title: Precise measurement of liquid viscosity and surface tension with an improved oscillating drop method.
abstract: An improved oscillating drop method was developed to measure the surface tension and viscosity of a liquid without any external forces under microgravity conditions. The combination of a drop levitation system, a laser backlight system, and a line sensor enables the properties to be measured precisely. The surface tension value from 68.9+/-4.3 mN/m to 71.8+/-4.5 mN/m and the viscosity value of 0.92x10(-3) Pa s were obtained at 23.5 degrees C for pure water. These values agreed quite well with the reported value.
authors.affiliation: Joining and Welding Research Institute, Osaka University, 11-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Matsumoto
authors.forename: T
authors.initials: T
authors.lastname: Nakano
authors.forename: H
authors.initials: H
authors.lastname: Fujii
authors.forename: M
authors.initials: M
authors.lastname: Kamai
authors.forename: K
authors.initials: K
authors.lastname: Nogi