Pressure micro-control device for in-situ collection of sample surface molecules and operation method and use method thereof

The invention discloses a pressure micro-control device for in-situ collection of surface molecules of a sample and an operation method and a use method of the pressure micro-control device. The micro-control device comprises a base, a mounting base which is arranged on the base, a sample collector which is mounted on the mounting base, a supporting base which is arranged below the sample collector, a pressure sensor which is arranged below the supporting base and is used for weighing, a position sensor which is arranged above the stepping motor, a core algorithm processing module which is used for receiving information of the pressure sensor and the position sensor which pass through the signal processing circuit, a driving circuit is used for receiving the information processed by the core algorithm processing module, a stepping motor which is connected to the driving circuit and is fixed on the mounting seat, and a storage module which is connected to the core algorithm processing module. According to the