Surface tension and surface area viscosity measuring device

摘要: The invention discloses a surface tension and area viscosity measuring device. Before gas is introduced into bottle, an open container rises. After capillary absorbs proper amount of liquid sample, the descends. Then from bottle to form bubble in capillary. A camera or video provided record forming process shape images so as measure radius bubble. differential pressure meter arranged on outside testing box communicated with which capillary, can read difference between inner outer be calculated through Laplace formula, thus calculation greatly simplified. by following steps: during unbalance state balance state, recording time, calculating according images, finally substituting data formula calculate viscosity. device has advantages that sample using little, moisture not required, speed fast, precision high, equipment utilization rate high.