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An electronic load simulator is developed in order to test the aerocraft conveniently.Aerocraft sensor voltage signal of pressure and temperature can be simulated.The voltage and current signal of valve and detonator can also be simulated.Correlative voltage signal and time signal can be gathered.All function module is compositive in an equipment.All external interface of electric signal is collected in some plugs.All the process is controled. The electronic load simulator is used in testing the aerocraft.Testing data is exact.Electric matching characteristic of driving circuit is validated.The process of connecting numerous cables and plugs is predigested.At the same time,the probability of false connecting is reduced greatly.