Calculation of Efficiencies of Aerosol Generating Devices from Flux Measurements Obtained in Field Trials

摘要

A method used for calibrating aircraft-mounted aerosol generators has involved a 'fly-by' of the aircraft upwind of a sampling array on a tall tower. This method is reexamined to determine whether it is suitable for calibrating aerosol generators mounted on slow-moving ground vehicles. It is shown that when the vehicular speeds are as small as only twice the wind speed, the calibration results are likely to be erratic and many trials must be run to obtain a reasonably good estimate of the aerosol generator's efficiency. (Author)