As per the standard requirement of GB6541-86 “Measurement of interfacial tension between petroleum product oil and water”(Ring method), this automatic interfacial tension meter is suitable for measuring the surface tension of variety of liquids (liquid-gas phase interface) and interfacial tension between mineral oil and water (liquid-liquid phase interface).
Large screen dot matrix LCD display and unmarked keys under english menu are adopted for this instrument, which realizes high automaticity and reliability, good repeatability and simple operation. All the test can be done only operate according to the menu prompt.
The operating principal of this instrument is the application of high frequency induction micro displacement automatic balance measuring system to torsion balance, i.e. when the force applied on platinum ring changed, balance beam connected with platinum ring displaced in two vortex probes, so that the inductance between those two vortex probes will be changed as well, which resulted in differential transformer and input signal of differential amplifier in the circuit out of balance, then the electrical signal that will be changed with the variation of the force to platinum ring will be output after amplified and transformed to microprocessor for treatment, finally the actual tension of sample will be calculated automatically as per standard of GB6541.
Display method：Large screen dot matrix LCD display with backlit, Chinese menu prompt, which involves all the test and calculation of GB6541.
Key：Unmarked key under Chinese menu prompt
Measurement range： 2～100 Mili N/M
Sensitivity：0.1 Mili N/M
Accuracy：0.1 Mili N/M
Operating temperature：10～30℃(Typical value：25℃)
Power supply：AC 220V±5% 50Hz