On the photo-electric measurement of the concentration of suspended load
Hisao Fukushima, Isao Yakuwa · Institutional Repositories DataBase (IRDB) · 1953
A turbidimeter whieh employs a photo'cell and a lamp mounted in brass tube,s has been eonstructed and adjusted by the authors･ With this apparatus, an attempt was made to determine the coneentration of suspended load by measuring the transmission of Iight through the water.In tbis paper, a description of the apParatus and the results obtained between September, 1951 and November, 1952 on the lshikari River are reported with some discussion