04,28,2026 80 views
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As a strategic investment company of Corona China in the United States, Shanghai Solon has achieved a leap in the development of droplet angle measuring instruments (contact angle measuring instruments) from hardware technology, software algorithms to product quality through nearly 15 years of efforts. The waterdrop angle measuring instrument or contact angle measuring instrument, as the basic instrument for analyzing the physical and chemical properties of solid materials in the field of interface chemistry, has been stuck in the stage of protractors from around 1940 to 1980. Its main feature is the microscope stage of using simple geometric dimension measurements such as width height method, angle measurement method or circle fitting, ellipse fitting or tangent method. Starting from the late 1980s, the fitting algorithm for the Young Laplace equation, led by Professor A.W. Neumann's team, was proposed, which pioneered the use of imaging methods to analyze surface tension and interfacial tension values. In fact, for a long time, the core of A.W. Neumann's algorithm was to test surface tension or interfacial tension rather than actually applying it to test the contact angle properties of solid materials. The major drawback of fitting the Young Laplace equation for contact angle measurement or droplet angle testing is that it cannot be applied to the roughness, chemical diversity, and heterogeneity of the sample surface that objectively exist in fact, and thus affect the contact angle value or droplet angle value, water contact angle value. In recent years, the Asha algorithm invented by Shanghai Solon has truly achieved a leap from fitting the Young Laplace equation that requires axial symmetry to measuring the true solid contact angle or droplet angle that is non axisymmetric. At the same time, hardware aspects such as: 1. The water droplet angle measuring instrument must have a sample stage and a control structure for micrometer level adjustment of the lens; 2. The water droplet angle measuring instrument must have a shading plate or use a parallel light source; 3. The use of a color camera in the water droplet angle measuring instrument is more conducive to obtaining clarity and improving measurement accuracy; 4. The water droplet angle measuring instrument must require the provision of a 3D ruby ball calibration and tuning tool to analyze the horizontal calibration effect of the sample stage. 5. Only the forward and backward angles analyzed and tested using the Asha algorithm are truly reliable Furthermore, Shanghai Solon proposed the concept of 3D contact angle measurement and the industry's technological roadmap. It is precisely because of the introduction of the new concept of contact angle or droplet angle measurement as mentioned above that the accuracy of contact angle measurement or droplet angle measurement has been improved, and the characterization ability of the discipline has been greatly enhanced, which has received widespread support and praise. Recently, many customers have purchased Shanghai Solon's droplet angle measuring instrument and contact angle measuring instrument, including Dalian University of Technology, Institute of Nanoscience and Technology of the Chinese Academy of Sciences, Shaanxi Normal University, etc. We would like to express our gratitude together. We will continue to work hard and devote more enthusiasm to serving customers, striving to achieve greater glory!
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