CA980147A - Digital direct reading colorimeter - Google Patents

Digital direct reading colorimeter

Info

Publication number
CA980147A
CA980147A CA163,059A CA163059A CA980147A CA 980147 A CA980147 A CA 980147A CA 163059 A CA163059 A CA 163059A CA 980147 A CA980147 A CA 980147A
Authority
CA
Canada
Prior art keywords
direct reading
digital direct
colorimeter
reading colorimeter
digital
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
CA163,059A
Other languages
English (en)
Other versions
CA163059S (en
Inventor
Raymond W. Kiess
Peter H. Stewart
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.)
KIESS INSTRUMENTS
Original Assignee
KIESS INSTRUMENTS
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 KIESS INSTRUMENTS filed Critical KIESS INSTRUMENTS
Application granted granted Critical
Publication of CA980147A publication Critical patent/CA980147A/en
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
    • G01N21/251—Colorimeters; Construction thereof
    • G01N21/253—Colorimeters; Construction thereof for batch operation, i.e. multisample apparatus

Landscapes

  • Physics & Mathematics (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)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (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)
CA163,059A 1972-02-08 1973-02-07 Digital direct reading colorimeter Expired CA980147A (en)

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
CA980147A true CA980147A (en) 1975-12-23

Family

ID=26918732

Family Applications (1)

Application Number Title Priority Date Filing Date
CA163,059A Expired CA980147A (en) 1972-02-08 1973-02-07 Digital direct reading colorimeter

Country Status (5)

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

Families Citing this family (4)

* 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
US7751043B2 (en) 2007-11-02 2010-07-06 Deka Products Limited Partnership Apparatus and methods for concentration determination using polarized light
CN112729465B (zh) * 2021-01-13 2024-05-14 杭州师范大学 一种液体检测仪
CN113970642A (zh) * 2021-11-22 2022-01-25 山东威高血液净化制品股份有限公司 一种自动化蛋白筛选系数测试装置及其测试方法

Also Published As

Publication number Publication date
SE409368B (sv) 1979-08-13
NL7301816A (en)van) 1973-08-10
JPS4897582A (en)van) 1973-12-12
GB1424823A (en) 1976-02-11

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