光杠杆液体体胀系数测量仪

Development of Measuring Instrument for Liquid Volumetric Expansion Coefficient by Using Optical Lever System

针对实验室常见的液体体胀系数测量方法操作繁琐、劳动强度大、测定时间长、实验费用高等缺点,设计了光杠杆测量液体体胀系数的实验装置,使装入试管中的液体温度缓慢变化,通过光杠杆测量液面的高度的变化,可以准确地测量出液体的体胀系数。

The traditional measuring method on the liquid volumetric expansion coefficient in laborato- ry is tedious, labor intensive, costly, and a waste of time. Due to these disadvantages, we design the measuring instrument by using optical lever system. The temperature of the liquid in the test tube changes slowly. By observing the change in liquid height using the optical lever system,we can get the liquid volumetric expansion coefficient precisely.