公开(公告)号：US09110006B1

公开(公告)日：2015-08-18

申请号：US14309495

申请日：2014-06-19

Applicant: Southwest Sciences Incorporated

Inventor： David Christian Hovde ,  Anthony Gomez

IPC: G01J3/10 ,  G01N21/25

CPC classification number: G01N21/255 ,  G01J3/021 ,  G01J3/10 ,  G01J3/42 ,  G01J3/433 ,  G01N21/39 ,  G01N21/552 ,  G01N2201/065

Abstract: A spectrometer comprising an optical cavity, a light source capable of producing light at one or more wavelengths transmitted by the cavity and with the light directed at the cavity, a detector and optics positioned to collect light transmitted by the cavity, feedback electronics causing oscillation of amplitude of the optical signal on the detector at a frequency that depends on cavity losses, and a sensor measuring the oscillation frequency to determine the cavity losses.

Abstract translation: 一种光谱仪，包括光腔，能够产生由空腔传输的一个或多个波长的光以及指向空腔的光的光源，定位成收集由空腔传输的光的检测器和光学器件， 在取决于腔体损耗的频率上的检测器上的光学信号的幅度，以及测量振荡频率以确定腔体损耗的传感器。

公开(公告)号：US20150092194A1

公开(公告)日：2015-04-02

申请号：US14488608

申请日：2014-09-17

Applicant: SICK AG

Inventor： Torsten WALDMANN ,  Rolf DISCH

IPC: G01J3/02 ,  G01N21/35 ,  G01N33/00 ,  G01N21/59

CPC classification number: G01J3/0205 ,  G01J3/0235 ,  G01J3/12 ,  G01J3/26 ,  G01J3/433 ,  G01J2003/1282 ,  G01N21/3504 ,  G01N33/0062

Abstract: A spectrometer (10) for gas analysis is provided, the spectrometer comprising a measurement cell (28) having a gas to be investigated, a light source (12) for the transmission of light (14) into the measurement cell (28) on a light path (16), a filter arrangement (22) having a Fabry-Perot filter (24a-c) in the light path (16), in order to set frequency properties of the light (14) by means of a transmission spectrum of the filter arrangement (22), as well as a detector (36, 38) which measures the absorption of the light (14) by the gas (30) in the measurement cell (28). In this connection the filter arrangement (22) has a plurality of Fabry-Perot filters (24a-c) arranged behind one another in the light path (14) and a control unit (44) for the filter arrangement (22) is provided in order to change the transmission spectrum by setting at least one of the Fabry-Perot filters (24a-c).

Abstract translation: 提供了用于气体分析的光谱仪（10），该光谱仪包括具有待研究气体的测量单元（28），用于将光（14）传输到测量单元（28）中的光源（12） 光路（16），在光路（16）中具有法布里 - 珀罗滤光器（24a-c）的滤光器装置（22），以通过透光光谱（14）的透射光谱来设定光（14）的频率特性 过滤器装置（22）以及测量单元（28）中的气体（30）吸收光（14）的检测器（36,38）。 在这种连接中，过滤器装置（22）具有在光路（14）中彼此相邻布置的多个法布里 - 珀罗过滤器（24a-c），并且用于过滤器装置（22）的控制单元（44）设置在 通过设置至少一个法布里 - 珀罗滤波器（24a-c）来改变传输频谱。

公开(公告)号：US20150047712A1

公开(公告)日：2015-02-19

申请号：US14530982

申请日：2014-11-03

Applicant: JP3 Measurement, LLC

Inventor： Joseph Paul Little, III ,  Matt Thomas

IPC: G05D11/13 ,  G01N33/28 ,  G01N21/35 ,  F17D3/01 ,  G01N21/85

CPC classification number: G01N21/3504 ,  F17D3/01 ,  G01J3/02 ,  G01J3/0294 ,  G01J3/108 ,  G01J3/28 ,  G01J3/433 ,  G01N21/35 ,  G01N21/359 ,  G01N21/85 ,  G01N33/28 ,  G01N2201/06113 ,  G05D11/132 ,  Y10T137/0335 ,  Y10T137/2506

Abstract: Methods and systems for real time, in situ monitoring and blending of hydrocarbon fluids from multiple transmission lines feeding into a downstream line or vessel are described. The method and system include the scanning of the NIR range on fluids within each of at least two transmission lines. The spectroscopic optical data from the two scans is used to determine flow rates of the fluids from each transmission line to, for example, achieve a desired energy content, physical properties, or speciation in the blended fluid.

