用硅压阻式力敏传感器测量液体的表面张力系数

Measurement of Liquid Surface Tension Coefficient by Using SiResistanceStrain Gauge

用硅压阻式力敏传感器和环状吊片较精确测量水和酒精等液体的表面张力系数。并测量不同浓度的洗洁精溶液的表面张力系数,得出表面张力系数随洗洁精溶液浓度的增大而减小,并趋于一定值的结论。

Liquid surface tension coefficients of detergents with different concentrations were measured by using Siresisntancestrain gauge. It was found that the coefficient is decreased and eventually tends to a certain constant value when the detergent concentration is increased.