Fluxgate current sensor and use method thereof

The invention relates to the technical field of sensors, in particular to a fluxgate current sensor and a using method thereof.The fluxgate current sensor comprises a base and a fluxgate sensor body, the fluxgate sensor body is installed on the top of the base, an inner cavity of the fluxgate sensor body is filled with argon, and a positioning mechanism and a sealing monitoring mechanism are installed on the front face and the top end of the side wall of the fluxgate sensor body respectively. The rotary knob drives the worm to rotate, the first rotary disc rotates clockwise under the cooperation of the worm and the worm gear teeth, the guide groove extrudes the pin towards the inner side, the sliding block is promoted to move towards the inner side, the idler wheel clamps and limits the conductor, the fastening nut is rotated to make contact with the base, the worm can be braked, and therefore conductor limiting is achieved; the conductor is always in the center of the fluxgate sensor, and magnetic field dist