ES2054378T3 - Vigilancia de color. - Google Patents

Vigilancia de color.

Info

Publication number
ES2054378T3
ES2054378T3 ES90917755T ES90917755T ES2054378T3 ES 2054378 T3 ES2054378 T3 ES 2054378T3 ES 90917755 T ES90917755 T ES 90917755T ES 90917755 T ES90917755 T ES 90917755T ES 2054378 T3 ES2054378 T3 ES 2054378T3
Authority
ES
Spain
Prior art keywords
target
pct
light
reflected light
sensor
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.)
Expired - Lifetime
Application number
ES90917755T
Other languages
English (en)
Inventor
Sajad Mohammed Jawad
John Frederick Alder
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Application granted granted Critical
Publication of ES2054378T3 publication Critical patent/ES2054378T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • 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
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • 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
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • G01J2001/1636—Arrangements with two photodetectors, the signals of which are compared one detector directly monitoring the source, e.g. also impulse time controlling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G01J2001/444—Compensating; Calibrating, e.g. dark current, temperature drift, noise reduction or baseline correction; Adjusting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G01J2001/4446—Type of detector
    • G01J2001/446—Photodiode
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/069—Supply of sources
    • G01N2201/0695—Supply to maintain constant beam intensity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/08—Optical fibres; light guides
    • G01N2201/082—Fibres for a reference path
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/127—Calibration; base line adjustment; drift compensation
    • G01N2201/12746—Calibration values determination
    • G01N2201/12753—Calibration values determination and storage

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Theoretical Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Eye Examination Apparatus (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Glass Compositions (AREA)

Abstract

LOS CAMBIOS DE LOS COLORES EN UN OBJETIVO, TAL COMO UN SENSOR QUIMICO UTILIZANDO UN REAGENTE INDICADOR DEL CAMBIO DE LOS COLORES PARA DETECTAR LA PRESENCIA DE GASES VENENOSOS, SE VIGILAN CONTINUAMENTE AL REFLEJAR EL OBJETIVO (10) SOBRE LA LUZ DEL SENSOR (16) ORIGINADA PRIMERO DESDE UNA FUENTE Y DESPUES DESDE OTRA FUENTE DE LUZ (12A, 12B, ETC), CADA UNA PROVISTA DE LONGITUD DE ONDA DE EMISION CONOCIDA Y DIFERENTE. EN CADA CICLO, OTRO SENSOR (14) RECOJE TAMBIEN LA LUZ DIRECTA PROCEDENTE DE LA FUENTE APROPIADA, CONECTADO EN UN CIRCUITO CERRADO (26) CON LOS CIRCUITOS EN LOS QUE LA INTENSIDAD DE EMISION SE COMPARAN CON UN VALOR DE REFERENCIA CONOCIDO (38) Y QUE AJUSTA LA INTENSIDAD DE LA EMISION DE FORMA QUE LA ESTABILIZA A SU VALOR DE REFERENCIA CONSTANTE. UNA VEZ QUE ESTA ESTABILIZADA, LA SEÑAL DE INTENSIDAD DE LUZ REFLEJADA PASA HACIA UN ALMACEN DE DATOS (20), DESPUES DEL CUAL UN DIVISOR (22) PRODUCE UNA SEÑAL DE SALIDA (36) QUE REPRESENTA LA PROPORCION DE LAS INTENSIDADES DE LA LUZ REFLEJADAEN DOS CICLOS DISTINTOS QUE SE ORIGINAN DE DOS FUENTES DE LUZ DISTINTAS (12A, 12B, ETC). EL CONDUCTO DE CADA CICLO ESTA CONTROLADO POR MEDIOS DE TEMPORIZACION (18). DONDE EXISTAN DOS FUENTES LUMINOSAS, LA LONGITUD DE ONDA DE LA SEGUNDA (12B) ESTA FUERA DE LA GAMA DE RESPUESTA DEL OBJETIVO, QUE LA PRIMERA (12A) QUE ESTA CERCA O EN LA RESPUESTA DEL OBJETIVO PRINCIPAL, DE FORMA QUE TODAS LAS SEÑALES DE SALIDA DEL DIVISOR REPRESENTAN VALORES SUCESIVOS DE LA INTENSIDAD DE LA LUZ REFLEJADA ACTUAL. ESTAS SEÑALES PODRAN PROCESARSE PARA MOSTRAR LA PROPORCION DE CAMBIO DE COLOR EN EL OBJETIVO Y PODRAN UTILIZARSE PARA OPERAR, POR EJ: UNA ALARMA.
ES90917755T 1989-06-15 1990-06-15 Vigilancia de color. Expired - Lifetime ES2054378T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898913800A GB8913800D0 (en) 1989-06-15 1989-06-15 Colour monitoring

Publications (1)

Publication Number Publication Date
ES2054378T3 true ES2054378T3 (es) 1994-08-01

Family

ID=10658501

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90917755T Expired - Lifetime ES2054378T3 (es) 1989-06-15 1990-06-15 Vigilancia de color.

