-
E-mail
jackzhang2002@163.com
-
Phone
15001318480
-
Address
Room 406, No. 2 Ganlu Garden, Shilibao, Chaoyang District, Beijing (Jintai Lida Office Building)
Zhongke Weidian (Beijing) Technology Co., Ltd
What steps should be followed when using a suspended droplet micro tensiometer?
Date: 2025-11-12Read: 1
Suspended droplet micro tensiometer is a precision instrument used to measure the surface tension of liquids, commonly used in various fields such as chemistry, physics, materials science, and biology. It calculates the surface tension of a liquid by measuring the tension changes of droplets in a specific environment. This instrument is widely used in the study of liquid properties and industrial production, especially in the fields of coatings, paints, cleaning agents, and nanotechnology, due to its high precision and simplicity.
Suspended droplet micro tensiometerThe main components consist of:
1. Capillary tube or suspension wire
The capillary or filament is the core part of a suspended droplet tensiometer, in which liquid droplets are suspended to form droplets. The size and material of capillaries have a significant impact on measurement results, and glass or metal materials with good surface smoothness and non wetting properties are usually selected.
2. Droplet formation system
The formation of droplets is usually controlled by micro pumps or precision injection systems. The system requires precise control of liquid flow rate and droplet formation to ensure the reproducibility and accuracy of the experiment.
3. Optical system
In order to accurately observe the morphological changes of droplets, high-precision optical systems such as microscopes, cameras, etc. are equipped. These devices assist operators in real-time observation and measurement of droplet size, shape, and interaction with the environment.
4. Measurement and data processing system
The measurement system generally includes sensors, amplifiers, and data analysis software, which are used to obtain real-time droplet morphology data and calculate surface tension. The data processing system will automatically process the data and analyze it according to preset algorithms to generate numerical values of surface tension.
When using a suspended droplet micro tensiometer, the following steps are generally required:
1. Preparation work
Clean the instrument and materials used to ensure that the surface of the capillary or wire is not contaminated. Select a suitable liquid sample and inject it into the droplet formation system.
2. Adjust the conditions for droplet formation
By adjusting the flow rate of the liquid and the size of the formed droplets through a precision control system, ensure that the droplets are in a suitable hanging state.
3. Observe droplet morphology
Observe the shape changes of droplets using an optical system and record the size and shape of the droplets. At this point, the experimenters can adjust the focal length and viewing angle of the optical system as needed for accurate measurement.
4. Data analysis
The data processing system will automatically calculate the surface tension and calculate the surface tension value of the liquid based on the morphological changes of the droplets. Users can view and save data through the instrument's display screen or analysis software connected to a computer.
5. Experiment completion and cleaning
After the experiment is completed, the instrument needs to be cleaned to avoid residual substances affecting the next experiment.