公开(公告)号：US08527212B2

公开(公告)日：2013-09-03

申请号：US13027259

申请日：2011-02-14

Applicant: Michael Kon Yew Hughes ,  Sebastien Tixier

Inventor： Michael Kon Yew Hughes ,  Sebastien Tixier

IPC: G06F19/00 ,  G01N21/35

CPC classification number: G01N21/3563 ,  G01N21/3559 ,  G01N21/359 ,  G01N21/86 ,  G01N21/8901 ,  G01N33/346 ,  G01N33/442 ,  G01N2021/8663 ,  G01N2021/869 ,  G01N2021/8917 ,  G01N2201/0697 ,  G01N2201/128 ,  G01N2201/13

Abstract: Radiation scattering is one of the main contributors to the uncertainty of near infrared (NIR) measurements. Enhanced absorption-measurement accuracy for NIR sensors is achieved by using a combination of NIR spectroscopy and time-of-flight techniques to select photons that are the result of a given mean free path within a moving sample target. By measuring absorption as a function of path length or by windowing signals that are attributable to excessive scattering of NIR radiation within the sample, this technique affords the calculation of more accurate and more universal calibrations. The NIR sensor employs short or ultra-short laser pulses to create NIR that is directed to the moving sample and emerging radiation is detected over time. Windowing effectively truncates non-contributing measurements.

Abstract translation: 辐射散射是近红外（NIR）测量不确定度的主要原因之一。 通过使用NIR光谱和飞行时间技术的组合来选择作为移动样本目标中给定平均自由程的结果的光子，实现NIR传感器增强的吸收测量精度。 通过测量作为路径长度的函数的吸收，或者通过对由于样品内的NIR辐射的过度散射而引起的信号的加窗信号，该技术提供了更准确和更通用的校准的计算。 NIR传感器使用短或超短激光脉冲来产生针对移动样品的NIR，并且随着时间的推移检测出新的辐射。 窗口化有效地截断了无贡献的测量。

公开(公告)号：US20110305598A1

公开(公告)日：2011-12-15

申请号：US13213744

申请日：2011-08-19

Applicant: Norman H. Fontaine ,  Prantik Mazumder ,  Mark A. Quesada ,  Eric J. Mozdy ,  Po Ki Yuen

Inventor： Norman H. Fontaine ,  Prantik Mazumder ,  Mark A. Quesada ,  Eric J. Mozdy ,  Po Ki Yuen

IPC: G01N33/48

CPC classification number: G01N21/7743 ,  G01N21/05 ,  G01N21/276 ,  G01N21/553 ,  G01N2021/0346 ,  G01N2021/058 ,  G01N2201/108 ,  G01N2201/1211 ,  G01N2201/1217 ,  G01N2201/127 ,  G01N2201/12723 ,  G01N2201/128 ,  Y10T436/117497 ,  Y10T436/2575

Abstract: A microfluidic device is described herein which comprises a micron-sized deep flow channel and a sensor. The micron-sized deep flow channel is configured such that a sample solution and a reference solution flow side-by-side to one another in a single sensing region of the sensor. The single sensing region is divided into a detection region and a reference region which are contiguous to one another and which are respectively interfaced with the sample solution and the reference solution that flow side-by-side to one another in a longitudinal direction within the micron-sized deep flow channel.

Abstract translation: 本文描述了一种微流体装置，其包括微米级的深流动通道和传感器。 微米尺寸深流通道被配置为使得样品溶液和参比溶液在传感器的单个感测区域中彼此并排流动。 单个感测区域被分成彼此邻接的检测区域和参考区域，它们分别与样品溶液和在微米内沿纵向彼此并排流动的参比溶液接合。 深流道。

公开(公告)号：US20100141952A1

公开(公告)日：2010-06-10

申请号：US12447591

申请日：2007-11-01

Applicant: Michael L. Myrick ,  Robert P. Freese ,  David L. Perkins ,  Terrell Teague ,  William Soltmann

Inventor： Michael L. Myrick ,  Robert P. Freese ,  David L. Perkins ,  Terrell Teague ,  William Soltmann

IPC: G01J3/45

CPC classification number: G01J3/28 ,  G01J3/02 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/0232 ,  G01J3/0235 ,  G01J3/0243 ,  G01J3/08 ,  G01J3/42 ,  G01J2003/1213 ,  G01N2201/128 ,  G01N2201/1293

Abstract: The present subject matter relates to methods of high-speed analysis of product samples. Light is directed to a portion of a product under analysis and reflected from or transmitted through the product toward an optical detector. Signals for the detector are compared with reference signals based on a portion of the illuminating light passing through a reference element to determine characteristics of the product under analysis. The products under analysis may be stationary, moved by an inspection point by conveyor or other means, or may be contained within a container, the container including a window portion through which the product illuminating light may pass.