Country Status (9)

Country Link
US (1) US5239175A (es)
EP (1) EP0477300B1 (es)
AT (1) ATE106556T1 (es)
CA (1) CA2058432A1 (es)
DE (1) DE69009475T2 (es)
DK (1) DK0477300T3 (es)
ES (1) ES2054378T3 (es)
GB (2) GB8913800D0 (es)
WO (1) WO1990015972A1 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362971A (en) * 1993-03-10 1994-11-08 Terrascope Systems, Inc. Fiber optic detection system
US5406067A (en) * 1993-08-17 1995-04-11 Tektronix, Inc. Electrically adjusted mosaic filter for use as an optical sensor in an optical measurement instrument
US5573953A (en) * 1994-09-09 1996-11-12 Quantum Group, Inc. Method for enhancing the response of a biomimetic sensor
US5859552A (en) * 1995-10-06 1999-01-12 Lsi Logic Corporation Programmable slew rate control circuit for output buffer
US6516101B1 (en) * 1997-10-09 2003-02-04 Mustek System, Inc. Image scanning device having image data correction function
US7248733B2 (en) * 1999-04-26 2007-07-24 Canon Kabushiki Kaisha Color-image processing apparatus and method, and storage medium
JP3787456B2 (ja) * 1999-04-26 2006-06-21 キヤノン株式会社 カラー画像処理装置、カラー画像処理方法及び記憶媒体
DE10025097B4 (de) * 2000-05-20 2004-04-15 Robert Bosch Gmbh Optischer Sensor und Verfahren zur Herstellung desselben
US20040175837A1 (en) * 2002-12-04 2004-09-09 Ulrich Bonne Compact opto-fluidic chemical sensor
EP2005144A1 (en) * 2006-04-13 2008-12-24 E.I. Du Pont De Nemours And Company Hand-held gas detector and method of gas detection
US10436761B2 (en) * 2015-05-05 2019-10-08 Honeywell International Inc. Gas identification by measuring stain development at multiple specific wavelength regions with narrow band optical sensors
EP3403074B1 (en) 2016-02-11 2021-12-01 Honeywell International Inc. Probing film that absorbs and reacts with gases, with transmitted light for higher gas sensitivity
CN113552120B (zh) 2016-02-11 2024-07-05 霍尼韦尔国际公司 在不同波长的光下吸收气体并与其反应以获得更高气体敏感度的探测膜
WO2017139584A1 (en) * 2016-02-11 2017-08-17 Honeywell International Inc. Probing film that absorbs and reacts with gases, with light of different wavelengths, humidity detection, and optionally temperature detection
CN114199162B (zh) * 2020-09-02 2024-09-13 博世华域转向系统有限公司 一种转向机用光电式角度传感器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910701A (en) * 1973-07-30 1975-10-07 George R Henderson Method and apparatus for measuring light reflectance absorption and or transmission
SE415397B (sv) * 1978-06-02 1980-09-29 Asea Ab Fiberoptiskt metdon
SE428061B (sv) * 1981-09-15 1983-05-30 Asea Ab Fiberoptisk metapparatur
EP0109686B1 (en) * 1982-11-22 1989-10-11 Hitachi Maxell Ltd. Color sensor
JPS59188517A (ja) * 1983-04-11 1984-10-25 Fanuc Ltd サ−ボ制御系の絶対位置検出方式
NL8400380A (nl) * 1984-02-07 1985-09-02 Optische Ind De Oude Delft Nv Inrichting voor het detecteren van kleurverschillen.
GB8420614D0 (en) * 1984-08-14 1984-09-19 Unvala Ltd Colour measuring apparatus
US4845647A (en) * 1985-01-24 1989-07-04 Accufiber, Inc. Method and apparatus for determining temperature in a blackbody radiation sensing system
US4760250A (en) * 1986-09-29 1988-07-26 Spectramed, Inc. Optoelectronics system for measuring environmental properties having plural feedback detectors
FI77736C (fi) * 1987-06-25 1989-04-10 Valtion Teknillinen Foerfarande foer reglering av straolkaella och reglerbar straolkaella.
NL191070C (nl) * 1987-06-25 1995-01-02 Exploitatiemaatschappij H J Va Inrichting voor het bepalen van de kleur van produkten, in het bijzonder tuinbouwprodukten.
JP3175935B2 (ja) * 1987-09-30 2001-06-11 株式会社東芝 光ファイバ応用センサ
ATE87737T1 (de) * 1987-12-03 1993-04-15 Siemens Ag Farbsensoranordnung fuer die erkennung von gegenstaenden mit farbigen oberflaechen.

Also Published As

Publication number Publication date
DK0477300T3 (da) 1994-07-11
CA2058432A1 (en) 1990-12-16
GB8913800D0 (en) 1989-08-02
US5239175A (en) 1993-08-24
EP0477300B1 (en) 1994-06-01
EP0477300A1 (en) 1992-04-01
DE69009475D1 (de) 1994-07-07
GB2250815A (en) 1992-06-17
WO1990015972A1 (en) 1990-12-27
GB2250815B (en) 1993-04-28
DE69009475T2 (de) 1994-09-29
GB9124684D0 (en) 1992-02-19
ATE106556T1 (de) 1994-06-15

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