Abstract translation: 描述了用于实时，原位监测和混合来自多条输送管线的烃流体进入下游管线或容器的方法和系统。 该方法和系统包括在至少两条传输线路内的流体中扫描NIR范围。 来自两次扫描的光谱光学数据用于确定来自每条传输线的流体的流速，例如达到所需的能量含量，物理性质或混合流体中的形态。

公开(公告)号：US08941828B2

公开(公告)日：2015-01-27

申请号：US13402207

申请日：2012-02-22

Applicant: Hans-Peter Loock ,  Helen Waechter

Inventor： Hans-Peter Loock ,  Helen Waechter

IPC: G01J3/42 ,  G01J3/45 ,  G01J3/427 ,  G01J3/433 ,  G01N21/77

CPC classification number: G01J3/42 ,  G01J3/427 ,  G01J3/433 ,  G01N21/7746 ,  G01N2021/7776 ,  G01N2021/7779 ,  G01N2021/7783

Abstract: Described are methods for multi-wavelength cavity ring-down spectroscopy; comprising simultaneously and continuously irradiating an optical cavity with light at two or more different wavelengths, each light being intensity-modulated at a different modulation frequency, detecting the light of two or more wavelengths after the light has traveled through the optical cavity; measuring an optical loss of each detected light; and determining a characteristic of the optical cavity from the optical loss of each detected light. Also described are apparatus and systems for multi-wavelength cavity ring-down spectroscopy.

Abstract translation: 描述了多波长腔体衰减光谱法的方法; 包括以两个或更多个不同波长的光同时且持续地照射光腔，每个光以不同的调制频率进行强度调制，在光已经穿过光腔之后检测两个或更多个波长的光; 测量每个检测到的光的光学损耗; 以及从每个检测到的光的光损失确定光腔的特性。 还描述了用于多波长腔体衰减光谱的装置和系统。

公开(公告)号：US08922767B2

公开(公告)日：2014-12-30

申请号：US12303526

申请日：2007-06-08

Applicant: Kishan Dholakia ,  Phillip Ronald Thomas Jess ,  Michael Mazilu

Inventor： Kishan Dholakia ,  Phillip Ronald Thomas Jess ,  Michael Mazilu

IPC: G01J3/44 ,  G01N21/65 ,  G01J3/433 ,  G01J3/28 ,  B01L3/00

CPC classification number: G01J3/0297 ,  B01L3/5027 ,  G01J3/28 ,  G01J3/433 ,  G01J3/44 ,  G01J3/4412 ,  G01N21/65 ,  G01N2021/651 ,  G01N2021/656

Abstract: A micro-fluidic system comprising means for optically trapping a particle and a Raman excitation source for causing Raman scatter from the particle while it is in the optical trap.

Abstract translation: 一种微流体系统，包括用于光学捕获颗粒和拉曼激发源的装置，用于在所述光阱中引起来自所述颗粒的拉曼散射。

公开(公告)号：US20140375995A1

公开(公告)日：2014-12-25

申请号：US14307995

申请日：2014-06-18

Applicant: Rosemount Analytical Inc.

Inventor： Pawel Kluczynski

IPC: G01N21/27

CPC classification number: G01N21/27 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/42 ,  G01J3/433 ,  G01J3/4338 ,  G01J2003/423 ,  G01N21/39

Abstract: A gas absorption spectroscopy system and method are provided. A sealed chamber is provided with a reference gas having a known moisture concentration. An illumination source is disposed in the sealed chamber and is configured to generate an illumination beam. A measurement cell is coupled to the sealed chamber and is configured for exposure to a gas sample such that illumination travelling through the measurement cell passes through the gas sample. A process window is disposed between the sealed chamber and the measurement cell. The process window is configured to receive the illumination beam from the illumination source and reflect a first portion of illumination while allowing a second portion of illumination to pass into the measurement cell. A reference detector is disposed to receive the first portion of illumination and provide a reference detector signal. A measurement detector is disposed to receive the second portion of illumination after the second portion of illumination has passed through the measurement cell and provide a measurement detector signal. A controller is coupled to the reference detector and the measurement detector and is configured to provide a compensated moisture output based on the reference detector signal and the measurement detector signal.

Abstract translation: 提供了一种气体吸收光谱系统和方法。 密封室设置有具有已知水分浓度的参考气体。 照明源设置在密封室中并且被配置为产生照明光束。 测量单元耦合到密封室并且被配置为暴露于气体样本，使得穿过测量单元的照明通过气体样本。 处理窗口设置在密封室和测量单元之间。 处理窗口被配置为从照明源接收照明光束并且反射照明的第一部分，同时允许第二部分照射进入测量单元。 设置参考检测器以接收照明的第一部分并提供参考检测器信号。 设置测量检测器以在第二部分照射已经通过测量单元之后接收第二部分照明并提供测量检测器信号。 控制器耦合到参考检测器和测量检测器，并且被配置为基于参考检测器信号和测量检测器信号来提供经补偿的湿度输出。

公开(公告)号：US20140336957A1

公开(公告)日：2014-11-13

申请号：US14367420

申请日：2012-12-19

Applicant: The Board of Trustees of the Leland Stanford Junior University

Inventor： Ronald K. Hanson ,  Jay B. Jeffries ,  Kai Sun ,  Ritobrata Sur ,  Xing Chao

IPC: G01N21/39 ,  G01N33/00 ,  G01J3/433

CPC classification number: G01N21/39 ,  G01J3/433 ,  G01J3/4338 ,  G01N33/0062 ,  G01N2201/12

