利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2601 条记录 (耗时 0.026 秒)

    Optical detection system calibration
    4.
    发明授权
    Optical detection system calibration 有权

    公开(公告)号：US12092567B2

    公开(公告)日：2024-09-17

    申请号：US17762456

    申请日：2021-05-24

    申请人： ams Sensors Singapore Pte. Ltd.

    发明人： Francesco Paolo D'Aleo ,  Javier Miguel Sánchez ,  Kotaro Ishizaki ,  Peter Roentgen

    IPC分类号： G01N21/27 ,  G01N21/55

    CPC分类号： G01N21/274 ,  G01N21/55 ,  G01N2201/127

    摘要： According to a first aspect of the present invention there is provided a method of measuring the optical reflectance R of a target using a detection system comprising a light emitter and a light detector spaced apart from one another. The method comprises illuminating the target with the light emitter, detecting light reflected from the target using the light detector, wherein the light detector provides an electrical output signal SS indicative of the intensity of the detected light, and determining the optical reflectance R of the target according to (Formula 1), where RR is the spectral reflectance of a reference standard, SR is the detector electrical output signal with the reference standard in place, SH is the detector electrical output signal with no target in front of the light emitter and light detector, and M is a calibration factor.








    R
    =


    M
    ·

    R
    R


    ⁢



    s
    s

    -

    s
    H




    M
    ·

    ⌈


    s
    R

    -

    s
    H


    ⌉


    -


    R
    R

    ⁢

    ⌈


    s
    R

    -

    s
    s


    ⌉






    ,




    (
    I
    )

    METHOD AND APPARATUS FOR REMOVING NOISE FROM DATA
    5.
    发明公开
    METHOD AND APPARATUS FOR REMOVING NOISE FROM DATA 审中-公开

    公开(公告)号：US20240280474A1

    公开(公告)日：2024-08-22

    申请号：US18565310

    申请日：2022-06-06

    申请人： RENISHAW plc

    发明人： Ian Mac BELL

    IPC分类号： G01N21/27

    CPC分类号： G01N21/274 ,  G01N2201/127 ,  G01N2201/1296

    摘要： A method for removing noise from spectral data recorded using a spectrometer. The method includes normalising spectral data to generate normalised spectral data and applying a machine learning model to the normalised spectral data. The machine learning model is trained to remove noise from spectral data using normalised training data, wherein the spectral data is normalised based on a different scaling to the normalisation of the training data.

    GAS SENSOR DEVICE AND METHOD FOR UPDATING BASELINE CALIBRATION PARAMETER
    6.
    发明公开
    GAS SENSOR DEVICE AND METHOD FOR UPDATING BASELINE CALIBRATION PARAMETER 审中-公开

    公开(公告)号：US20240264077A1

    公开(公告)日：2024-08-08

    申请号：US18567571

    申请日：2022-06-10

    申请人： Senseair AB

    发明人： Cheng Yang ,  Tobias Oechtering ,  You Yang

    IPC分类号： G01N21/3504 ,  G01N21/27

    CPC分类号： G01N21/3504 ,  G01N21/274 ,  G01N2201/12784

    摘要： A computer implemented method and a gas sensor device comprising a spectroscopic sensing unit (2), a memory (3) and a control unit (4), is described. The control unit (4) is configured to output calibrated values, which are measures of a concentration of a gas component measured by the spectroscopic sensing unit (2), wherein the calibrated values are determined from measurement values obtained from the spectroscopic sensing unit (2) and a baseline calibration parameter retrieved from the memory (3). The control unit is configured to update the baseline calibration parameter (zero) by identifying the minimum measurement value obtained during a predetermined first time period (14), obtaining a time for the first time period (14), obtaining a model value corresponding to the obtained time, determining an updated baseline calibration parameter based on the minimum measurement value and the model value, and updating the baseline calibration parameter stored in the memory (3).

    QUANTIFICATION OF TARGET ANALYTE BASED ON MULTI-LAYER MULTI-VARIANT SPECTRA ANALYSIS FOR SPECTROSCOPIC ANALYZERS
    7.
    发明公开
    QUANTIFICATION OF TARGET ANALYTE BASED ON MULTI-LAYER MULTI-VARIANT SPECTRA ANALYSIS FOR SPECTROSCOPIC ANALYZERS 审中-公开

    公开(公告)号：US20240219298A1

    公开(公告)日：2024-07-04

    申请号：US18532680

    申请日：2023-12-07

    申请人： Endress+Hauser Optical Analysis, Inc.

    发明人： Xiang Liu ,  Kuan-Ting Yeh ,  Chih-Husan Chang

    IPC分类号： G01N21/31 ,  G01N21/27

    CPC分类号： G01N21/3103 ,  G01N21/274

    摘要： A method of spectroscopic analysis includes: collecting a set of calibration spectra for calibration gas samples by scanning a sample range of wavelengths; calculating a first concentration of a target analyte and first concentrations of background components for each calibration spectrum using a multivariant algorithm; modeling an ideal concentration of the target analyte as a function of the first concentrations using a correlative model; collecting a field spectrum for an unknown field gas sample, wherein the field gas sample includes the target analyte and at least some of the background components; calculating a second concentration of the target analyte and second concentrations the background components for the field spectrum using the multivariant algorithm; correcting the second concentration of the target analyte using the correlative model and second concentrations of the background components; and determining a corrected target analyte concentration in the field gas sample based on the corrected second concentration.

    Devices, Systems, and Methods for Analyzing Measurement Objects
    8.
    发明公开
    Devices, Systems, and Methods for Analyzing Measurement Objects 审中-公开

    公开(公告)号：US20240175807A1

    公开(公告)日：2024-05-30

    申请号：US18071690

    申请日：2022-11-30

    申请人： Aikemy Gmbh

    发明人： Kotaro ISHIZAKI ,  Agata Dorota ISHIZAKI-SROKA

    IPC分类号： G01N21/27

    CPC分类号： G01N21/274 ,  G01N2201/121

    摘要： A device for analyzing a sample includes a measurement area at which the sample is to be located, an illumination arrangement, and first and second spectral sensors. The illumination arrangement illuminates the measurement area such that the illumination is incident on the sample. Each of the first and second spectral sensors is oriented toward the measurement area to collect illumination arriving from the measurement area. The first spectral sensor performs a spectral measurement of the sample in response to the incident illumination so as to produce spectral measurement data. The second spectral sensor measures background noise so as to produce background measurement data that provides at least a partial correction for noise in the spectral measurement data. In certain embodiments, operation of the first and second spectral sensors is switched such that the second spectral sensor performs a spectral measurement and the first spectral sensor measures background noise.