Airborne atmospheric sampling systemThe atmospheric sampling system developed for use on board commercial airliners as part of the Global Atmospheric Sampling Program (GASP) is described. The automated air-constituent measuring system is installed in a Boeing 747 airliner below the passenger cabin floor near the nose wheel well. It consists of an air sample flow system, composed of air inlet and pressurization systems, computerized data acquisition and system control units which direct system operation in 15 modes, and commercial instruments significantly modified to measure low levels of atmospheric constituents (ozone, water vapor, nitrogen oxides, carbon monoxide, chlorofluoromethanes, particulates, condensation nuclei, sulfates and nitrates). Flight and meteorological data, including air temperature and altitude, are also recorded. The system is designed for servicing at 14-day intervals, and to require a minimum of aircrew involvement.
Document ID
19790066320
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Gustafsson, U. R. C. (United Airlines, Inc. San Francisco, Calif., United States)
Perkins, P. J. (United Air Lines, Inc. San Francisco, CA, United States)
Nyland, T. W. (United Air Lines, Inc. San Francisco, CA, United States)
Tiefermann, M. W. (United Air Lines, Inc. San Francisco, CA, United States)
Dudzinski, T. J. (NASA Lewis Research Center Cleveland, Ohio, United States)