Method of measuring the concentration of gas in the presence of liquid particles
Patent
·
OSTI ID:6309595
To evaluate the droplet evaporation and liquid/vapor phase interactions in aerosols and sprays, an optical method for measuring the concentration of the gas phase is provided. Two laser beams are passed through a mixture of the gas and liquid particles, one beam having a wavelength not absorbed by the gas and the second having a wavelength which is absorbed by the gas. Attenuation of each beam is measured, the droplet size distribution is measured by a light scattering technique and the concentration of gas in the path of the light beams is determined from the attenuation of each beam, the droplet size distributions, and known parameters.
- Assignee:
- General Motors Corporation
- Patent Number(s):
- US 4470697
- OSTI ID:
- 6309595
- Resource Relation:
- Patent File Date: Filed date 11 May 1982; Other Information: PAT-APPL-262190
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
54 ENVIRONMENTAL SCIENCES
AEROSOLS
LIGHT SCATTERING
MEASURING METHODS
ABSORPTION
CHEMICAL COMPOSITION
DROPLETS
EVAPORATION
GASES
LASER RADIATION
LASERS
LIQUIDS
MIXTURES
VAPORS
VISIBLE RADIATION
WAVELENGTHS
COLLOIDS
DISPERSIONS
ELECTROMAGNETIC RADIATION
FLUIDS
PARTICLES
PHASE TRANSFORMATIONS
RADIATIONS
SCATTERING
SOLS
440300* - Miscellaneous Instruments- (-1989)
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
LIGHT SCATTERING
MEASURING METHODS
ABSORPTION
CHEMICAL COMPOSITION
DROPLETS
EVAPORATION
GASES
LASER RADIATION
LASERS
LIQUIDS
MIXTURES
VAPORS
VISIBLE RADIATION
WAVELENGTHS
COLLOIDS
DISPERSIONS
ELECTROMAGNETIC RADIATION
FLUIDS
PARTICLES
PHASE TRANSFORMATIONS
RADIATIONS
SCATTERING
SOLS
440300* - Miscellaneous Instruments- (-1989)
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)