Rapid preparation method of zinc-based porous hierarchical structure sensor

The invention belongs to the technical field of additive manufacturing, and provides a rapid preparation method of a zinc-based porous hierarchical structure sensor. According to the method, the zinc-based porous hierarchical structure sensor is prepared through laser powder bed melting forming, ZnO is synthesized in situ by matching zinc oxide-zinc composite powder and introducing oxygen in the printing process, and the special requirements for the content and distribution of ZnO at different parts in the zinc-based porous hierarchical structure sensor are met; the special requirements of different parts of the zinc-based porous hierarchical structure sensor on porosity, pore distribution, pore form, mechanical and physical and chemical properties are met by regulating and controlling printing parameters. O2 is introduced on line for in-situ synthesis of ZnO, so that the problems of difficulty in dispersion and difficulty in direct forming caused by direct addition of excessive ZnO into the initial material