Water droplet contact angle measurement angle measurement contact angle measurement tool bar from left to right beginning, respectively, open the sample images, select the test method, the manual switch fitting, baseline round, oval baseline fitting circle to determine fit determined oval, draw a straight line, the mouse to select the line end fitting ellipse Shenzhen droplets angle calculated cutting angle, zoom power, edge extraction, automatic circle fitting method, automatic ellipse fitting method, automatic contour tangent method, partial contour tangent method, width and height France, young-laplace fitting, B-spline fitting, curve tracing, clear the screen, set the droplet information and display data results. The basic principle of the contact angle measurement of a liquid dripping on a smooth solid surface evenly, if Houjie droplets spreading angle, a balanced droplets will be formed, the shape of the three-phase from solid to liquid gas at the junction of the two phases of any the angle of the decision, usually specified at the junction of the three-phase self-liquid interface to the angle through droplets inside the gas-liquid interface of the equilibrium contact angle θ to represent. Relationship between the contact angle and the three interfacial tension of the Young equation is as follows: were solid - gas, solid - liquid and liquid - gas interfacial tension. Long known from the above equation droplets corner, only when l have clear when the three-phase boundary, that there is a certain value; equilibrium contact angle does not exist when l. Young equation is also known as wetting equation, it is one of the basic equations of interfacial chemistry. Young equation with three drops Shenzhen wetting angle _ ShengDing instrument (certified) _ droplets angle provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) (www.dgshengding.com) is Dongguan, Guangdong, dedicated instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum limits to meet customer needs. Sheng Ding instrument in leadership with the staff warmly welcome all inquiries negotiations to create ShengDing instrument a better future. You can also access (www.dgshengding.com/supply_details_31093740.html), for more information about the company.