Ion thruster rolling torque measurement method and device, storage medium and terminal

The invention relates to an ion thruster rolling torque measurement method and device, a storage medium and a terminal. The method comprises the following steps: installing an ion thruster, a Faraday array and a laser-induced fluorescence measurement assembly in a vacuum chamber; the ion thruster, the Faraday array and the laser induced fluorescence measurement assembly are calibrated; after the calibration is passed, the plasma density of the beam is measured through the Faraday array, and the beam density of the ion thruster is obtained; the plasma rotation angular velocity of the grid electrode is measured through the laser-induced fluorescence measurement assembly, and the rotation angular velocity of the ion thruster is obtained; and calculating the rolling torque of the ion thruster according to the beam density, the rotation angular velocity and the distance from the measurement point to the center of the grid electrode. According to the invention, effective measurement of the rolling torque of the ion