What exactly is the surface tension of the instrument, the following summarizes the three major points, for everyone to do an analysis: 1, surface tension meter tangent direction and level, and some of the dividing line, and two straight, if the surface is flat, the surface tension instrument in this plane. If the surface is curved, the surface tension meter is in the section of this surface. 2, the surface tension of the instrument is a reflection of the molecular force. Some divide it occurs in liquids and gases when touched. Because the outer layer of the liquid molecules in particular the resolution. Between liquid molecules and the molecules inside almost immediately, the intermolecular spacing often maintain a balance, a little farther on the attraction, a little closer to repel the contact angle, which is the resolution of the liquid molecules like gas molecules as infinitely diffusion, but only near the oscillation and rotational position of equilibrium. Appearance of neighboring molecules in the liquid as the liquid inside of the molecule only has obviously been the effect of uneven force domestically contact angle, so that the speed of larger molecules out of a very simple level, into steam, resulting in the liquid outer skin (with gas Touch thin liquid) molecules is more rare than the spread within some sub-distribution. Some of the liquid with respect to the sub-spread, they 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. Therefore, if the liquid appearance of wanton neat dividing line MN the liquid into a, b two-some. F indicates that a some of the molecules in the outer layer b some attraction, Fb showed some right outer layer of molecules of the attractiveness of a somewhat, some force must be the size of the two equal and opposite. This outer layer of traction import any mutual contact between the two and some corner, to promote the tendency of the liquid outer layer having a collapsed, because the effect of the surface tension meter, liquid appearance always tends to shrink as much as possible, so that the air in small droplets often circular ball shape. Platinum plate method: When immersed in the liquid under test is sensed, the surrounding platinum plate would be the effect of surface tension of the liquid surface tension will try to pull down the platinum plate. When the liquid surface tension and other related counterbalance force and equilibrium, sensing platinum plate will stop inside the liquid immersion. At this time, the instrument will measure the balance sensor immersion depth, and converts it to the surface tension of the liquid. Platinum loop method: As is widely used du Nouy Tensiometer, this method is also known du Nouy method, and consequent easy operation is widely used. Platinum Tour de France said the law is the result of this test section between the liquid sample obtained will form a ring. JK99 Series Automatic tension meter for measuring regular table / interfacial tension, because its simple (one-button automatic), high speed (3 seconds), good repeatability, high accuracy measurement Kyowa contact angle is Currently the most widely used instrument tension. The disadvantage is that not measure ultra-low interfacial tension (such as oil and crude oil interfacial tension between the drive should be 10-5mN / m, can not be measured with a series JK99). JK99 Series Automatic tension meter imported sensors, although the cost is much higher than the domestic torsion wire sensors, but to ensure that the measurement accuracy. While using a dual temperature control technology, built-in electric heating or external temperature bath temperature control options. JK99B type must be connected to a computer to use, JK99C type as one of the dual-use, built-in LCD digital display and a small printer that can single stand-alone operation, but also can be connected to a computer to control the dynamic changes observed tension curve. Other parameters such as exactly the same two models of precision. Kyowa contact angle, PR contact angle, ShengDing instruments provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (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!