公开(公告)号：US20060285114A1

公开(公告)日：2006-12-21

申请号：US11157042

申请日：2005-06-17

Applicant: Jiang-Rong Cao ,  Mamoru Miyawaki

Inventor： Jiang-Rong Cao ,  Mamoru Miyawaki

IPC: G01N21/00

CPC classification number: G01N21/3504 ,  B82Y20/00 ,  G01N21/359 ,  G01N2021/3129 ,  G02B6/1225

Abstract: In detecting presence of a gas, light passes through a photonic crystal cavity configured to sample a gas and receive light. The light has a wavelength that at least partially falls within a specific absorption wavelength of the gas. At least one parameter of a band gap spectrum is generated from at least a portion of the light passing through the photonic crystal cavity. In generating the at least one parameter, a numerical simulation is performed within a frequency range of the photonic crystal cavity to generate a set of spectral response data points, rational function interpolation is performed on the set of spectral response data points to generate a spectral response, and at least one parameter is determined from the spectral response. The at least one parameter is compared with stored parameters of band gap spectrums, wherein a match indicates a presence and/or concentration of the gas.

Abstract translation: 在检测到气体的存在时，光通过配置成采样气体并接收光的光子晶体腔。 光具有至少部分落在气体的特定吸收波长内的波长。 从通过光子晶体腔的光的至少一部分产生带隙光谱的至少一个参数。 在产生至少一个参数时，在光子晶体腔的频率范围内进行数值模拟以产生一组光谱响应数据点，对该组光谱响应数据点执行有理函数插值以产生光谱响应 ，并且从光谱响应确定至少一个参数。 将至少一个参数与存储的带隙谱的参数进行比较，其中匹配指示气体的存在和/或浓度。

公开(公告)号：US07072770B1

公开(公告)日：2006-07-04

申请号：US10812233

申请日：2004-03-29

Applicant: Robert Schweitzer ,  Willem Windig ,  Patrick J. Treado

Inventor： Robert Schweitzer ,  Willem Windig ,  Patrick J. Treado

IPC: G01N31/00

CPC classification number: G01J3/28 ,  G01N21/3577 ,  G01N21/359 ,  G01N33/02 ,  G01N2021/3129 ,  G01N2201/1293 ,  G06F19/703

Abstract: The present invention is directed generally toward the field of spectral analysis and, more particularly, toward an improved method of identifying unknown components of a mixture from a set of spectra collected from the mixture using a spectral library including potential candidates. For example, the present method is directed to identifying components of a mixture by the steps which comprise obtaining a set of spectral data for the mixture that defines a mixture data space; ranking a plurality of library spectra of known elements according to their angle of projection into the mixture data space; calculating a corrected correlation coefficient for each combination of the top y ranked library spectra; and selecting the combination having the highest corrected correlation coefficient, wherein the known elements of the selected combination are identified as the components of the mixture.

Abstract translation: 本发明一般涉及光谱分析领域，更具体地说，涉及使用包括潜在候选物的光谱库从混合物中收集的一组光谱识别混合物的未知组分的改进方法。 例如，本方法旨在通过包括获得用于限定混合数据空间的混合物的一组光谱数据的步骤来识别混合物的组分; 根据其投影到混合数据空间的角度对已知元素的多个库光谱进行排序; 计算顶级排名图书馆光谱的每个组合的校正相关系数; 以及选择具有最高校正相关系数的组合，其中所选组合的已知元素被识别为混合物的组分。

公开(公告)号：US20050032235A1

公开(公告)日：2005-02-10

申请号：US10870109

申请日：2004-06-17

Applicant: Srinivas Tummala ,  Ehrlic Lo ,  Simon Leung ,  San Kiang

Inventor： Srinivas Tummala ,  Ehrlic Lo ,  Simon Leung ,  San Kiang

IPC: G01N21/31 ,  G01N21/35 ,  G01N21/64 ,  G01N21/65 ,  G01N21/62

CPC classification number: G01N21/65 ,  G01N2021/3129

Abstract: The present invention relates to a method of monitoring the blending of at least two blendable components to yield a mixture.

