Record Display for the EPA National Library CatalogRECORD NUMBER: 9 OF 30
|Main Title||Field study on application of laser coincidence absorption measurement techniques.|
|CORP Author||General Electric Company.; General Electric Co., Syracuse, N. Y. Electronics Lab.|
|Publisher||General Electric Co., Electronics Lab,|
|Stock Number||PB-210 671|
|Additional Subjects||( Air pollution ; Infrared detection) ; ( Gas detectors ; Infrared detection) ; ( Ethylene ; Gas detectors) ; ( Ammonia ; Gas detectors) ; Field tests ; Performance evaluation ; Carbon dioxide lasers ; Infrared lasers ; Absorption spectra ; Errors ; Electromagnetic interference ; Design ; Transmittance ; Remote sensing ; Air pollution detection ; Laser spectroscopy|
The purpose of the research was to conduct a field study on the merits and limitations of laser coincidence absorption measurement technique applied to long-path monitoring of a gaseous pollutant in an urban atmosphere. Two gaseous pollutants, ethylene and ammonia, were selected and spectral interferences identified. Using a spectrally tunable CO2 laser, measurements and system evaluation were conducted. Selected pollutant concentrations and spectral interference effects were recorded. Concurrent point measurements were made by gas chromatograph for ethylene concentrations. Overall system effectiveness and test results were analyzed and performance evaluated.
APTD 0981. EPA EHSD 718. Microfiche. Feb. 1972. NTIS: PB 210 71.