粉じんの浮遊性ならびに測定に関する研究
1959 年 75 巻 848 号 p. 71-75
詳細
1959 年 75 巻 848 号 p. 71-75
We made a new portable dust meter using photo-transistor and discussed on the flotability of airborne dust.
Compared with the Funken konimeter and Rôken filter paper dust sampler, our photo-transistorized dust meter has smaller in size, lighter in weight and wider practical applications in the field of dust clouds measurement in our laboratory and some colliery.
