大学物理 ›› 2009, Vol. 28 ›› Issue (9): 39-39.

• 著者文摘 • 上一篇    下一篇

干涉法测量液体膨胀系数的讨论

许浩瀚   

  1. 苏州科技学院数理分院,江苏苏州215009
  • 出版日期:2009-09-20 发布日期:2009-09-20

Discussion on the measurement of the thermal expansion coefficient of liquid by using optical interference

  • Online:2009-09-20 Published:2009-09-20

摘要: 液体的折射率和液体的密度有直接关系,液体密度又与温度有关,根据已有关于透明介质的折射率公式,可得液体的膨胀系数的测量方法,迈克耳孙干涉法是测量液体折射率的温度系数的简捷的手段.用此方法得出了液体的膨胀系数,进而讨论了关于液体折射率的2个不同公式的精确程度。

关键词: 液体, 折射率, 温度, 膨胀系数

Abstract: The refractive index of liquid is related to the density of liquid, the density of liquid is related to thetemperature of liquid based on a general refractive index equation of transparent material. It is easy for measuring the temperature dependence of the refractive index of liquid by using optical interference. The thermal expansion coefficient of liquid is obtained and the formulas of refractive index of liquid is discussed.

Key words: liquid, refractive index, temperature, expansion coefficient

中图分类号: 

  • O436.1