SE409368B - Digital direktutlesande filterfotometer - Google Patents

Digital direktutlesande filterfotometer

Info

Publication number
SE409368B
SE409368B SE7301448A SE7301448A SE409368B SE 409368 B SE409368 B SE 409368B SE 7301448 A SE7301448 A SE 7301448A SE 7301448 A SE7301448 A SE 7301448A SE 409368 B SE409368 B SE 409368B
Authority
SE
Sweden
Prior art keywords
direct reading
digital direct
reading filter
filter photometer
photometer
Prior art date
Application number
SE7301448A
Other languages
English (en)
Inventor
R W Kiess
P H Stuart
Original Assignee
Medico Electronic Inc
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
Priority claimed from US00224457A external-priority patent/US3819276A/en
Priority claimed from US00310771A external-priority patent/US3833864A/en
Application filed by Medico Electronic Inc filed Critical Medico Electronic Inc
Publication of SE409368B publication Critical patent/SE409368B/sv

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
    • G01N21/251—Colorimeters; Construction thereof
    • G01N21/253—Colorimeters; Construction thereof for batch operation, i.e. multisample apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)
SE7301448A 1972-02-08 1973-02-02 Digital direktutlesande filterfotometer SE409368B (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00224457A US3819276A (en) 1971-02-09 1972-02-08 Digital direct reading colorimeter
US00310771A US3833864A (en) 1972-11-30 1972-11-30 Digital direct reading colorimeter

Publications (1)

Publication Number Publication Date
SE409368B true SE409368B (sv) 1979-08-13

Family

ID=26918732

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7301448A SE409368B (sv) 1972-02-08 1973-02-02 Digital direktutlesande filterfotometer

Country Status (5)

Country Link
JP (1) JPS4897582A (sv)
CA (1) CA980147A (sv)
GB (1) GB1424823A (sv)
NL (1) NL7301816A (sv)
SE (1) SE409368B (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7656527B2 (en) 2006-11-07 2010-02-02 Deka Products Limited Partnership Method and apparatus for determining concentration using polarized light
WO2009059313A1 (en) 2007-11-02 2009-05-07 Deka Products Limited Partnership Apparatus and methods for concentration determination using polorized light
CN112729465B (zh) * 2021-01-13 2024-05-14 杭州师范大学 一种液体检测仪

Also Published As

Publication number Publication date
GB1424823A (en) 1976-02-11
CA980147A (en) 1975-12-23
JPS4897582A (sv) 1973-12-12
NL7301816A (sv) 1973-08-10

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