Active agent surface tension testerIt is a professional measuring/determining instrument used to measure the surface tension value of liquids. It achieves the measurement of the surface tension value of liquids through the principles of platinum plate method (different from the hanging plate method and platinum plate method), platinum ring method, bubble method, hanging drop method, droplet volume method, and droplet weight method. Meanwhile, using software technology, it is possible to measure the surface tension values that change over time.

The force acting on the surface of a liquid to reduce its surface area is called liquid surface tension. The reason for its formation is that there is a thin layer on the surface of the liquid in contact with the gas, called the surface layer. The molecules in the surface layer are sparser than those inside the liquid, and the distance between molecules is larger than that inside the liquid. The interaction between molecules is manifested as gravity. For example, if you want to pull the spring apart, the spring will actually show a tendency to contract.

The surface tension meter is a specially developed instrument for the high precision control requirements of users in the interface chemistry testing process. It fully adopts micro weighing analysis balance technology, high-precision displacement mechanism controlled by stepper motor, and digital semiconductor temperature sensor. The instrument is easy to operate, has complete functions and quality, and has three different testing principles and powerful data management functions.

　　Active agent surface tension tester

1. Testing method:Simultaneously design two testing methods: platinum plate and platinum ring. You can choose either one or both at the same time

2. Control method:Touch operation, automatic lifting of sample table, automatic conversion

3. Lifting speed:1-300mm/min

4. Display mode:Five inch color touch screen display

5. Measurement time:Platinum plate method takes 10 seconds, while ring gold plate method requires5Within seconds

6. Sample quantity required:Platinum plate method ≥3mLPlatinum Ring Road ≥5mL

7. Measurement range:0-1000（mN/m）

8. resolving power:0.01（mN/m）

9. Accuracy:0.01（mN/m）

10. Repeatability:0.01（mN/m）

11. Accuracy of electronic balance:One ten thousandth of a gram domestically produced

12. Weighing system type:Electromagnetic force balance

13. Accuracy automatic calibration:Provide weight correction, two-point coefficient correction for distilled water and anhydrous ethanol, and temperature correction

14. Data processing software:Standard configuration, software can be operated, stored, exported Excel data, printed, etc. through a computer

15. Thermostatic interface: configured to test surface tension values at specific temperatures