Energy conservation smashed stones, stone increases the surface energy, but at the same time you also do work in Shenzhen droplets angle measurement, energy conservation. Chemistry, University explained that the surface layer of molecules more than the internal part of the energy molecule known as surface energy. Surface level: the crystal of the original three-dimensional periodic interrupts electron levels are formed at the surface, also known as surface states. Special properties due to the surface potential and the surface layer of the three-dimensional crystal in the interior of the electron which is different electronic states to exhibit special properties. Theoretically, often the traditional band calculation method (see band theory) is applied to the surface of a thin layer, in order to calculate the electron energy and wave function. Description of the wave function of the surface electronic states exist only a few atomic layers of the surface area of ??water droplets angle measurement, drop angle measurement, the wave function decays rapidly when further inside. From the bond model, the surface level of surface atoms originated in outward direction has unsaturated bond, known as dangling bonds. The contact angle and the surface tension of the relationship can be expressed as: COS 0 = 1+ C (A a B) wherein: the liquid surface tension of the liquid-gas interface A--; B_ solid surface tension solid-liquid interface; C- - constant; 0-- liquid contact angle and solid surface. In the case of a fixed phase, A is a constant value, if this is the case, then the substrate should be the same as the surface energy. Price drops angle, angle of water droplets, ShengDing instruments provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) (www.dgshengding.com) strong, credible, in Dongguan, Guangdong specialized instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead ShengDing instrument and you hand into the brilliant, for a better future!