TERMIUM Plus®
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DOUBLE BEAM SPECTROPHOTOMETER [1 record]
Record 1 - internal organization data 1986-04-02
Record 1, English
Record 1, Subject field(s)
- Scientific Instruments
- Optics
Record 1, Main entry term, English
- double beam spectrophotometer
1, record 1, English, double%20beam%20spectrophotometer
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
An instrument that uses a photoelectric circuit to measure the difference in absorption when two closely related wavelengths of light are passed through the same medium. 2, record 1, English, - double%20beam%20spectrophotometer
Record 1, French
Record 1, Domaine(s)
- Instruments scientifiques
- Optique
Record 1, Main entry term, French
- spectrophotomètre à double faisceau
1, record 1, French, spectrophotom%C3%A8tre%20%C3%A0%20double%20faisceau
masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- spectrophotomètre à deux faisceaux 2, record 1, French, spectrophotom%C3%A8tre%20%C3%A0%20deux%20faisceaux
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
C.R. Acad. Sc. Paris, 26/1/71, p.529 D RA. 3, record 1, French, - spectrophotom%C3%A8tre%20%C3%A0%20double%20faisceau
Record number: 1, Textual support number: 2 OBS
double-beam spectrometer : spectromètre à double faisceau. 4, record 1, French, - spectrophotom%C3%A8tre%20%C3%A0%20double%20faisceau
Record number: 1, Textual support number: 3 OBS
tube cathodique à deux faisceaux. 5, record 1, French, - spectrophotom%C3%A8tre%20%C3%A0%20double%20faisceau
Record number: 1, Textual support number: 4 OBS
Le spectrophotomètre est surtout utilisé pour étudier l'absorption des diverses substances. Le faisceau monochromatique fourni par le spectromètre est alors divisé en deux portions : l'une traverse l'échantillon à étudier, l'autre un coin absorbant produisant une atténuation connue, et les deux faisceaux sont ensuite comparés en les envoyant alternativement, par exemple, sur un récepteur photoélectrique : la composante alternative du courant électrique s'annule lorsque les deux faisceaux sont équilibrés. 6, record 1, French, - spectrophotom%C3%A8tre%20%C3%A0%20double%20faisceau
Record 1, Spanish
Record 1, Textual support, Spanish
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