Large-mass high-temperature thermogravimetric analyzer with calibration measurement mechanism

A large-mass high-temperature thermogravimetric analyzer with a calibration measuring mechanism comprises a heating furnace used for heating a sample and a weight measuring box arranged below the heating furnace, an electronic balance used for measuring the weight of the heated sample is arranged in the weight measuring box, a pull rope is hung on a hook at the bottom of the electronic balance, the free end of the pull rope is connected with a weight, and the weight is connected with the calibration measuring mechanism. A lifting assembly used for controlling the weights to ascend is arranged in the weight measuring box and used for bearing the weights. According to the device, the weight is hung on the hook at the bottom of the electronic balance, hanging gravity is applied to the electronic balance through the hung weight, the accuracy of the electronic balance is calibrated through the hanging gravity of the weight, and in order to prevent the electronic balance from being always in a continuous load worki