Measurement of dielectric properties and determination of microwave emissivity of polluted waters
Conference
·
· IEEE Trans. Instrum. Meas.; (United States)
OSTI ID:5639924
The dielectric properties of polluted waters are measured with a reflection-type resonant cavity at 1.43 GHz. Very small water samples in quartz tubes of known volume are placed in the center of the maximum electric field. Measurement of the resonance-frequency variation and a change of the cavity's quality factor are used to determine the dielectric properties. The microwave emissivity of the polluted water is then calculated via the Fresnel equation and applied to data reductions of microwave radiometer measurements.
- Research Organization:
- NASA, Langley Research Center, Hampton, Va.
- OSTI ID:
- 5639924
- Report Number(s):
- CONF-800622-
- Conference Information:
- Journal Name: IEEE Trans. Instrum. Meas.; (United States) Journal Volume: IM-29
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
FREQUENCY MEASUREMENT
MEASURING INSTRUMENTS
MEASURING METHODS
MICROWAVE RADIATION
MONITORS
PHYSICAL PROPERTIES
POLLUTION
RADIATION DETECTORS
RADIATIONS
RADIOMETERS
RESONANCE
WATER POLLUTION
WATER POLLUTION MONITORS
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
FREQUENCY MEASUREMENT
MEASURING INSTRUMENTS
MEASURING METHODS
MICROWAVE RADIATION
MONITORS
PHYSICAL PROPERTIES
POLLUTION
RADIATION DETECTORS
RADIATIONS
RADIOMETERS
RESONANCE
WATER POLLUTION
WATER POLLUTION MONITORS