laser initiation

The principle and measuring technique for determining the thermal diffusivity of aqueous solutions of sodium chloride using the laser-induced thermal grating technique are described.

论述了应用激光引发热栅方法测量无机盐水溶液热扩散系数的实验原理和技术,给出了氯化钠水溶液在溶质质量摩尔浓度为0 ~ 4 mol/kg和290 ~ 373 K温度范围内的热扩散系数的测量结果,并与文献数据进行了比较。