DE2800990A1 - Laser-extinktionsmessgeraet - Google Patents

Laser-extinktionsmessgeraet

Info

Publication number
DE2800990A1
DE2800990A1 DE19782800990 DE2800990A DE2800990A1 DE 2800990 A1 DE2800990 A1 DE 2800990A1 DE 19782800990 DE19782800990 DE 19782800990 DE 2800990 A DE2800990 A DE 2800990A DE 2800990 A1 DE2800990 A1 DE 2800990A1
Authority
DE
Germany
Prior art keywords
laser
line filter
measuring device
high dust
extraneous light
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.)
Withdrawn
Application number
DE19782800990
Other languages
English (en)
Inventor
Heinz Ing Grad Hoelter
Ekkehard Prof Dr Weber
Helmut Dipl Phys Wiggers
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.)
HEINZ HOELTER FA
Original Assignee
HEINZ HOELTER FA
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 HEINZ HOELTER FA filed Critical HEINZ HOELTER FA
Priority to DE19782800990 priority Critical patent/DE2800990A1/de
Publication of DE2800990A1 publication Critical patent/DE2800990A1/de
Withdrawn legal-status Critical Current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

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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
DE19782800990 1978-01-11 1978-01-11 Laser-extinktionsmessgeraet Withdrawn DE2800990A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782800990 DE2800990A1 (de) 1978-01-11 1978-01-11 Laser-extinktionsmessgeraet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782800990 DE2800990A1 (de) 1978-01-11 1978-01-11 Laser-extinktionsmessgeraet

Publications (1)

Publication Number Publication Date
DE2800990A1 true DE2800990A1 (de) 1979-07-19

Family

ID=6029276

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782800990 Withdrawn DE2800990A1 (de) 1978-01-11 1978-01-11 Laser-extinktionsmessgeraet

Country Status (1)

Country Link
DE (1) DE2800990A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006046A1 (de) * 1980-02-18 1981-08-20 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur optischen messung der rauchdichte
DE3539263A1 (de) * 1985-11-06 1987-05-14 Hoelter Heinz Verfahren zur feststellung der grenzbereiche zwischen kohle und gestein bei walzenschraemmladern und vortriebsmaschinen zur automatischen steuerung derselben

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006046A1 (de) * 1980-02-18 1981-08-20 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur optischen messung der rauchdichte
DE3539263A1 (de) * 1985-11-06 1987-05-14 Hoelter Heinz Verfahren zur feststellung der grenzbereiche zwischen kohle und gestein bei walzenschraemmladern und vortriebsmaschinen zur automatischen steuerung derselben

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee