Abstract：On the basis of principle of dielectric properties of frozen soil components,laboratory study on the temperature-dielectric properties of air,water,ice and dry soil were carried out.It is found that the variation of frozen soil total dielectric constant depends on the phase transition of water and ice in the process of temperature change,and the influence of air and dry soil on soil total dielectric constant is negligible.Based on these characteristics,a method for detecting frozen soil by using the difference of dielectric constant of air,solid soil,water and ice is proposed,and taking the experiment for the dielectric properties of typical frozen soil.The experimental results show that the variation of the dielectric constant of soil freezing process is more obvious and easy to distinguish,therefore,it is feasible to use the capacitive sensor based on dielectric characteristics to detect the frozen soil.
刘银锋,余国河,杜建苹,刘柯,翟龙升. 基于介电特性的冻土检测方法研究[J]. 气象水文海洋仪器, 2017, 34(4): 18-21.
Liu Yinfeng,Yu Guohe,Du Jianping,Liu Ke,Zhai Longsheng. Study on frozen soil detection method based on dielectric properties. Meteorological Hydrological and Marine Instrument, 2017, 34(4): 18-21.
2017, Vol. 34 
