微波辐射下电解质水溶液中的非热效应研究

Non-thermal Effects on Electrolyte Aqueous Solution under Microwave Radiation

利用终端开路的同轴探头,在不同微波功率下对多种电解质水溶液中的反射系数进行了测量。测量结果显示:微波作用电解质水溶液中存在新的现象,溶液中的反射系数受微波功率大小影响,并且影响的程度与电解质溶液电导率大小有关。以NaCl水溶液为例,进行了多物理场计算和细致的温度测量,计算和测量结果同时排除了热效应导致此现象发生的可能,微波作用于电解质溶液的确存在非热效应。

The reflection coefficients from an open-ended coaxial line probe, which is merged in electrolyte aqueous solutions, are measured under the different microwave powers.The measured results show that there is a new phenomenon: the reflection coefficient varies with microwave power.We find that the microwave power seem to directly influence the conductivity of the aqueous electrolyte solution.In the case of sodium chloride the calculation of multiphysics and measurement of temperature allow for the exclusion of thermal effects, so,the variation in reflection coefficient must be a non -thermal effect on the electrolyte aqueous solution under microwave radiation.