The interface refers to a transition zone with a thickness of several molecules in contact between two phases, such as a gas phase, which is commonly referred to as the surface. Strictly speaking, the surface should be the interface between a liquid or solid and its saturated vapor, but it is customary to refer to the interface between a liquid or solid and air as the surface of the liquid or solid. Common interfaces include: gas-liquid interface, gas-solid interface, liquid-liquid interface, liquid-solid interface, and solid solid interface. Unlike surface tension, molecules in the interfacial layer are subject to the interaction of molecules of the same substance in the bulk phase and molecules of substances in another phase with different properties, and their forces may not necessarily cancel each other out. Therefore, interfacial tension is usually much smaller than surface tension.

Product Introduction

The intermolecular forces form the interfacial tension or surface tension of a liquid, and the magnitude of the tension value can reflect the physical and chemical properties of the liquid and its material composition. It is one of the important indicators for evaluating product quality in related industries. The PZ-A1 fully automatic tension tester is based on the circular ring method (platinum ring method) to measure the surface tension (liquid gas phase interface) and interfacial tension (liquid-liquid phase interface) of various liquids. This method is widely used due to its advantages of simple operation and high accuracy. Widely used in industries such as electricity, petroleum, chemical, pharmaceutical, food, and education.

Instrument Features

The use of fast response electromagnetic force balance sensors has improved measurement accuracy and linearity;

Real time display of equivalent tension value and current weight (can be used as an electronic balance for weighing);

Integrated temperature detection circuit, automatic temperature compensation for test results;

240 × 128 dot matrix LCD display screen, no labeled buttons, with screen protection function; Historical records with time stamps, up to 255 can be stored;

Built in high-speed thermal micro printer, with beautiful and fast printing, and offline printing function;

Equipped with a standard RC232 interface, it can be connected to a computer for easy processing of test data;