Particulate collector is carried onto airplane and collects suspended
particulate matter in the atmospheric air in such a manner that suspended particulate
matter is electrically charged by single-pole ions generated by a discharge electrode
and the thus electrically charged particulates are attracted to a collecting electrode
having an electric potential difference with respect to the discharge electrode
so that the particulates are collected by the collecting electrode. The particulate
collector is conveyed to an arbitrary altitude and driven so as to collect suspended
particulate matter contained in the atmospheric air at the arbitrary altitude.
Particulate collector is recovered onto the ground so as to make various measurements
or the thus collected particulate collector is subjected to various measurements
on airplane.
