Contact angle measurement instrument price, Jieyang contact angle measurement, ShengDing instrument (View) provided by Dongguan Sheng Ding Precision Instrument Co., Ltd .. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.gdshengding.com) is a specialist in the "contact angle measurement, tensile tester, drop angle detector, tables, interface equipment," the company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to participate in healthy competition in the market, so that the "" brand has a good reputation. We adhere to the "service first, customers first" principle, so ShengDing instrument has won the trust of customers in the congregation dedicated instrumentation, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! The above mentioned Conic law had also been included circular method, because the circle of a quadratic equation is just a special case. When the volume of the droplet is large, or a large proportion of liquids or surface tension of the liquid is relatively small, the formation of a significant breach of its spherical shape, can now use this approach could result in a large measuring errors can be as large as tens of degrees. So be sure to pay attention to the limitations of this approach. Advocates of this approach is only used in calculating the droplet droplet contact angle of less than 30 degrees, or the shape of equal or close to the ball. C2000 series has a contact angle measuring instrument instantly freeze, automatic continuous photography, high speed photography three kinds of shots the way, even the volatile liquid can also ensure accurate measurement. Meanwhile, outside the influence of subjective factors tangent is the biggest problem, JC2000 series of contact angle measurement of the geometric operations being done in software, the contact angle is no longer human judgment. The contact angle is defined as the gas, liquid and solid at the intersection by gas - liquid interface tangent and solid - liquid junction angle θ between the lines, is a measure of the degree of wetting. If θ90 °, then the solid is a liquid repellent, i.e., the liquid does not wet the solid contact angle measuring instrument manufacturers, to move easily on the surface, can not enter the pores. Wetting process and interfacial tension system related. A drop of the liquid level falling on the solid surface, when equilibrium is reached, subject to the following contact angle formed between each of the interfacial tension and the Young's equation (Young Equation): γs, g = γs contact angle meter retail, l + γg, l × cosθ can be predicted by its wetting following several situations: 1) when θ = 0, to completely wet; 2) when θ <90 °, part of the wetting or wetting; 3) when the temperature θ = 90 ° contact angle analyzer, is the dividing line between the wetting or not; and 4) when θ> 90 °, non-wetting; 5) When θ = 180 °, completely non-wetting. A capillary phenomenon of the liquid rising, falling height h. h represents the sign of the rise or fall. Infiltration of liquid rises, the contact angle is an acute angle; non-wetting liquid drop, the contact angle is an obtuse angle. Rising height h = 2 * surface tension coefficient / (liquid density * gravitational acceleration g * surface radius R). Rising height h = 2 * surface tension coefficient * cos contact angle / (liquid density * gravitational acceleration g * capillary radius r). Wettability problems with mining flotation, oil, textile, pesticide processing, photographic film production, as well as waterproof paint formulations, washing and so closely related. The contact angle of existing test methods are usually two: one for the shape of the image analysis method; the other for the gravimetric method which is often referred to as a wetting balance or osmosis contact angle meter, but the most widely used, the measured value is best direct and accurate image analysis method or appearance.