Microscopy microscopy (microscopy) is a commonly used method for the determination of particle size. Depending on the particle size of the material, either by using general optical microscope, an electron microscope may be used. An optical microscope for measuring defense 0.8 ~ 150? M, is less than 0.8? M must be observed with an electron microscope. Scanning electron microscopy and transmission electron microscopy to directly observe the size commonly used in 1nm ~ 5? M within the scope of particles in nano materials for particle size and morphology analysis. Microscopy can understand the shape of the particles during the preparation process, the specific surface of the particle size distribution plotted in FIG tension meter, rather than just an average particle size distribution. However, when using an electron microscope morphology of nano particles were observed in the liquid surface tension meter, due to the prevalence of inter-particle van der Waals force and the Coulomb force, the particles are easy to aggregate to form pellets, difficult to measure particle size , the need to use a dispersing agent or an appropriate method of operation of dispersed particles. When conventional microscopy method for the determination of particle size distribution of the surface tension of the surface energy tester, commonly used statistical analysis of microscopic particle size of a large number of photographs law. Since the measurement results influenced by subjective factors, the measurement accuracy is not high, and the operation onerous and time-consuming, error-prone. In recent years, integrated image analysis system can quickly and accurately completed microscopy measurement and analysis system in the work. Comprehensive image analysis system for automatic measurement of particle size and automated analysis system. Microscope imaging test particles, and then complete the determination of particle size by computer image processing technology. Image analysis technology for their random measurements, statistics and intuitive is recognized measurement results and the actual size distribution best fit testing technology. The advantage is that you can directly observe whether particle agglomeration. The disadvantage is that a representative sample is poor, poor reproducibility of experimental results, the measurement speed. 1 material, additives (such as: lax agents, leveling agents) 1) the difference between the surfactant is not the same between batches; affect 2) is not the same as the concentration of additives on the surface tension of the system (the need plenty of slack to system water droplet angle meter surface tension energy, toner-free pure research performance additives do first, then add the toner, but the toner particle size spread difference will affect the adsorption of surfactants and surface tension) 2, The solvent used to make the ink surface tension meter test a different solvent distinction between batches); 2) Effect of different concentrations of solvent on the surface tension of the system. Surface tension meter can test, ShengDing instrument (certified), tension meter offered by Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (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, and satisfy customer needs. Sheng Ding instrument in leadership with the staff warmly welcome all inquiries negotiations to create ShengDing instrument a better future.