PARTICLE COUNTER

摘要

The present invention relates to a particle counter which is provided with n flow tubes, n sensing units and with n lens units for respectively guiding light to the n flow tubes, which particle counter is able to count fine particles flowing to the n flow tubes and hence can shorten the measuring time by 1/n. The particle counter according to the present invention comprises: a lightsource; n flow tubes through which passes light irradiated from the lightsource, and which are provided such that a fluid containing the fine particles to be measured flows through n flow pathways; n sensing units which are disposed facing the lightsource, with the n flow tubes in between, and which sense the n quantities of light that have respectively passed through the n flow tubes; and a plurality of lenses which are disposed between the lightsource and the n sensing units and guide the light irradiated from the lightsource to the n flow tubes and the n sensing units.