公开(公告)号：US11982616B2

公开(公告)日：2024-05-14

申请号：US17653514

申请日：2022-03-04

Applicant: Headwall Photonics Inc.

Inventor： Kwok-Keung Wong

IPC: G01J3/28 ,  G01N21/31 ,  G01N33/02

CPC classification number: G01N21/314 ,  G01J3/2823 ,  G01N33/025 ,  G01J2003/2833 ,  G01J2003/2836

Abstract: A method for determining a quality condition of an agricultural product comprises: receiving a received light at a light detector, the received light comprising reflected, scattered, refracted, and/or deflected light from the agricultural product; transmitting the received light to a spectrometer; producing agricultural product (AP) spectral data of the received light using the spectrometer; with a computer in electrical communication with the spectrometer, comparing the AP spectral data to reference spectral data to determine whether the agricultural product has the quality condition, the reference spectral data corresponding to known quality conditions of the agricultural product; and with the computer, generating an output signal corresponding to the quality condition of the agricultural product.

公开(公告)号：US20170167920A1

公开(公告)日：2017-06-15

申请号：US15343220

申请日：2016-11-04

Applicant: OTO PHOTONICS INC.

Inventor： Meng-Wei Lee ,  Hsu Feng Cheng ,  Jan Liang Yeh

IPC: G01J3/28 ,  G01J3/02

CPC classification number: G01J3/027 ,  G01J3/0264 ,  G01J3/2803 ,  G01J2003/283 ,  G01J2003/2833 ,  G06T2207/10144 ,  G06T2207/20

Abstract: An electronic circuitry of a spectrometer, configured to electrically connect with an optical sensor of the spectrometer, includes a memory unit configured to store a measurement setting, a trigger line configured to transmit at least one trigger signal, and a control unit electrically connected to the trigger line and the memory unit. The control unit is configured to receive the trigger signal from the trigger line so as to instruct the spectrometer to perform a plurality of exposure measurements continuously under the measurement setting, and to save a plurality of spectral data acquired from the exposure measurements into the memory unit. A spectrometer using the electronic circuitry for performing the exposure measurements and a measuring method of the spectrometer are also provided.

公开(公告)号：US08825214B2

公开(公告)日：2014-09-02

申请号：US13300110

申请日：2011-11-18

Applicant: Ken Yves Haffner

Inventor： Ken Yves Haffner

IPC: G01B21/02 ,  G01J5/00 ,  G01N21/27 ,  G01J3/42 ,  G01N21/35 ,  G01N21/39 ,  G01J3/28 ,  G01J5/08

CPC classification number: G01J5/0014 ,  G01J3/42 ,  G01J5/0821 ,  G01J2003/2833 ,  G01J2003/2873 ,  G01J2003/423 ,  G01N21/274 ,  G01N21/3504 ,  G01N21/39

Abstract: A method is provided for the measurement of parameters of a gas present in a gas turbine combustion chamber. The method includes tuning a laser to a range containing the absorption lines of species to be analyzed in the gas, and directing the laser light through the combustion chamber and detecting laser light reflected off boundary walls of the combustion chamber. In order to analyze the absorption spectrum measured at high temperatures and pressures, a signature recognition algorithm is applied to the spectrum. The measured absorption spectrum is cross-correlated with a calibration absorption model spectrum for the absorption lines at several temperatures, pressures, and concentrations generated prior to the measurement. Values for pressure, temperature, and concentrations of selected species in the gas are determined simultaneously allowing direct control of the combustion chamber process. An apparatus for carrying out the method is also provided.

Abstract translation: 提供了一种用于测量燃气轮机燃烧室中存在的气体的参数的方法。 该方法包括将激光调谐到包含待分析物质的吸收线的范围内，并将激光引导通过燃烧室并检测从燃烧室的边界壁反射的激光。 为了分析在高温和高压下测得的吸收光谱，应用了一个签名识别算法。 测量的吸收光谱与在测量之前产生的几个温度，压力和浓度下的吸收谱线的校准吸收模型光谱互相关。 同时确定气体中选定物种的压力，温度和浓度值，直接控制燃烧室过程。 还提供了一种用于执行该方法的装置。

公开(公告)号：US5508525A

公开(公告)日：1996-04-16

申请号：US439462

申请日：1995-05-11

Applicant: Stephen Day ,  Kailash Swarna

Inventor： Stephen Day ,  Kailash Swarna

IPC: G01J3/12 ,  G01J3/28 ,  G01N21/35 ,  G01J3/02

CPC classification number: G01J3/28 ,  G01N21/3504 ,  G01J2003/1234 ,  G01J2003/2833 ,  G01J2003/2866

Abstract: A method and apparatus for identifying an unknown gas by generating an infrared spectrum of the unknown gas using an infrared spectrophotometer that includes a circular variable interference filter, compressing the infrared spectrum of the unknown gas, and comparing the compressed infrared spectrum of the unknown gas to a library of compressed infrared spectra of reference compounds. After comparison, the compressed spectra that most closely match the unknown gas are decompressed and displayed. Because frequency characteristics of circular variable interference filters vary from filter to filter, information designating these frequency characteristics for the particular filter employed are used in generating the infrared spectrum of the unknown gas.

