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DIAL SYSTEM [1 record]

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Record 1 1989-04-03

English

Subject field(s)
  • Scientific Instruments
  • Environmental Studies and Analyses
  • Air Pollution
CONT

DIAL Techniques. DIAL (Differential Absorption of Laser Light) uses a two or more wavelength LIDAR to examine the absorption of a pollutant. By subtracting the effect from the non-absorbed wavelength, the system can be made specific to a certain pollutant. DIAL systems have been used for remotely measuring SO2 but at the present time sensitivity is low requiring tens to hundreds of parts per million concentrations.

French

Domaine(s)
  • Instruments scientifiques
  • Études et analyses environnementales
  • Pollution de l'air

Spanish

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