FR1240249A - Perfectionnements aux enregistreurs notamment pour colorimètres - Google Patents

Perfectionnements aux enregistreurs notamment pour colorimètres

Info

Publication number
FR1240249A
FR1240249A FR808556A FR808556A FR1240249A FR 1240249 A FR1240249 A FR 1240249A FR 808556 A FR808556 A FR 808556A FR 808556 A FR808556 A FR 808556A FR 1240249 A FR1240249 A FR 1240249A
Authority
FR
France
Prior art keywords
colorimeters
recorders
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
Application number
FR808556A
Other languages
English (en)
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.)
Bayer Corp
Original Assignee
Technicon Instruments Corp
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 Technicon Instruments Corp filed Critical Technicon Instruments Corp
Application granted granted Critical
Publication of FR1240249A publication Critical patent/FR1240249A/fr
Expired 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
    • G01N21/27—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
    • 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
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Spectrometry And Color Measurement (AREA)
FR808556A 1958-10-27 1959-10-27 Perfectionnements aux enregistreurs notamment pour colorimètres Expired FR1240249A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76990758A 1958-10-27 1958-10-27

Publications (1)

Publication Number Publication Date
FR1240249A true FR1240249A (fr) 1960-09-02

Family

ID=25086858

Family Applications (1)

Application Number Title Priority Date Filing Date
FR808556A Expired FR1240249A (fr) 1958-10-27 1959-10-27 Perfectionnements aux enregistreurs notamment pour colorimètres

Country Status (4)

Country Link
BE (1) BE584056A (fr)
CH (1) CH378561A (fr)
FR (1) FR1240249A (fr)
GB (1) GB899145A (fr)

Also Published As

Publication number Publication date
GB899145A (en) 1962-06-20
CH378561A (de) 1964-06-15
BE584056A (fr)

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