[19p-S322-1~14] 1.5 Instrumentation, measurement and Metrology

[19p-S322-12] Measurement of a Liquid Viscosity and Density by Stainless Steel Ball Oscillated in the Liquid

〇Junichi Nishida¹, Tasuku Sakai¹, Kei Higashi¹, Takashi Iwakura¹ (1.Rion)

Keywords:viscosity,density,vibration type viscometer

A general vibration type viscometer measure a change of the amplitude of vibration depending on a liquid viscosity, and estimate a product of a liquid viscosity and density. However, in order to estimate the viscosity, it's necessary to divide the value by the density which is obtained with a densimeter. In this paper, we propose a way to estimate a liquid viscosity and density at the same time by measuring the drag which act on the stainless steel ball oscillated in the liquid.