Environmental test equipment is used to artificially accelerate the simulation of natural environmental conditions of the test equipment. It involves temperature, humidity, air pressure, shock, vibration, electrostatic field, external magnetic field, chemical corrosion and other almost all natural environmental factors, which can be roughly divided into five categories:
① Climatic environmental factors;
② mechanical environmental factors;
③ electromagnetic environmental factors;
④ biological environmental factors;
⑤ chemical environmental factors.