▎ 摘　　要

NOVELTY - Modified laser-induced graphene composite material based on magnetic-induced doping, obtained by laser-induced graphene-doped magnetic polystyrene microspheres and its distribution induced by an external magnetic field. USE - Used as modified laser-induced graphene composite material based on magnetic-induced doping. ADVANTAGE - The composite material has a sensitivity of 4426.12. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparing the composite material, comprising (1) attaching a polyimide film with a thickness of 100 µm with a water-soluble tape to one side, and placing flat on a laser cutting processing platform, (2) taking 1 ml magnetic polystyrene microspheres with a diameter of 4.2 µm and placing in a centrifuge for centrifugation, removing the supernatant, using a pipette gun to take 250 μl and adding into the 2 ml single-layer graphene dispersion, using a stirrer to stir for 15 minutes, and obtaining the monolayer graphene mixed dispersion liquid that is doped with magnetic polystyrene microsphere, and (3) coating the graphene dispersion on the surface of the laser-induced graphene sample, placing on the surface of the permanent magnet, and naturally air-drying and solidifying to form a film at room temperature.