Abstract translation: 本主题涉及产品样品的高速分析方法。 光被引导到被分析的产品的一部分，从产品反射或透过产品朝向光学检测器。 基于通过参考元件的照明光的一部分，将检测器的信号与参考信号进行比较，以确定被分析产品的特性。 被分析的产品可以是固定的，由检查点通过输送机或其他方式移动，或者可以容纳在容器内，该容器包括产品照明光通过的窗口部分。

公开(公告)号：US20090213371A1

公开(公告)日：2009-08-27

申请号：US12096908

申请日：2006-12-13

Applicant: Ian Goodyer ,  Tracy Ann Nutall ,  Rudi Labarbe ,  Nicholas Salvatore Arini ,  Andrew Seddon ,  Nick Stock ,  Gary Ross ,  Ralf Patz

Inventor： Ian Goodyer ,  Tracy Ann Nutall ,  Rudi Labarbe ,  Nicholas Salvatore Arini ,  Andrew Seddon ,  Nick Stock ,  Gary Ross ,  Ralf Patz

IPC: G01J3/28

CPC classification number: G01J3/02 ,  G01J3/0202 ,  G01J3/0218 ,  G01J3/0237 ,  G01J3/024 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/10 ,  G01J3/28 ,  G01N21/274 ,  G01N21/3563 ,  G01N21/359 ,  G01N2201/12707 ,  G01N2201/128 ,  G01N2201/129

Abstract: A spectrophotometer has a first photodetector (24) and a second photodetector (25) which is displaced spatially from the first photodetector in the direction of increasing wavelength in the spectrum. At any given time the second photodetector receives light at a wavelength which is substantially greater than that being received simultaneously by the first photodetector at that time. The first photodetector has first range of wavelengths over which it is operable and a first upper operating limit, and the second photodetector has a second range of wavelengths over which it is operable and a second upper operating limit, the second range overlapping the first range and the second upper operating limit being greater than the first upper operating limit. Thus the range of operation is extended, and data in two different ranges is processed simultaneously. The spectrophotometer comprises a housing (1) containing a light source (11), a monochromator (15, 16, 18) and the photodetectors, there being a fibre optic connected to a probe (2) for transmitting light from the light source to a sample to be analysed and receiving light from the sample. Optical components are mounted to a chassis (26) of the housing rigidly, the chassis being connected to the housing by shock absorbing mounts (28, 29). The light source is mounted to the housing by means of an adjuster (24) providing for adjustment laterally with respect to the optical axis of the light source.

Abstract translation: 分光光度计具有第一光电检测器（24）和第二光电检测器（25），该第二光电检测器（25）在光谱中沿着波长增加的方向从第一光电检测器空间位移。 在任何给定时间，第二光电探测器接收的光的波长远远大于在此时由第一光电检测器同时接收的波长。 第一光电探测器具有可操作的第一波长范围和第一上限工作极限，并且第二光电探测器具有可操作的第二波长范围和第二上限工作极限，第二范围与第一范围重叠， 第二上限运行极限大于第一上限运行极限。 因此，扩展了操作范围，同时处理两个不同范围的数据。 分光光度计包括容纳光源（11）的壳体（1），单色仪（15,16,18）和光电检测器，光纤连接到探头（2），用于将光从光源传输到 待分析样品并从样品中接收光。 光学元件刚性地安装到壳体的底盘（26）上，底盘通过减震座（28,29）连接到壳体。 光源通过调节器（24）安装到壳体，调节器（24）相对于光源的光轴横向调整。

公开(公告)号：US07359055B2

公开(公告)日：2008-04-15

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。

公开(公告)号：US20030147081A1

公开(公告)日：2003-08-07

申请号：US10333990

申请日：2003-01-27

Inventor： Naoki Inamoto ,  Yoshimi Sawamura ,  Shinji Fujimura ,  Kunikazu Taguchi

