DE112042C - - Google Patents

Info

Publication number
DE112042C
DE112042C DENDAT112042D DE112042DA DE112042C DE 112042 C DE112042 C DE 112042C DE NDAT112042 D DENDAT112042 D DE NDAT112042D DE 112042D A DE112042D A DE 112042DA DE 112042 C DE112042 C DE 112042C
Authority
DE
Germany
Prior art keywords
smoke
pipe
strength
light source
intensity
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.)
Active
Application number
DENDAT112042D
Other languages
German (de)
English (en)
Publication of DE112042C publication Critical patent/DE112042C/de
Active legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/29Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection

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)
DENDAT112042D Active DE112042C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE112042C true DE112042C (enrdf_load_stackoverflow)

Family

ID=381732

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT112042D Active DE112042C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE112042C (enrdf_load_stackoverflow)

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