Abstract translation: 本发明涉及监测至少两种可共混组分的混合以产生混合物的方法。

公开(公告)号：US20040201835A1

公开(公告)日：2004-10-14

申请号：US10492660

申请日：2004-04-10

Inventor： John Coates ,  Kenneth Mateer ,  Ronald Mellick

IPC: G01J003/00 ,  G01N021/17

CPC classification number: G01N21/53 ,  G01N21/0303 ,  G01N21/31 ,  G01N21/33 ,  G01N21/359 ,  G01N21/552 ,  G01N21/64 ,  G01N21/8507 ,  G01N33/2888 ,  G01N2021/3129 ,  G01N2021/3155

Abstract: A series of optical spectral sensors is based on a combination of solid-state sources (illumination) and detectors housed within an integrated package that includes the interfacing optics and acquisition and processing electronics. The focus is on low cost and the fabrication of the sensor is based on techniques that favor mass production. Materials and components are selected to support low-cost, high volume manufacturing of the sensors. Spectral selectivity is provided by the solid-state source(s) thereby eliminating the need for expensive spectral selection components. The spectral response covers the range from the visible (400 nm) to the mid-infrared (25,000 nm/25.0 nullm), as defined by the avalability of suitable low-cost solid-state source devices. A refractive optical system is employed, primarily in an internal reflection mode, allowing a selection of sample handling tools, including, but not restricted to internal reflectance and transmittance. A secondary channel allowing for light scattering or fluorescence methods is an option. The targeted applications of the sensing devices are for lubricants and functional fluids in the heavy equipment, automotive and transportation industries. A source reference channel is included to provide measurement stability and temperature compensation.

Abstract translation: 一系列光谱传感器基于固体源（照明）和包含接口光学器件和采集和处理电子器件的集成封装内的检测器的组合。 重点是低成本，并且传感器的制造基于有利于批量生产的技术。 选择材料和部件以支持传感器的低成本，高容量制造。 光谱选择性由固态光源提供，从而消除对昂贵光谱选择部件的需要。 光谱响应涵盖从可见（400nm）到中红外（25,000nm / 25.0mum）的范围，如合适的低成本固态光源装置的可用性所定义的。 采用折射光学系统，主要在内部反射模式中，允许选择样品处理工具，包括但不限于内部反射率和透射率。 允许光散射或荧光方法的次要通道是一种选择。 传感装置的目标应用是重型设备，汽车和运输行业中的润滑剂和功能流体。 包括源参考通道以提供测量稳定性和温度补偿。

公开(公告)号：US5602647A

公开(公告)日：1997-02-11

申请号：US562785

申请日：1995-11-27

Applicant: Kexin Xu ,  Yutaka Yamasaki ,  Harumi Uenoyama ,  Takeshi Sakura

Inventor： Kexin Xu ,  Yutaka Yamasaki ,  Harumi Uenoyama ,  Takeshi Sakura

IPC: G01N21/27 ,  G01J3/42 ,  G01N21/03 ,  G01N21/31 ,  G01N21/39 ,  G01N21/59 ,  G01N21/00

CPC classification number: G01N21/0303 ,  G01N21/31 ,  G01J3/42 ,  G01N2021/3129 ,  G01N21/39 ,  G01N21/59 ,  G01N2201/066 ,  G01N2201/0668

Abstract: An apparatus and method for optically measuring concentrations of components allow enhancement in measurement accuracy of concentration. The apparatus includes a cell, a light irradiator, a photodetector, and an arithmetic unit. The cell presents different optical path lengths at different locations and is to contain a sample therein. The light irradiator, which includes a variable-wavelength laser generator and a measuring system composed of convex lenses, outputs a collimated, enlarged laser beam, and makes the laser beam incident upon the cell. The photodetector comprises a multiplicity of photodetectors arranged in parallel to the surface of the cell, so that it can detect intensity of rays of transmitted light that have traveled over different optical path lengths at positions of an equal distance from the cell. The arithmetic unit, receiving a signal from the individual photodetectors, calculates concentrations of components in the sample based on optimum optical path lengths for different wavelengths and values of transmitted light at positions of the optimum optical path lengths, and further outputs calculation results.

