Surface Tension Meter

I. Overview  No content provided for translation.

Interface Tension TesterGB6541-86The "Determination of Oil-Water Interfacial Tension for Petroleum Products" (Ring Method) standard specifies the measurement of surface tension (liquid-gas interface) for various liquids and the interfacial tension between mineral oils and water (liquid-liquid interface).

The Interface Tension Tester features a large-screen dot-matrix LCD display, full Chinese menu prompts with unmarked buttons, high level of automation, reliable performance, good repeatability, and extremely simple operation. Just follow the menu prompts after powering on to complete all tests.

Technical Specifications

Backlit large screen dot matrix LCD display with Chinese menu prompts

          Menu assembled inGB6541All tests and calculations as specified in the standard.

Key: Unlabeled key under Chinese menu prompts

Measurement Range: 2～100MilliNewton/Mi

Sensitivity:0.1Milli-Newton/Millet

Accuracy:0.1Milli-Newton/Mi

Resolution:0.1MilliNewton/Mi

Repetitiveness:0.3%

Applicable Temperature:10～30℃(Typical Value:25℃)

Applicable Humidity:(20～75)﹪RH

Power: AC220V±5%    50Hz

Power:20VA

Dimensions:185×260×360(Millimeter)

Weight:15Pounds

III. Working Principle

The working principle of the interface tension tester involves applying a high-frequency induction micro-displacement automatic balancing measurement system to a torsion balance. Essentially, when the force acting on the platinum ring changes, the balancing rod connected to the platinum ring generates displacement in the two eddy current probes. This displacement alters the inductance produced by the two eddy current probes, causing the differential transformer to lose balance. Consequently, the input signal of the differential amplifier in the circuit also loses balance. After being amplified by the amplifier, an electrical signal that varies with the force on the platinum ring is output. This signal is then sent to a microprocessor for processing, and in accordance with internationalGB6541Automatically calculates the actual tension of the tested sample.