• Main functions of the system: It is used to study the hydrogen permeability of metal materials and their coatings, and to obtain the mechanism of     hydrogen (and its isotopes) interaction with materials
• The main components of the system: 316L stainless steel spherical main vacuum chamber, high-precision quadrupole mass spectrometer,                 vacuum  acquisition and detection system, permeation rate calibration system, permeation sample clamping system and heating furnace, gas           supply system, bench and measurement and control software
• Main technical indicators of the system: overall helium leakage rate<5E-10Pa.m3/s; The dynamic vacuum degree is better than 3E-6Pa; Sample     heating temperature≤ 1200°C; Mass measurement range of mass spectrometry (0-128) amu