CA2093015A1 - A method of calibrating a spectrometer using correlation between calibration sample spectra and measured spectra - Google Patents

A method of calibrating a spectrometer using correlation between calibration sample spectra and measured spectra

Info

Publication number
CA2093015A1
CA2093015A1 CA2093015A CA2093015A CA2093015A1 CA 2093015 A1 CA2093015 A1 CA 2093015A1 CA 2093015 A CA2093015 A CA 2093015A CA 2093015 A CA2093015 A CA 2093015A CA 2093015 A1 CA2093015 A1 CA 2093015A1
Authority
CA
Canada
Prior art keywords
sample
statistical
spectrometer
rule
model
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2093015A
Other languages
French (fr)
Other versions
CA2093015C (en
Inventor
Jon Steven Gethner
Terry Ray Todd
James Milton Brown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2093015A1 publication Critical patent/CA2093015A1/en
Application granted granted Critical
Publication of CA2093015C publication Critical patent/CA2093015C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/22—Fuels, explosives

Abstract

A method of operating a spectrometer to determine property (13) and/or composition data of a sample comprises an on-line spectral measurement (1) of the sample using a computer controlled spectrometer, statistical analysis of the sample data based upon a statistical mode (2, 3, 4) using ample calibration data, and automatically, identifying a sample if necessary based upon statistical and expert system (rule-based) criteria.
Sample collection based upon statistical criteria consists of performing a statistical or rule-based check against the model to identify measurement data which are indicative of chemical species not in the samples already stored in the model. Samples identified either by a statistical criteria or using an expert system (rule-based decisions) are used preferably to isolate the liquid sample using a computer controlled automatic sampling system.
The samples can by saved for subsequent laboratory analysis in removable sample containers. The results of the laboratory analysis together with the on-line spectroscopic measurements are preferably used to update the model being used for the analysis.
CA002093015A 1990-10-12 1991-10-09 A method of calibrating a spectrometer using correlation between calibration sample spectra and measured spectra Expired - Fee Related CA2093015C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US59643590A 1990-10-12 1990-10-12
US596,435 1990-10-15
PCT/US1991/007583 WO1992007326A1 (en) 1990-10-12 1991-10-09 Method of estimating property and/or composition data of a test sample

Publications (2)

Publication Number Publication Date
CA2093015A1 true CA2093015A1 (en) 1992-04-13
CA2093015C CA2093015C (en) 1999-12-21

Family

ID=24387259

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002093015A Expired - Fee Related CA2093015C (en) 1990-10-12 1991-10-09 A method of calibrating a spectrometer using correlation between calibration sample spectra and measured spectra

Country Status (8)

Country Link
US (1) US5446681A (en)
EP (1) EP0552291B1 (en)
JP (1) JP3130931B2 (en)
CA (1) CA2093015C (en)
DE (1) DE69128357T2 (en)
MY (1) MY107650A (en)
SG (1) SG45468A1 (en)
WO (1) WO1992007326A1 (en)

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CN110300837A (en) * 2016-12-05 2019-10-01 通用电气(Ge)贝克休斯有限责任公司 According to the synthesis chromatogram of physical property
CN116609720A (en) * 2023-07-19 2023-08-18 深圳市北汉科技有限公司 Data-driven-based intelligent error compensation method and system for desk-top multimeter

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CN110300837B (en) * 2016-12-05 2023-04-04 通用电气(Ge)贝克休斯有限责任公司 Synthetic chromatograms based on physical properties
CN116609720A (en) * 2023-07-19 2023-08-18 深圳市北汉科技有限公司 Data-driven-based intelligent error compensation method and system for desk-top multimeter
CN116609720B (en) * 2023-07-19 2023-09-12 深圳市北汉科技有限公司 Data-driven-based intelligent error compensation method and system for desk-top multimeter

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WO1992007326A1 (en) 1992-04-30
EP0552291A1 (en) 1993-07-28
CA2093015C (en) 1999-12-21
JPH06502247A (en) 1994-03-10
EP0552291B1 (en) 1997-12-03
US5446681A (en) 1995-08-29
MY107650A (en) 1996-05-30
JP3130931B2 (en) 2001-01-31
EP0552291A4 (en) 1994-10-26
DE69128357T2 (en) 1998-07-16
DE69128357D1 (en) 1998-01-15

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