公开(公告)号：US5351198A

公开(公告)日：1994-09-27

申请号：US837235

申请日：1992-02-14

Applicant: Masayuki Adachi ,  Yutaka Yamagishi ,  Kaori Inoue

Inventor： Masayuki Adachi ,  Yutaka Yamagishi ,  Kaori Inoue

IPC: G01J3/28 ,  G01N21/31 ,  G01N21/35 ,  G01N21/00

CPC classification number: G01N21/31 ,  G01J2003/2833 ,  G01N2021/3129 ,  G01N2021/3595 ,  G01N2201/129

Abstract: A quantitative analytical method with spectrometric analysis, wherein a sample is irradiated with light, and a plurality of ingredients contained in the sample to be measured are quantitatively determined on the basis of absorptivities at a plurality of appointed wave number points in an absorption spectrum obtained at that time. An assumed concentration-operating matrix is obtained from a combination of reference spectra for a plurality of ingredients, of which the concentrations have been known, and is previously prepared. The concentrations of the respective ingredients to be measured are calculated by the use of the concentration-operating matrix, thereby capable of carrying out a quantitative analysis in a short time with high accuracy.

Abstract translation: 一种使用光谱分析的定量分析方法，其中用光照射样品，并且基于在多个指定波数点处的吸收光谱定量测定待测样品中包含的多种成分，该吸收光谱在 那时。 从多种成分的参考光谱的组合获得假定的浓度操作矩阵，其浓度已知，并且预先准备好。 通过使用浓度操作矩阵计算待测量的各成分的浓度，从而能够在高精度的短时间内进行定量分析。

公开(公告)号：US4766551A

公开(公告)日：1988-08-23

申请号：US909952

申请日：1986-09-22

Applicant: Timothy H. Begley

Inventor： Timothy H. Begley

IPC: G01J3/28 ,  G01N21/35 ,  G01Q70/00 ,  G06F7/04

CPC classification number: G01J3/28 ,  G01J2003/2833 ,  G01N21/359 ,  G01N21/4738

Abstract: In a method of identifying or comparing compositions of material, the reflectivity of a material to be identified or compared is measured at index points distributed through the near infrared spectrum. A similar measurement is made for at least one standard or known material. From the reflectivity measurements, sets of values representing the first or higher order derivative curves are determined. These values mathematically define vectors by representing the coordinates of the end points of the vectors and multiple dimensional space. An index of a similarity between the composition of a test sample and a standard material is calculated by determining the cosine of the angle between the corresponding vectors.

Abstract translation: 在识别或比较材料成分的方法中，在通过近红外光谱分布的指标点测量待鉴定或比较的材料的反射率。 对至少一种标准或已知材料进行了类似的测量。 从反射率测量中，确定表示第一或更高阶导数曲线的值集合。 这些值通过表示向量和多维空间的终点的坐标在数学上定义向量。 通过确定相应向量之间的角度的余弦来计算测试样品的组成与标准材料之间的相似性的指数。

公开(公告)号：US4560275A

公开(公告)日：1985-12-24

申请号：US428311

申请日：1982-09-29

Applicant: Alexander F. H. Goetz

Inventor： Alexander F. H. Goetz

IPC: G01J3/02 ,  G01J3/04 ,  G01J3/12 ,  G01J3/28 ,  G01J3/36 ,  G01J3/42 ,  G01N21/31

CPC classification number: G01N21/314 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/0294 ,  G01J3/04 ,  G01J3/28 ,  G01J3/36 ,  G01J2003/1217 ,  G01J2003/123 ,  G01J2003/2833 ,  G01J2003/425 ,  G01J3/2803

Abstract: A portable analysis spectrometer (10) for field mineral identification is coupled to a microprocessor (11) and memory (12) through a bus (13) and A/D converter (14) to display (16) a spectrum of reflected radiation in a band selected by an adjustable band spectrometer (20) and filter (23). A detector array (21) provides output signals at spaced frequencies within the selected spectrometer band which are simultaneously converted to digital form for display. The spectrum displayed is compared with a collection of spectra for known minerals. That collection is stored in memory and selectively displayed with the measured spectrum, or stored in a separate portfolio. In either case, visual comparison is made. Alternatively, the microprocessor may use an algorithm to make the comparisons in search for the best match of the measured spectrum with one of the stored spectra to identify the mineral in the target area.