Abstract: A method of calibration-free scanned-wavelength modulation spectroscopy (WMS) absorption sensing is provided by obtaining absorption lineshape measurements of a gas sample on a sensor using 1/-normalized WMS-2/j where an injection current to an injection current-tunable diode laser (TDL) is modulated at a frequency ̂ where a wavelength modulation and an intensity modulation of the TDL are simultaneously generated, extracting using a numerical lock-in program and a low-pass filter appropriate band-width WMS-

Abstract translation: 通过使用1 /正规化WMS-2 / j获得传感器上的气体样品的吸收线尺寸测量来提供无校准扫描波长调制光谱（WMS）吸收感测的方法，其中注入电流可调 二极管激光器（TDL）在同时产生TDL的波长调制和强度调制的频率下被调制，使用数字锁定程序和低通滤波器适当的带宽WMS-<< /（ n = 1,2，...）信号，其中WMS-<< /信号是f的谐波，根据WMS-<< /信号的比率确定气体样本的物理性质， 使用扫描波长WMS的吸收背景，以及使用至少两个谐波来确定非吸收损耗，其中在碰撞加宽已经混合了过渡线宽的环境中，从非吸收基线测量的需要中去除了测量结果，其中 无需了解过渡线宽的无校准WMS测量功能。

公开(公告)号：US20140300806A1

公开(公告)日：2014-10-09

申请号：US13548801

申请日：2012-07-13

Applicant: David B. Pollock ,  Patrick J. Reardon

Inventor： David B. Pollock ,  Patrick J. Reardon

IPC: H04N5/225

CPC classification number: H04N5/2254 ,  G01J3/0208 ,  G01J3/0262 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/433 ,  G01J3/447 ,  G02B26/0891 ,  G02B27/0018 ,  H04N5/23229 ,  H04N5/349

Abstract: A camera concurrently produces an orthographic map and map spectral content. illumination from an image passes through a phase modulator and the resulting rotating photo-flux phase is converted to an electrical signal by multiple adjacent sensors of detectors of array of detectors. The amount of unwanted illumination reaching the sensors is reduced by a set of baffles that shield and protect the transducers from unwanted out-of-field light and other light sources.

Abstract translation: 相机同时产生正交图并映射光谱内容。 来自图像的照明通过相位调制器，并且所得到的旋转光通量相位被检测器阵列的检测器的多个相邻传感器转换成电信号。 通过一组挡板来减少到达传感器的不需要的照明量，这些挡板可以保护和保护传感器免受不必要的场外光线和其他光源的影响。

公开(公告)号：US08823802B2

公开(公告)日：2014-09-02

申请号：US12898024

申请日：2010-10-05

Applicant: Michael Myrick ,  Heather Brooke ,  Megan Baranowski ,  Jessica McCutcheon ,  Stephen Morgan

Inventor： Michael Myrick ,  Heather Brooke ,  Megan Baranowski ,  Jessica McCutcheon ,  Stephen Morgan

IPC: H04N5/33 ,  G01J3/433 ,  G01N21/88 ,  G01N21/35

CPC classification number: G01J3/433 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/3577 ,  G01N21/88 ,  H04N5/33

Abstract: A system and method for analyzing a sample is disclosed. At least a portion of the sample is illuminated with modulated light from a light source, such as an infrared light source. Infrared energy from the sample is monitored with an infrared detector as the sample is being illuminated with the modulated light. The AC response of the infrared energy is analyzed to determine at least one of emission data or reflection data about the sample. The emission data or the reflection data can be used to enhance chemical contrast between varying substances on the sample.

Abstract translation: 公开了一种用于分析样品的系统和方法。 样品的至少一部分用来自诸如红外光源的光源的调制光照射。 当样品被调制的光照射时，用红外检测器监测来自样品的红外能量。 分析红外能量的AC响应以确定关于样品的发射数据或反射数据中的至少一个。 发射数据或反射数据可用于增强样品上不同物质之间的化学对比度。

公开(公告)号：US08711360B2

公开(公告)日：2014-04-29

申请号：US13948753

申请日：2013-07-23

Applicant: Seiko Epson Corporation

Inventor： Tatsuaki Funamoto

IPC: G01B9/02 ,  G01J3/42

CPC classification number: G01J3/027 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G01J3/32 ,  G01J3/36 ,  G01J3/433 ,  G01J2003/1213 ,  G01N21/55 ,  G01N21/59

Abstract: A spectral measurement device includes: an optical band-pass filter section that has first to n-th wavelengths (n is an integer of 2 or more) having a predetermined wavelength width as a spectral band thereof; a correction operation section that corrects a reception signal based on an output optical signal from the optical band-pass filter section; and a signal processing section that executes predetermined signal processing based on the reception signal corrected by the correction operation section that corrects the reception signal based on the change in the spectral distribution of the reception signal.

Abstract translation: 光谱测量装置包括：具有预定波长宽度的第一至第n波长（n为2或更大的整数）作为其光谱带的光学带通滤波器部分; 校正操作部，其根据来自所述光学带通滤波器部的输出光信号校正接收信号; 以及信号处理部，其基于由校正操作部校正的接收信号，基于接收信号的频谱分布的变化来校正接收信号，执行预定的信号处理。