Droplets angle measurement calibration, ShengDing instrument (certified), the contact angle provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) is specialized in the "contact angle measurement, tensile tester, drop angle detector, surface and interface equipment, mold Monitor" of the enterprise, the company of "honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. The contact angle is not complicated, popular to say the contact angle measurement calibration sheet that drops in the semi-solid surface morphology of the natural formation of the solid outer tangent plane. Contact angle is widely used, it can be said to relate every detail around the contact angle measurement standard piece, such as we hope the rain does not stick on car glass, but on the contrary we want to paint the car on a steel plate and never fall off. Other vegetables such as pesticides and foliar, coatings and internal and external walls, insulating oil and insulating materials, surface modification of nano-materials, etc., from the teaching and research, industrial and agricultural production and daily life abound. Front butt antenna analyzer relevant measurement methods were introduced contact angle measurement standards, the implementation should pay attention to the following two questions: Balancing time and system temperature stability, when the system is not balanced, the contact angle will change, Then the dynamic contact angle is called contact angle, dynamic contact angle of a liquid on a large number of research activities on the viscosity of the solid planar or spreading important (due to viscosity, long balancing time). Together, the temperature change on larger systems, because of changes in surface tension, contact angle will change, therefore, if one has been based Planar balanced system, the contact angle change, the ability to change the temperature related factors affecting briefly discrimination approach is to balance the impact time is usually in one direction, and temperature fluctuations can increase or decrease the formation of γ. In addition to balancing the time and temperature, the effects of exposure to the elements as well as the angle stable contact angle hysteresis, and adsorption. New Progress in particle size analysis of nanomaterials with a wide range of applications in the field of high technology industries heart, defense, medicine, etc., particle measurement technology will lower measurement limit, wide measurement range, measurement accuracy and precision, good reproducibility direction. Therefore, the particle measurement technology requirements are also increasing. Looking at the various particle measurement methods and techniques, to meet the higher requirements of particle size analysis, light scattering method, based on the Brownian motion of the particle measurement methods such as particle size and mass spectrometry analysis methods will be more complete and more widely used. To suit the needs of the development of nanotechnology, particle size analysis methods nanomaterials gradually become an important part of the particle size analysis. Currently, nanomaterials for particle size analysis method is mainly dynamic light scattering particle size analysis and photon correlation spectroscopy, the measurement of the smallest particle size of 20nm and can reach 1nm.