A test apparatus composed of mechanical shock and datacollection system is designed to study the performance of gas generator.The mechanical shock part aims at exerting impact on ignition the gas generators

the data collection can record a-t curve of acceleration varying with time

the p_in-t curve for pressure′s variation in the closed inflator pump and the p-t curve for pressure′s alteration in the gas generator at the same time after gas generator detonates.The tests on the gas generators with different initial temperature were carried out by this testing system to obtain the rule of initial temperature′s influence on gas-forming pressure and speed influence for gas generator.