Abstract translation: 用于光学测量组分浓度的装置和方法允许增强浓度的测量精度。 该装置包括单元，光照射器，光电检测器和运算单元。 细胞在不同位置呈现不同的光程长度，并且其中包含样品。 包括可变波长激光发生器和由凸透镜组成的测量系统的光照射器输出准直的，放大的激光束，并使激光束入射到电池上。 光电检测器包括与电池表面平行设置的多个光电检测器，使得其可以检测在距离电池相等距离的位置处已经在不同光程长度上行进的透射光的光强。 运算单元接收来自各个光电检测器的信号，根据最佳光程长度的不同波长的最佳光路长度和最佳光路长度位置处的透射光值，计算样品中的成分浓度，并进一步输出计算结果。

公开(公告)号：US5305076A

公开(公告)日：1994-04-19

申请号：US836786

申请日：1992-02-14

Applicant: Kaori Inoue ,  Yutaka Yamagishi ,  Masayuki Adachi

Inventor： Kaori Inoue ,  Yutaka Yamagishi ,  Masayuki Adachi

IPC: G01N21/31 ,  G01N21/35 ,  G01B9/02

CPC classification number: G01N21/31 ,  G01N2021/3129 ,  G01N2021/3595 ,  G01N2201/129

Abstract: A method and apparatus to determine the constituent ingredients in a sample by a spectroscopic procedure is disclosed. A Fourier transformation infrared spectrometer can secure data of a power spectrum of a sample and data of a power spectrum of a reference. A absorption spectrum of the sample from this respective data can be determined. A set of wave number points across the absorption spectrum of the sample that exhibit a predetermined linear characteristic can be selected and the absorption spectrum values corresponding to the set of wave number points can be used to calculate the concentrations of the constituent ingredients. A plurality of sets of wave number points can also be predetermined for a specific sample and limit values can be stored and compared to pick the most desirable set of wave number points for calculating the concentration of the constituent ingredients.

Abstract translation: 公开了一种通过光谱方法确定样品中构成成分的方法和装置。 傅里叶变换红外光谱仪可以确保样本的功率谱和参考的功率谱的数据的数据。 可以确定来自该各个数据的样品的吸收光谱。 可以选择呈现预定线性特征的样品的吸收光谱的一组波数点，并且可以使用对应于波数点集合的吸收光谱值来计算组分成分的浓度。 也可以为特定样品预定多组波数点，并且可以存储和比较极限值并选择用于计算构成成分浓度的最合适的波数点组。

公开(公告)号：US5170064A

公开(公告)日：1992-12-08

申请号：US720428

申请日：1991-06-26

Applicant: Philip T. Howe

Inventor： Philip T. Howe

IPC: G01N21/31 ,  G01N21/35 ,  G01N21/61

CPC classification number: G01N21/3504 ,  G01N2021/3129

Abstract: A nondispersive gas analyzer for use in monitoring the concentration of one or more gases, comprises a body having a cavity having an elliptical reflecting surface, defining a first focus and a second focus, for transmitting radiation between the focuses, a chamber (2) for holding a sample gas to be analyzed, one of the focuses being located within the sample chamber, a chamber (4) for holding an inert gas and a chamber (3) for holding an analyte gas, a radiation source (24) disposed at one of the focuses, and a radiation detector (26, 27) associated with each of the inert and analyte gas chambers for detecting the radiation passing through the sample gas and the inert gas and the radiation passing through the sample gas and the analyte gas located at the other of the focuses.

Abstract translation: PCT No.PCT / CA90 / 00288 Sec。 371日期1991年6月26日 102（e）日期1991年6月26日PCT提交1990年9月10日PCT公布。 公开号WO91 / 05240 日期：1991年4月18日。用于监测一种或多种气体的浓度的非分散气体分析仪包括具有限定第一焦点和第二焦点的具有椭圆形反射表面的空腔的主体，用于在聚焦 ，用于保持要分析的样品气体的腔室（2），其中一个焦点位于样品室内，用于保持惰性气体的室（4）和用于保持分析物气体的室（3），辐射 源极（24）和与每个惰性和分析物气室相关联的辐射检测器（26,27），用于检测通过样品气体和惰性气体的辐射以及通过样品的辐射 气体和位于焦点另一个处的分析物气体。

公开(公告)号：US5046018A

公开(公告)日：1991-09-03

申请号：US406230

申请日：1989-09-11

Applicant: Ross F. Flewelling ,  Eric T. Johansson ,  Lucille A. Ferus ,  John A. Culver ,  Keith H. Breton

Inventor： Ross F. Flewelling ,  Eric T. Johansson ,  Lucille A. Ferus ,  John A. Culver ,  Keith H. Breton

IPC: A61B5/083 ,  A61M16/10 ,  G01N21/31 ,  G01N21/35

CPC classification number: G01N21/3504 ,  A61B5/083 ,  A61M16/104 ,  A61M2016/102 ,  A61M2016/1035 ,  G01N2021/3129

Abstract: An agent gas analyzer that will determine the types and measure simultaneously the concentrations of a plurality of agent gases in a respiratory gas stream of an anesthetized patient, with the analyzer self-determining the agent gas types and concentrations each time gas measurements are made.