IPC: G01N021/55

CPC classification number: G01N21/55 ,  G01N21/276 ,  G01N21/4785 ,  G01N2021/4745 ,  G01N2201/128

Abstract: In an automatic optical measurement method according to the invention, with a movable reflection plate 6 moved to place under an optical axis, light projected from a light projecting portion 3a is received by a light receiving portion 3b via the movable reflection plate 6, a stationary reflection plate 11 and the movable reflection plate 6, whereas with the movable reflection plate 6 moved away from the optical axis and a reference 8 set on a sample stage 10, light projected from the light projecting portion 3a is received by the light receiving portion 3b via the reference 8 whereby a ratio between the intensities of the received lights is determined. During a sample measurement, light projected from the light projecting portion 3a with the movable reflection plate 6 moved to place under the optical axis is received by the light receiving portion 3b via the movable reflection plate 6, stationary reflection plate 11 and movable reflection plate 6 so that the intensity of light thus received and the above ratio are used for estimating an intensity of light to be measured with the reference, the estimated intensity of light being used for correcting an intensity of light received via a sample.

Abstract translation: 在根据本发明的自动光学测量方法中，通过可移动的反射板6移动以在光轴下方放置，从光投射部分3a突出的光通过可动反射板6被光接收部分3b接收，静止 反射板11和可动反射板6，而当可移动反射板6远离光轴移动并且设置在样品台10上的基准8时，由光接收部分3b接收从光投射部分3a突出的光 通过参考8，由此确定接收到的光的强度之间的比率。 在采样测量期间，由可移动反射板6移动到光轴下方的从投光部分3a射出的光由光接收部分3b通过可移动反射板6，静止反射板11和活动反射板6 使得如此接收的光的强度和上述比率用于估计用于参考的待测光的强度，用于校正经由样本接收的光的强度的光的估计强度。

公开(公告)号：US5063275A

公开(公告)日：1991-11-05

申请号：US541637

申请日：1990-06-21

Applicant: Elieser Z. Rosenfeld ,  Lewis Coleman

Inventor： Elieser Z. Rosenfeld ,  Lewis Coleman

IPC: G01N21/35 ,  G01N21/3504

CPC classification number: G01N21/3504 ,  G01N2201/128

Abstract: There is provided a gas analyzer, including a radiation source, an analytical space through which passes the gas to be analyzed, at least one detector for detecting the intensity of radiation passing through the space, apparatus for facilitating the alternating introduction, into the space, of the gas to be analyzed and a reference gas having a concentration located at least in the upper half of the range of concentrations to be measured by the gas analyzer. The analyzer further includes processing apparatus, having a memory device, to process signals originating in the detector, the memory device adapted to store in a first mode of operation, signals representing instantaneous intensity values of the detected source and, in a second mode of operation, to store signals representing intensity values obtained when the analytical space is filled with the reference gas, a circuit for comparing the instantaneous values with the reference value, and an indicator device for indicating concentration. A method for analyzing gases to establish their concentration is also provided.

公开(公告)号：US4944594A

公开(公告)日：1990-07-31

申请号：US187204

申请日：1988-04-28

Applicant: Gary N. Burk

Inventor： Gary N. Burk

IPC: G01N21/47 ,  G01N21/86

CPC classification number: G01N21/4738 ,  G01N2021/4773 ,  G01N2021/8663 ,  G01N2201/067 ,  G01N2201/0833 ,  G01N2201/128

Abstract: Apparatus (10) and methods for measuring dark and bright reflectances of translucent sheet material (2) are disclosed. The apparatus (10) comprises first optical means for illuminating one side of the sheet material (2) with a source of electromagnetic radiation. A portion of the radiation is transmitted through the sheet material (2) and another portion of the radiation is reflected by the sheet material. The apparatus (10) also comprises optical gating means (30) that is positioned adjacent the other side of the sheet material (2) in a fixed position relative to the first optical means. The optical gating means (30) absorbs substantially all of the transmitted portion of the radiation when switched to a dark state and reflects substantially all of the transmitted portion of the radiation back through the sheet material (2) when switched to a bright state. The apparatus (10) further comprises second optical means for collecting the reflected portion of the radiation and the portion of the transmitted portion of the radiation reflected by the optical gating means (30) and retransmitted through the sheet material (2) to provide a total reflectance. The total reflectance has a dark reflectance intensity when the optical gating means (30) is in the dark state and a bright reflectance intensity when the optical gating means is in the bright state. The apparatus also comprises sensing means (60), responsive to radiation collected by the second optical means, for providing a dark signal having a magnitude corresponding to the dark reflectance intensity and a bright signal having a magnitude corresponding the bright reflectance intensity. The dark and bright signals can be incorporated in known formulae to compute values for quality attributes of the sheet material (2) including opacity and color.

