新型液体表面张力系数测量仪的改进

Improvement of the new liquid surface tension coefficient measuring instrument

讨论了FD-NST-B液体表面张力系数仪存在的不合理之处以及由此带来的问题,根据实验研究和前人的经验,提出了改进方法和新的实验方案.通过改进原有仪器,修正了传统液体表面张力系数测量公式,推导过程考虑液膜重力,分析此条件下相关测量电压值的选取,提高了液体表面张力系数的测量精度.通过实验对比,得出改进后的实验方案更加合理.

The irrationality of FD-NST-B liquid surface tension coefficient instrument and the resulting problems are discussed.New experimental scheme and improved methods were put forward according to experimental studies and previous experience.The traditional liquid surface tension measurement formula is revised by improving the liquid surface tension coefficient meter.The liquid film gravity is considered in the derivation process,and the selection of the relevant measurement voltage value under this condition is analyzed,which improves the measurement accuracy of the liquid surface tension.Through experimental comparison,it is concluded that the improved experimental scheme is more reasonable.