ANISOTROPIC RESONANT COLUMN SYSTEM AND METHOD FOR STABLE AND ACCURATE TEMPERATURE CONTROL

The invention belongs to the technical field of testing the strength characteristics of solid materials by mechanical stress, and discloses an anisotropic resonant column system and method for stable and accurate temperature control, which comprises a temperature control pressure chamber part, a torsional excitation part, an axial loading part, a temperature and signal acquisition control part and an auxiliary equipment part. According to the invention, the eccentricity of the sample in torsional vibration is prevented, and the original soil or remolded soil is subjected to back pressure saturation, so that the sample is completely saturated. Digital display of each sensor value by software program and accurate and effective control of axial drive, torsion drive and automatic temperature regulator to achieve the test target value. Ensure that the device can be installed in work normally at the ambient temperature of 20°C ~ 90°C, accurately measure and control the changes of liquid pressure and liquid volume, and accurately measure and control the changes of gas pressure. -1/2 244, Fig. 1