Abstract translation: 用于现场矿物识别的便携式分析光谱仪（10）通过总线（13）和A / D转换器（14）耦合到微处理器（11）和存储器（12），以将反射辐射的光谱显示（16） 频带由可调频带光谱仪（20）和滤波器（23）选择。 检测器阵列（21）以所选择的光谱仪带内的间隔的频率提供输出信号，其同时转换成数字形式用于显示。 所显示的光谱与已知矿物的光谱集合进行比较。 该集合存储在存储器中并选择性地显示测量光谱，或存储在单独的组合中。 在任一情况下，进行视觉比较。 或者，微处理器可以使用算法进行比较，以搜索所测量的光谱与所存储的光谱之一的最佳匹配以识别目标区域中的矿物质。

公开(公告)号：NO903947A

公开(公告)日：1991-04-25

申请号：NO903947

申请日：1990-09-11

Applicant: ERIDANIA

Inventor： VALLINI GIORGIO ,  SERRA CARLO ,  BIGONI RODOLFO ,  GAMBETTI GILBERTO ,  ROSSIN GIANCARLO ,  LODI SILVANO

IPC: G01J3/28 ,  G01N21/35 ,  G06K9/64

CPC classification number: G01N21/359 ,  G01J2003/2833 ,  G01N21/3563 ,  G01N2201/129

公开(公告)号：US20180236496A1

公开(公告)日：2018-08-23

申请号：US15884834

申请日：2018-01-31

Applicant: ANRITSU CORPORATION

Inventor： Ryota TAKASU ,  Yasuhiro MIYAKE ,  Soichiro KAI

IPC: B07C5/342 ,  G01N21/31 ,  G01N21/25 ,  G01D3/024 ,  G01D3/06 ,  G01R23/17

CPC classification number: B07C5/342 ,  G01D1/18 ,  G01D3/024 ,  G01D3/063 ,  G01D7/005 ,  G01D7/02 ,  G01J3/0264 ,  G01J3/027 ,  G01J2003/2833 ,  G01N21/255 ,  G01N21/31 ,  G01R23/17

Abstract: Provided are a measurement result display device and a measurement result display method which are capable of making a list of how much difference is present between an allowable value and a measurement value of each measurement item measured by a measuring instrument, in a visually discriminable state. An allowable upper limit value indicator 21 and an allowable lower limit value indicator 22 are disposed at display positions which are set in advance in a measurement result image 20 as positions indicating an allowable upper limit value and an allowable lower limit value, and a measurement value indicator 23 is disposed at a display position calculated from display positions of the allowable upper limit value indicator 21 and allowable lower limit value indicator 22 and a measurement value measured by the measurement unit 10.

公开(公告)号：US09933306B2

公开(公告)日：2018-04-03

申请号：US15257940

申请日：2016-09-07

Applicant: Keyence Corporation

Inventor： Shinichi Tsukigi ,  Sohei Kanoda ,  Yu Babasaki

IPC: G01J3/02 ,  G01J3/28 ,  G01V8/12 ,  G01J3/51 ,  B23K26/03 ,  G01J3/36 ,  G01N21/31 ,  G05B19/401 ,  G05B19/404 ,  G01N21/25 ,  G01J3/12 ,  G01J3/46

CPC classification number: G01J3/0275 ,  B23K26/032 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/0262 ,  G01J3/0286 ,  G01J3/0289 ,  G01J3/28 ,  G01J3/36 ,  G01J3/513 ,  G01J2003/1213 ,  G01J2003/2833 ,  G01J2003/466 ,  G01N21/251 ,  G01N21/31 ,  G01N2201/062 ,  G01V8/12 ,  G05B19/401 ,  G05B19/404

Abstract: There is provided a photoelectric switch capable of reducing a size of a whole device while suppressing light amount irregularity and color irregularity of detected light. The photoelectric switch includes: a surface mount LED, configured to generate a light containing a plurality of color components with different hues; an optical shield disposed between the surface mount LED and a light projecting lens to shield the light around an optical opening passing the light from the surface mount LED to the light projecting lens; a light receiving element configured to selectively receive the light to generate a plurality of light reception signals; a controller configured to control a light projecting amount of the surface mount LED based on the light reception signal.