China Surface Tension Test Manufacturers, Suppliers, Factory

Weshine® Surface tension test is measure the force on the surface of a liquid that causes it to form viscous droplets. This is sometimes referred to as interfacial tension test, and it depends on the fluid and the surface it interacts with. Since surface tension can manifest itself in many ways, there are several ways to measure it. When trying to measure the surface tension of a drop, a method called the suspension test is often used. This method measures surface tension using a device called a goniometer, which takes a high-resolution image of a drop hanging from the bottom of a syringe before it falls. It analyzes the shape of the drop and the contact angle, and using this information, the surface tension of the drop can be measured.

Several other methods are used in measuring the surface tension of a liquid rather than the surface of a drop. A popular method is called the Du Nooy ring method. This is when a ring, usually made of platinum, is placed on a liquid surface. The controlled device then slowly lifts the ring off the surface and calculates the force required to separate the liquid from the ring. This number is related to the measurement of the surface tension of a liquid. To measure the surface tension of a drop of liquid resting on a solid surface, a method called the sessile drop method is used. This method is often referred to as the contact angle test. It measures the contact angle of the drop with the surface on which it is located. This number can be converted to a measure of the surface tension of the drop.

Weshine inveted the Surface Tension Test Set, the working principle is to apply the high-frequency induction micro-displacement automatic balance measurement system to the torsion balance, that is, when the force acting on the platinum ring changes, the balance connected to the platinum ring The rod is displaced in the two eddy current probes, which changes the inductance generated in the two eddy current probes, which causes the differential transformer to be unbalanced, and the input signal of the differential amplifier in the circuit is also unbalanced, and the output is amplified by the amplifier. The electrical signal that changes with the force of the platinum ring is sent to the microprocessor for processing, and the actual tension of the tested sample is automatically calculated according to international standards.