The original angle of water droplets, ShengDing instrument (certified), drop angle provided by 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, tables, interface instrument" 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. Material particle size analysis method to have many, has developed and produced more than 200 kinds of works based on various analytical measurement device, and there are always new particle size measurement methods and instruments developed. Although the method of particle size analysis of a wide variety of original angle of water droplets, can basically be summarized as the following method. The traditional methods of measuring particle sieving, microscopy, sedimentation, electric induction method, a method developed in recent years with a laser diffraction method, laser light scattering, photon correlation spectroscopy, electron microscopy image analysis method, based on the particle-step Brownian motion of the particle size and mass measurement method. Wherein the laser scattering method and photon correlation spectroscopy method because of high speed, wide measurement range, the data is reliable, reproducible, high degree of automation, ease of on-line measurement, etc. are widely used. (Particle size analysis exactly what is the surface tension meter, three major points are summarized below, for everyone to do a clarified: 1, surface tension meter tangent direction and level, and some of the dividing line, and two straight, if liquid the plane drops angle, surface tension meter is on this plane. If the surface is curved, the surface tension meter on the surface in the section 2, the surface tension meter is a reflection of the molecular force. It occurs in liquids and gases Divide some of touch. is because the outer layer of the liquid molecules in particular the resolution. between liquid molecules and molecules inside almost immediately, the intermolecular spacing often maintain a balance, a little further away on the corner where cheap attraction drops , a little closer to repulsion, which, unlike the resolution of the liquid molecules of gas molecules as infinitely proliferation, but only near the equilibrium position and rotational oscillations in the liquid appearance neighboring molecules significantly affected because the only effect of liquid inside of the molecule, uneven force, so that the speed of larger molecules out of a very simple level, into steam, resulting molecules in the liquid outer skin (touch the liquid with a thin layer of gas) spread some more rare than the inner child spread relative to the liquid inside Some sub spreading angle for water droplets wholesale and are in a particular case. repulsion between molecules with the outer surface of the interval between each other decreases with the increase in this particular layer gravitational effects between molecules predominate. Thus If on the liquid neat appearance arbitrary dividing line MN to the liquid surface into a, b show a some two, some .F outer layer of some of the molecular attraction of b, Fb showed some right outer layer of molecules of a Some of the attraction, both big and small, some of the force must be equal and opposite. This outer layer in some mutual traction between any two, promoted trends liquid outer layer has a contraction because of the effect of surface tension meter, liquid looks old is tend to shrink as much as possible, so that the air in small droplets often circular ball shape.