The standard requirement for a fully automatic interfacial tension tester (ring method) is to measure the surface tension of various liquids (liquid gas phase interface) and the interfacial tension between mineral oil and water (liquid-liquid phase interface). The instrument adopts a large screen dot matrix LCD display, with fully Chinese character menu prompts and unmarked buttons. It has a high degree of automation, reliable operation, good repeatability, and extremely simple operation. Simply press the menu prompts after turning on the machine to complete all experiments. The instrument has functions such as automatic temperature compensation, clock control, power-off storage, and automatic average settlement.

working principle

The working principle of this instrument is to apply the high-frequency induction small displacement automatic balance measurement system to the torsion balance. When the force acting on the platinum ring changes, the balance rod connected to the platinum ring will cause displacement in the two eddy current probes, resulting in a change in the inductance generated in the two eddy current probes. This causes the differential transformer to lose balance, and the input signal of the differential amplifier in the circuit also loses balance. The amplifier amplifies and outputs an electrical signal that changes with the force on the platinum ring. This signal is sent to the microprocessor for processing, and the actual tension of the tested sample is automatically calculated.

Instrument characteristics

1. The sensor adopts a high-quality system imported from Japan, with accurate test data, high precision, and good repeatability.

2. The platinum ring method/platinum plate method is used to determine the corresponding surface and interfacial tension as time and concentration change.

3. Windows operating interface, can work for a long time, record curves can be stored and printed.

4. Exquisite structural design, smooth platform operation, and low noise.

5. It can be connected to an external constant temperature water bath or an electrically controlled temperature platform (this platform has more accurate temperature control).

6. The instrument provides manual reset and software one click reset, and can be customized with interval automatic reset function according to customer needs.

7. The sensor measures data accurately and reliably.

Both platinum plates and platinum rings can measure the interfacial tension between liquid and liquid.

9. The instrument software has built-in calculation and correction formulas, eliminating the need for tedious calculations.

10. The integration of LCD display and micro printer enables the new JK99C fully automatic tensiometer to work independently, with easy mobility and instant output of results.

11. The instrument can be used for measuring liquids with medium to high viscosity, achieving surface tension testing in industries such as ink, paint, and petroleum.