CH494951A - Method for determining the opacity of an object and apparatus for carrying out this method - Google Patents

Method for determining the opacity of an object and apparatus for carrying out this method

Info

Publication number
CH494951A
CH494951A CH1374668A CH1374668A CH494951A CH 494951 A CH494951 A CH 494951A CH 1374668 A CH1374668 A CH 1374668A CH 1374668 A CH1374668 A CH 1374668A CH 494951 A CH494951 A CH 494951A
Authority
CH
Switzerland
Prior art keywords
opacity
determining
carrying
Prior art date
Application number
CH1374668A
Other languages
French (fr)
Inventor
George Filby Eric
John Hobbs Derek
Original Assignee
Johnson Matthew & Co Ltd
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 Johnson Matthew & Co Ltd filed Critical Johnson Matthew & Co Ltd
Publication of CH494951A publication Critical patent/CH494951A/en

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
    • G01N21/59—Transmissivity
    • G01N21/5907—Densitometers
    • G01N21/5911—Densitometers of the scanning type

Landscapes

  • Physics & Mathematics (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)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
CH1374668A 1967-09-15 1968-09-13 Method for determining the opacity of an object and apparatus for carrying out this method CH494951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4226767A GB1245403A (en) 1967-09-15 1967-09-15 Improvements in and relating to a method of and apparatus for determining the opacity of an object

Publications (1)

Publication Number Publication Date
CH494951A true CH494951A (en) 1970-08-15

Family

ID=10423657

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1374668A CH494951A (en) 1967-09-15 1968-09-13 Method for determining the opacity of an object and apparatus for carrying out this method

Country Status (2)

Country Link
CH (1) CH494951A (en)
GB (1) GB1245403A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115082A (en) * 1974-02-19 1975-09-09

Also Published As

Publication number Publication date
GB1245403A (en) 1971-09-08

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Legal Events

Date Code Title Description
PL Patent ceased