Thermocouple adaptive plugging device and method

The invention discloses a thermocouple self-adaptive plugging device and method. The thermocouple self-adaptive plugging device comprises a driving unit, a displacement sensor, a pull pressure sensor and a controller. The driving unit is provided with a plugging channel for a thermocouple to pass through, and the displacement sensor is arranged on the driving unit; the tension and pressure sensor is arranged at one end of the driving unit and is fixed relative to the driving unit and the catheter respectively; and the controller is in communication connection with the driving unit, the displacement sensor and the pull pressure sensor. Through cooperation of the controller, the driving unit and the sensor, automatic control of insertion and extraction of the thermocouple in and out of the conduit is realized, manual insertion and extraction operation of an operator is not needed, a large operation space is not needed, and radiation damage to the operator caused by close-range operation can be avoided when the