Fig. 2. Schematic diagram of the dielectric properties/electrical conductivity
measurement unit: 1, freezing chamber; 2, cable bracket and probe stand; 3, the
open ended coaxial cable/ electrode connecting line; 4, the slim form probe/
electrode; 5, sample vessel made of stainless steel mesh; 6, thermometer; 7, sealing
lid; 8, optical fiber temperature sensor; 9, the silicon rubber plug; 10, sample to be
measured; 11, shelf.