On the solid surface of the solid - liquid - gas at the point of the three-phase bordered by gas - liquid interface and the solid - liquid interface between two tangents to the liquid interposed therebetween is formed when the angle is called contact angle. In the industrial production process, usually completed using a contact angle measuring instrument interface directly antennae accurate measurements. A brief description of the commonly used measurement methods and related operating requirements below. To pay attention to the degree of understanding of user needs with features for testing surface tension, surface tension test method JC2000 series that came to the hanging drop method, classic, accurate, high requirements for operators (influenced by the operating level). If it is different testers need to batch test table interfacial tension original contact angle measurement, it is recommended to use my company's JK99 series of automatic tension meter, when droplets from the force field in free space temperature affect the contact angle measurement, Because the interfacial tension of the cylindrical ball. However, the contact angle measurement, when the droplet contact with a solid surface contact angle measurement instrument brand, its final shape depends on the relative size of the droplets of adhesion and cohesion inside the droplet and solid between. When a droplet placed on a solid plane, the droplets can automatically start to shop at a solid surface, or in contact with a solid surface into a certain angle of droplets exist. MN with size proportional to the length of the boundary of the surface tension meter F. Can be written as F = σL or σ = F / L. The ratio σ is called the coefficient of surface tension meter, its unit used dyn / cm. On the numerical coefficient of surface tension meter is equal to the liquid appearance of some adjacent to each other between the two traction unit length. Liquid surface tension meter coefficient = film appearance can / film surface tension meter area = F / (2 * taken segment length). Coefficient of surface tension of the liquid nature of the instrument, regardless of the size of the liquid. Sheng Ding instrument (Figure), the contact angle measuring instrument wholesale, contact angle measurement provided by the Dongguan City Sheng Ding Precision Instrument Co., Ltd .. "Contact angle measurement, tensile tester, drop angle detector, tables, interface equipment" preferred Dongguan Ding Sheng Precision Instrument Co., Ltd. (2), the company is located at: Dongguan City Changan cross the road by 1209 new 安生兴 room business center Over the years, Sheng Ding instrument to provide customers the best quality service, contact: Linan Jie. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Sheng Ding instrument expect to be your long term partner!