Jaeger法测定液体表面张力系数实验装置的改进

农业生产上经常会遇到要研究液体表面张力,测量表面张力系数的问题.为此,对Jaeger法测定液体表面张力系数的实验原理、方法及仪器进行了分析研究;同时,对实验装置进行了改进,设计了复合活塞加压装置,使其更容易控制气泡生成速度,实现了无水加压.同时,应用扩散硅气体压力传感器测量压强,实现了非电量电测、数字显示、直观易读,能够更准确地测得气泡最大压强,提高了液体表面张力系数的测量精度.

Improve the Experiment Device to Measure the Liquid Surface Tension Coefficient with method of Jaeger

In the agricultural production, It is often to meet some questions about liquids superficial phenomenon, It need to study the liquid surface tension, and measure the liquid surface tension coefficient. Through the analysis of experimental principle, method and instrument of the Jaeger we have studied the improvement of the Experiment device to measure the liquid surface tension coefficient, and designed the composite pistons. In the process of measure, it is easy to control the speed of the bubbles, and to give pressure without water. Drift of silicon pressure transducer was used to measure the intensity of pressure, and give the result with digits.It makes the measurement of maximum pressure of the bubbles more accurate. The precision Of the experiment has been improved.