Liquid drop surface tension measurement method adopting multi-section ellipse fitting

The invention belongs to the technical field of liquid drop surface tension measurement, and discloses a liquid drop surface tension measurement method adopting multi-section ellipse fitting. The method comprises the following steps of shooting a top view and a side view of a liquid drop hung on a fiber by using a measurement device, identifying a profile curve of the liquid drop, calculating the surface curvature radius of the liquid drop by using a multi-section ellipse fitting method, and obtaining the surface tension distribution of the liquid drop based on a Laplace equation. The device with a simple structure is utilized, the relation between the contour deformation of the liquid drops and the surface tension and the relation between the contour deformation of the liquid drops and the total stress can be obtained through calculation, and the method can be well applied to the technical fields of gas-liquid separation of fiber filtering media, fiber surface spraying and the like. 本发明属于液滴表面张力测量技术领域，公开了一种采用