Introduction: Place the liquid to be tested in a constant temperature sample container. A capillary made of Teflon will be immersed in the liquid at a given immersion depth. The capillary is connected to a gas interface and a sensitive pressure sensor during the test. In the middle, a gas or an inert gas passes through the capillary to form a bubble at the capillary end, and the pressure of the bubble is measured. When the bubble pressure tension meter JBT07 continuously increases the rheology of the gas, the frequency of bubble formation is increased, and the survival time of each bubble is correspondingly reduced. At the beginning of the experiment, the formation of a bubble takes two seconds, and at the end, ten bubbles can be formed per second. When the bubble radius at the end of the capillary is equal to the capillary radius, the bubble pressure reaches a large value of zui. Once the bubble radius exceeds the capillary radius, the bubble pressure is significantly reduced. The large pressure of the zui that produces bubbles is proportional to the dynamic surface tension. The hydrostatic pressure P is proportional to the immersion depth of the capillary. This product can be widely used in cosmetics, mineral processing, paper making, medical and health, building materials, environmental protection, marine, chemical, petroleum, spray, paint, ink, printing and dyeing, textile, integrated optics, liquid crystal display and other industries. Technical parameter: 1. Measurement range: 10-100 mN/m, measurement accuracy: 0.1 mN/m 2. Bubble frequency range: (depending on the liquid and capillary used): 0.05-30 Hz 3. Liquid level control: precise liquid level position control 4. Bubble life: (depending on the liquid used and capillary): 5 ms - 50 sec 5. Temperature range: room temperature 6. Temperature resolution: ±0.1 °C 7. Power: AC 220 (or 110) V, 50 Hz 8. Power: 50W
