This model integrates in-situ symmetrical loading into the large dual-axis model, retaining all the functions of the standard large dual-axis model, while realizing symmetrical loading of the upper and lower beams, and the function of keeping the specimen in place, making it easier to capture the part of the specimen that needs to be observed without repeatedly searching for observation points. It can be equipped with high and low temperature environment modules, and a customizable -150℃~1500℃ continuously variable temperature environment module, and can be expanded to install a DIC video extensometer module to collect strain during in-situ mechanical loading.
