Device for calibrating LVDT (Linear Variable Differential Transformer) sensor in high and low temperature environment

The invention discloses a calibration device for an LVDT (Linear Variable Differential Transformer) sensor in a high-low temperature environment. The calibration device comprises a high-low temperature box, a displacement table, a support frame, the LVDT sensor and a clamping device, and a measuring mechanism and a clamping device, the displacement table is provided with a connecting rod extending in the left-right axis direction, the tail end of the connecting rod is provided with an output end, the output end is used for pushing a to-be-calibrated LVDT sensor to move, and the measuring mechanism is used for measuring the displacement change of the output end and calibrating the measurement result of the LVDT sensor; the LVDT sensor and the measuring mechanism are both arranged in the high-low temperature box, the LVDT sensor is installed on the LVDT sensor clamping device, the measuring mechanism is installed on the measuring mechanism clamping device, the LVDT sensor clamping device and the measuring mecha