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Priority to DE19702020032priorityCriticalpatent/DE2020032B2/de
Priority to GB1111971Aprioritypatent/GB1336665A/en
Publication of DE2020032A1publicationCriticalpatent/DE2020032A1/de
Publication of DE2020032B2publicationCriticalpatent/DE2020032B2/de
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
G01N21/274—Calibration, base line adjustment, drift correction
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Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Mathematical Physics
(AREA)
Theoretical Computer Science
(AREA)
Spectroscopy & Molecular Physics
(AREA)
Health & Medical Sciences
(AREA)
Life Sciences & Earth Sciences
(AREA)
Chemical & Material Sciences
(AREA)
Analytical Chemistry
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Biochemistry
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General Health & Medical Sciences
(AREA)
General Physics & Mathematics
(AREA)
Immunology
(AREA)
Pathology
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Amplifiers
(AREA)
Spectrometry And Color Measurement
(AREA)
DE197020200321970-04-241970-04-24Verfahren und schaltanordnung zur nacheichung von spektral geraeten
PendingDE2020032B2
(de)