




This instrument adopts SY-T5370 "Measurement Method of Surface and Interfacial Tension", GBT 18396-2001 "Determination of Surface Tension by Natural Latex Ring Method", GBT6541-86 "Measurement Method of Oil-Water Interfacial Tension of Petroleum Products (Ring Method)", "QB-T 1323 -91 Determination of Surface Tension of Detergents Ring Pull-up Liquid Film Method" "ISO 304-1985 Surfactants. Determination of Surface Tension by Pull-up Liquid Film Method" and other standards are designed, which can adapt to the surface tension and interfacial tension of various liquids The test adopts LCD digital display, and the test result will be displayed immediately after the test is completed, and the average value of multiple test results can also be automatically calculated. It is a meter and interfacial tension test instrument with strong performance and high cost performance.
The ring test method adopts scientific tension value correction methods, namely standard weight calibration and quasi-substance calibration.
①In order to eliminate the errors caused by factors such as the shape and pollution of the platinum ring in the ring method test, the gravity method is no longer used for correction, but two standard substances are used for correction. When the platinum ring is used for a long time, its shape changes, or When it is polluted and a test error occurs, it can be restored to normal as long as it is corrected with a standard substance, without having to replace the expensive platinum ring.
②Standard weight calibration method, which is the calibration method of the standard specification related to interfacial tension. According to this calibration method, the equipment is verified and a test certificate is issued.
The use of integrated molding shell and precise direct transmission mechanism greatly improves the reliability and durability of the instrument, and the transmission mechanism has no vibration, which provides a physical guarantee for improving the test accuracy.
It is controlled by 32-bit ARM high-end single-chip microcomputer, with fast operation speed and high operation accuracy, and a specially compiled filter algorithm is used to ensure the stability and accuracy of the displayed value.
Adopt the high-end 24-bit AD converter of American ADI company, the conversion speed is fast, and the force value acquisition is more accurate.
The improved torsion wire lever structure makes the movement track of the sensor core as close to a straight line as possible to ensure the linearity of the test.
Using domestic (CN) high-end LVDT displacement sensor, good linearity, sensitive output signal, accurate impedance matching, to ensure the repeatability of the test
The instrument has an automatic stop function, which can be set to stop automatically when testing the surface tension. After the test is completed, the lifting platform will automatically stop moving and display the tension value.
The unique automatic averaging function can automatically average and display multiple test results, reducing the workload and intensity of the operator.
It adopts digital LCD display, one side displays real-time values, and the other side displays test results. It is very convenient to read the test results directly.