公开(公告)号：US4754142A

公开(公告)日：1988-06-28

申请号：US930650

申请日：1986-11-13

Applicant: Alan J. Cooper ,  Ronald G. Coombes

Inventor： Alan J. Cooper ,  Ronald G. Coombes

IPC: G01N21/35 ,  G01J1/00

CPC classification number: G01N21/3504 ,  G01N2201/128

Abstract: A gas detector (1) to detect a predetermined gas of interest within an air sample, the detector (1) comprising a sampling tube (12), an infra-red radiation source (13) located at one end of the tube (12), an infrared sensing means (17) located at the other end of the tube, an optical filter (16) appropriate to the gas of interest located in the infra-red radiation beam, either adjacent the infra-red source (13), or adjacent the infra-red sensing means (17), an air sample inlet located at or towards one end of the tube (12) and an air sample outlet located at or towards the other end of the tube (12), with the detector (1) capable of emitting an electrical signal or a changed electrical signal in accordance with whether the gas of interest is or is not detected, a pure, reference gas source (26-30) and valve means (31, 32) to control admission of the reference gas to the sampling tube (12) at prescribed intervals of time.

Abstract translation: 一种气体检测器（1），用于检测空气样本中感兴趣的预定气体，所述检测器（1）包括采样管（12），位于所述管（12）的一端处的红外辐射源（13） ，位于所述管的另一端的红外感测装置（17），适合于位于所述红外线辐射束内的感兴趣的气体，邻近所述红外光源（13）的光学滤光器（16），或 邻近所述红外线感测装置（17），位于所述管（12）的一端或朝向所述管（12）的一端的空气样品入口和位于所述管（12）的另一端处或朝向所述管（12）的另一端的空气样品出口， 1）能够根据感兴趣的气体是否被检测发出电信号或改变的电信号，纯的参考气体源（26-30）和阀装置（31,32），以控制入口 以规定的时间间隔将采样管（12）的参考气体。

公开(公告)号：US4672216A

公开(公告)日：1987-06-09

申请号：US789989

申请日：1985-10-22

Applicant: Gilles D. Pitt ,  Brian J. Scott ,  Michael V. Verrells ,  Nicholas K. Hancock ,  Phillip Extance

Inventor： Gilles D. Pitt ,  Brian J. Scott ,  Michael V. Verrells ,  Nicholas K. Hancock ,  Phillip Extance

IPC: G01N21/51 ,  G01N21/03 ,  G01N21/15 ,  G01N21/53 ,  G01N15/06 ,  G01N21/00

CPC classification number: G01N21/53 ,  G01N21/0332 ,  G01N21/15 ,  G01N21/532 ,  G01N2201/062 ,  G01N2201/126 ,  G01N2201/128

Abstract: A power station boiler condensate water monitor employs a light-scatter cell for the detection of oil and/or particulates in the water. In order to determine background scatter levels, provision is made to alternatively pass clean water through the cell (FLUSH). The offset voltages obtained from the detector outputs when clean water is employed are compensated for differences in temperature between the boiler condensate water and the clean water before substraction from the detector outputs when boiler condensate water is employed. The monitor is capable of detecting oil levels of less than 2 parts per million.

Abstract translation: 电站锅炉冷凝水监测器采用光散射电池来检测水中的油和/或微粒。 为了确定背景散射水平，提供交替地通过干净的水通过电池（FLUSH）。 当采用清洁水时，从检测器输出获得的偏移电压，在采用锅炉冷凝水时，从检测器输出减去之前补偿锅炉冷凝水和清洁水之间的温度差。 显示器能够检测小于2百万分之几的油位。