PURPOSE: To obtain a device which can measure a dynamic surface tension of a liquid substance such as a liquid which contains a surface activated substance, a damping water in an offset printing, and a paint.
CONSTITUTION: A measuring device consists of a dynamic surface tension measuring sample formation part A which consists of a reserve tank 1 of a sample liquid 1', determination pumps 2 and 2', an injection nozzle 3, a catch pan, and a circulation device part of liquid to the reserve tank 1, a measuring part B which measures a waveform of a standing wave which is created by a dynamic surface tension measuring sample formation part, and an analysis part C which analyzes a data which is measured by a measuring device which measures an outer diameter of a standing wave of a target by scanning in a direction of a constant axis by a laser light source.
HAYAKAWA MIZUKADO
SHIMOKAWA HIDEAKI
