1960 年 29 巻 11 号 p. 753-757
For determining the viscosity of liquid by the use of Hagen-Poiseuille's law, there are two methods: the constant pressure difference method and the constant flow method. The former encounters difficulties in keeping the constancy of pressure difference. By the latter method and with an original device for maintaining the flow constant, the viscosity is measured continuously and accurately. Construction of this viscometer and results of measurement are shown.