粉じんの濃度測定に関する研究 : 第3報, 圧力増加率測定器の性能

概要

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On the measuring method of the dust concentration in the gas flow using a dust sampler of the flat paper filter type, we have, up to the present, determind the value of the dust concentration C by measuring the value of P^^・ which designates the rate of increase of the pressure drops per unit time through the flat paper filter. And then, if the value of P^^・ is expressed directly and continuously, the dust concentration C could be obtained in the same manner. This report has been made on the continuous and direct measuring apparatus of P^^・ by means of the substitution of q for P^^・, and hence, q is the value of water quantity which is transferred in a special water manometer according to the increasing of P^^・. Therefore, the value of P^^・ can be expressed by the following formula : P^^・=κq in this formula, the value of κ is a function of the surface area of special water manometer. The raults of these investigations, have revealed that the value of P^^・ can be obtained continuously and exactly enough by measuring the value of q which is indicated by the small rotameter.
一般社団法人日本機械学会の論文
1962-02-25