Abstract translation: 一种试剂气体分析仪，其将确定类型并同时测量麻醉患者的呼吸气流中的多种试剂气体的浓度，分析仪每次进行气体测量时自我确定试剂气体类型和浓度。

公开(公告)号：US5036198A

公开(公告)日：1991-07-30

申请号：US374439

申请日：1989-06-30

Applicant: Tilmann Spaeth

Inventor： Tilmann Spaeth

IPC: G01N21/31 ,  G01N21/35

CPC classification number: G01N21/3518 ,  G01N2021/3129 ,  G01N2021/3174

Abstract: A multicomponent photometer comprises a light source (10) emitting a continuum and from which a measuring light beam (12) originates. The measuring light beam (12) passes through a sample vessel (14) in which a sample gas can be introduced. A plurality of first gas vessels (26), which are filled with different gases looked for in the sample gas, and one or several second gas vessels (28), each of which is associated with at least one of the first gas vessels (26) and contains a reference gas, are located in a first filter wheel (22) and are optionally movable into the path of rays of the measuring light beam (12). One or several filters (32), each of which transmits only a limited spectral region about an absorption band of a gas contained in a first gas vessel (26) (blocking filter), are located in a second filter wheel (24) through which one of the filters (32) is optionally movable into the path of rays of the measuring light beam. The measuring light beam (12 ) is applied to a detector (36). The filter wheels (22,24) are controlled such that one and the same blocking filter (32) is arranged in the path of rays of the measuring light beam (12) in connection with the associated first gas filter (26) and in connection with the second gas filter (28) which is associated with this first gas filter (26).

Abstract translation: 多组分光度计包括发射连续谱的光源（10），测量光束（12）从该光源发出。 测量光束（12）通过其中可以引入样品气体的样品容器（14）。 在样品气体中填充有不同气体的多个第一气体容器（26）和一个或多个第二气体容器（28），每个第二气体容器（28）与至少一个第一气体容器（26 ）并且包含参考气体位于第一滤光轮（22）中并且可选地移动到测量光束（12）的射线的路径中。 一个或几个过滤器（32）位于第二过滤轮（24）中，每个过滤器（32）都位于第二过滤器轮（24）内，每个过滤器（32）仅在第一气体容器（26）（阻塞过滤器） 滤光器（32）中的一个可选地移动到测量光束的光线的路径中。 测量光束（12）被施加到检测器（36）。 控制滤光轮（22,24），使得在相关的第一气体过滤器（26）连接的测量光束（12）的光线路径中布置相同的阻挡滤光器（32）并且连接 其中与第一气体过滤器（26）相关联的第二气体过滤器（28）。

公开(公告)号：US5035505A

公开(公告)日：1991-07-30

申请号：US557647

申请日：1990-07-25

Applicant: Masamichi Tsukada ,  Hayato Tobe

Inventor： Masamichi Tsukada ,  Hayato Tobe

IPC: G01N21/31 ,  G01N21/74

CPC classification number: G01N21/74 ,  G01N2021/3111 ,  G01N2021/3114 ,  G01N2021/3129 ,  G01N2201/0666

Abstract: An atomic absorption spectroscopy photometer comprising: sample atomizing means for heating to atomize a sample; a plurality of light sources disposed at a like number of light flux incidence positions for causing light having required wavelengths to enter the atomized sample; means for measuring the degrees of light absorption of a plurality of elements contained in the sample by detecting the fluxes of light which have passed through the atomized sample; a plurality of holder means for holding the plurality of light sources, the plurality of light sources being larger in number than the plurality of the light flux incidence positions; and means for setting required ones of the light sources of the plurality at the corresponding light flux incidence positions by moving the holder means.