ニクロム薄板を用いたミスト粒径分布測定器の開発

概要

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An instrument for the measurement of mist size distribution has been developed by using a heated thin nichrome plate. It is composed of a single stage impactor with a nichrome collection plate heated by a constant electric current. The fundamental characteristics of the instrument were experimentally investigated by measuring the voltage change on the collection plate due to the attachment of a droplet with a known volume. It was confirmed that the experimental evaporation heat obtained by the integrated voltage change during the droplet evaporation was in agreement with the theoretical value. The instrument was used to determine size distributions of mist at various air flow velocities through the impactor. The heated nichrome plate method gave the results compatible with the light diffraction method.
日本エアロゾル学会の論文