器包括布置成发射脉冲的光源，测量体积，被布置成接收已经通过测量体积的光的检测器，以及设置在光源和 探测器。 气体传感器具有测量状态，其中它通过被气体吸收的至少一个波长带和相对于测量状态使所述波长带衰减的参考状态。 适应滤波器被布置成在每个脉冲期间至少一次地在所述测量状态和所述参考状态中的一个之间改变另一个。

    Optical sensor for determining the concentrations of dyes and/or particles in liquid or gaseous media and method for operating the same
    27.
    发明申请
    Optical sensor for determining the concentrations of dyes and/or particles in liquid or gaseous media and method for operating the same 有权
    用于确定液体或气体介质中染料和/或颗粒浓度的光学传感器及其操作方法

    公开(公告)号：US20060152730A1

    公开(公告)日：2006-07-13

    申请号：US10538752

    申请日：2003-09-24

    Applicant: Reinhold Schneider

    Inventor： Reinhold Schneider

    IPC: G01N21/00

    CPC classification number: G01N21/8507 ,  G01N15/06 ,  G01N21/274 ,  G01N21/31 ,  G01N21/534 ,  G01N2201/0228 ,  G01N2201/062 ,  G01N2201/12753 ,  G01N2201/12761 ,  G01N2201/128

    Abstract: The invention relates to an optical sensor (1) for determining particle and/or dye concentrations in liquid or gaseous media and to a method for operating the same. The optical sensor (1) comprises at least one measuring head. The measuring head consists of an emitter unit (2) with a semiconductor emitting element (9), which emits visible emission light beams (8), and with a receiver unit (3) with a semiconductor receiving element (10). The portion of the emission light beams (8), which pass through an absorption section containing liquid or gaseous medium, is guided onto the receiving element (10). An evaluating unit (6) is coupled to the measuring head via electric leads (4, 4′), and the received signals, which are present at the output of the semiconductor receiving element (10), are evaluated inside said evaluating unit in order to determine the particle or die concentration.

    Abstract translation: 本发明涉及一种用于确定液体或气体介质中的颗粒和/或染料浓度的光学传感器（1）及其操作方法。 光学传感器（1）包括至少一个测量头。 测量头由具有发射可见光发射光束（8）的半导体发射元件（9）的发射器单元（2）和具有半导体接收元件（10）的接收器单元（3）组成。 通过包含液体或气体介质的吸收部分的发射光束（8）的部分被引导到接收元件（10）上。 评估单元（6）经由电引线（4,4'）耦合到测量头，并且存在于半导体接收元件（10）的输出处的接收信号按照顺序在所述评估单元内进行评估 以确定颗粒或模具浓度。

    Reference reading in an analyzer
    29.
    发明授权
    Reference reading in an analyzer 失效
    分析仪中的参考读数

    公开(公告)号：US5067093A

    公开(公告)日：1991-11-19

    申请号：US469887

    申请日：1990-01-24

    Applicant: Catherine S. Przybylowicz ,  Edwin W. Brill, Jr. ,  Luigi A. Carrozziere

    Inventor： Catherine S. Przybylowicz ,  Edwin W. Brill, Jr. ,  Luigi A. Carrozziere

    IPC: G01N21/27 ,  G01N21/47 ,  G01N21/86

    CPC classification number: G01N21/8483 ,  G01N2021/478 ,  G01N2201/12753 ,  G01N2201/128

    Abstract: A method and apparatus are disclosed for reading a test element and a reference element in an incubator to insure that a) they are both read at the same wavelength and b) the reading at this wavelength of the reference element used to compare the test element reading, is the closest in point of time to the reading taken of the test element. In some cases, this requires the comparison with a reference element that is read after the reading of the test element.

    Abstract translation: 公开了一种用于在培养箱中读取测试元件和参考元件以确保a）它们都以相同波长读取的方法和装置，以及b）用于比较测试元件读数的参考元件的该波长处的读数 是测试元素读取时间最接近的时间。 在某些情况下，这需要与读取测试元素后读取的参考元素进行比较。

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