During the testing process of LAUDA surface tension meter, the pressure will rise to a large value and the bubble radius will be small. At this point, the radius of the bubble is equal to the radius of the capillary tube, and the bubble forms a hemispherical shape. Afterwards, the bubbles burst and detach from the capillary, and new bubbles continue to form. By depicting the characteristic curve of bubble pressure during the process, we can use it to calculate the surface tension.

The tensiometer has a fast and reliable quality control mode. After setting the measurement parameters, the surface tension value can be accurately measured and displayed. This product is specifically designed for continuous monitoring mode in the production process. Users can easily adjust measurement parameters. Being able to independently set the measurement range, number of test data, and average measurement value is an ideal tool for research and development.

Before using the LAUDA surface tension meter, it is necessary to know the following:

1. Before testing, it should be ensured that the host has been preheated for at least 30 minutes, that is, the host should be turned on for 30 minutes before formal testing, and the surface tension meter measurement system can be used after it is stable.

2. Before use, the randomly attached hook and platinum ring should be hung on the hook and reset to zero by pressing the "peel off" button.

3. Before each test, ensure that the platinum ring and glass dish are clean. The specific method is:

(1) Under normal circumstances, clean the platinum ring with running water (distilled water should be used) first, and then burn it with an alcohol lamp. When the entire ring turns slightly red, the process ends (about 20-30 seconds), and hang it for later use (not for too long to avoid moisture adsorption on the platinum ring).

(2) Before testing, the glass dish should be cleaned and dried. During testing, a small amount of the tested sample should be taken to pre wet the glass dish to maintain the validity of the measured data.

(3) Please do not let the platinum ring come into contact with any liquid before it has cooled down, in order to avoid bending and deformation that may affect the accuracy of the measurement.

Alright, the above is the introduction about LAUDA surface tension meter, hoping to help everyone use this product better.