Application of microwave Fabry--Perot resonators in instrumentation for air pollution research
The usefulness of the Fabry-Perot resonator as a sample cell in microwave spectrometer-type gaseous pollution detectors is discussed. The design of a new 70-GHz semiconfocal resonator with variable microwave coupling and wide-range piezoelectric tuning is presented. Experimental data were taken on cavity tuning performance and on the behavior of the variable microwave coupling structure. Theoretically obtained value for the cavity Q-factor is compared with experimental data.
- Research Organization:
- California Univ., Berkeley (USA). Lawrence Berkeley Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 7340753
- Report Number(s):
- LBL-4469
- Country of Publication:
- United States
- Language:
- English
Similar Records
Detection and measurements of air pollutants and constituents by millimeter-wave microwave spectroscopy
Millimeter-wave spectrometer for pollution research
Absorption coefficients of sulfur dioxide microwave rotational lines
Conference
·
Tue Aug 01 00:00:00 EDT 1978
·
OSTI ID:6482226
Millimeter-wave spectrometer for pollution research
Technical Report
·
Mon Feb 14 23:00:00 EST 1977
·
OSTI ID:6852478
Absorption coefficients of sulfur dioxide microwave rotational lines
Journal Article
·
Wed Dec 31 23:00:00 EST 1975
· J. Mol. Spectrosc.; (United States)
·
OSTI ID:7220870
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORS
DESIGN
EQUIPMENT
FABRY-PEROT INTERFEROMETER
INTERFEROMETERS
MEASURING INSTRUMENTS
MICROWAVE SPECTRA
SPECTRA
400104* -- Spectral Procedures-- (-1987)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORS
DESIGN
EQUIPMENT
FABRY-PEROT INTERFEROMETER
INTERFEROMETERS
MEASURING INSTRUMENTS
MICROWAVE SPECTRA
SPECTRA