Metal vapour pressure detection apparatus and detection method

A metal vapour pressure detection apparatus, wherein the detection apparatus comprises a metal evaporation cavity and a pressure detection mechanism disposed on an outer side of the metal evaporation cavity, wherein

• the metal evaporation cavity is used to melt and evaporate metal to form metal vapour;
• and
• the pressure detection mechanism comprises a displacement generation system and a displacement detection system disposed on the displacement generation system;
• the displacement generation system comprises a displacement slider sleeve, a displacement slider disposed in the displacement slider sleeve, and a pressure balance spring connected to the displacement slider;
• the displacement slider sleeve is in communication with the metal evaporation cavity, and the displacement slider slides along the displacement slider sleeve under a pressure of the metal vapour;
• one end of the pressure balance spring is connected to the displacement slider, and the other end is connected to the displacement detection system;
• and the pressure detection mechanism determines the pressure of the metal vapour according to coordinates of the displacement slider detected by the displacement detection system.